Frank Schafmeister
Leistungselektronik und Elektrische Antriebstechnik (LEA)
schafmeister@lea.uni-paderborn.deID
98 Publications
2024 | Conference Paper | LibreCat-ID: 54355
Analysis of Inverter Operation Modes of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive On-Board DC-DC
D. Urbaneck, J. Wiegard, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
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D. Urbaneck, J. Wiegard, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
2024 | Conference Paper | LibreCat-ID: 54353
Study on Sample Geometries for Ferrite Characterisation in the MHz-Range
T. Piepenbrock, L. Keuck, S. Schachten, J. Böcker, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
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T. Piepenbrock, L. Keuck, S. Schachten, J. Böcker, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
2024 | Conference Paper | LibreCat-ID: 54354
Pitfalls and their Avoidability in the Double-Pulse Test
N. Förster, D. Urbaneck, B. Kohlhepp, D. Kübrich, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
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N. Förster, D. Urbaneck, B. Kohlhepp, D. Kübrich, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
2024 | Conference Paper | LibreCat-ID: 54357
FEM Modelling of Dimensional-Resonant Inductors for LLC Converters in MHz Range
T. Piepenbrock, F. Schafmeister, J. Böcker, in: SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia, n.d.
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T. Piepenbrock, F. Schafmeister, J. Böcker, in: SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia, n.d.
2024 | Conference Paper | LibreCat-ID: 54356
Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter
R. Unruh, J. Böcker, F. Schafmeister, in: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, Darmstadt, n.d.
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R. Unruh, J. Böcker, F. Schafmeister, in: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, Darmstadt, n.d.
2023 | Conference Paper | LibreCat-ID: 48352
An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors
R. Unruh, J. Böcker, F. Schafmeister, in: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), IEEE, 2023.
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R. Unruh, J. Böcker, F. Schafmeister, in: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), IEEE, 2023.
2023 | Conference Paper | LibreCat-ID: 54352
Advanced Synchronous Rectification for an IGBT-Based ZCS LLC Converter with High Output Currents for a 2 kW Automotive DC-DC Stage
D. Urbaneck, J. Böcker, F. Schafmeister, in: PCIM Europe 2023; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management , Nuremberg, 2023.
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D. Urbaneck, J. Böcker, F. Schafmeister, in: PCIM Europe 2023; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management , Nuremberg, 2023.
2022 | Conference Abstract | LibreCat-ID: 30347
Compensation of LF Common-Mode Noise by the internal DC/DC-Stage for transformerless On-Board Chargers at Three- and Single-Phase Operation
F. Schafmeister, in: International Conference on Electric & Electronic in Hybrid and Electric Vehicles and Electric Energy Management (EEHE), Bamberg, Germany, n.d.
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F. Schafmeister, in: International Conference on Electric & Electronic in Hybrid and Electric Vehicles and Electric Energy Management (EEHE), Bamberg, Germany, n.d.
2022 | Conference Paper | LibreCat-ID: 30349
An Open-Source Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing and Evaluating Power Transistors
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, Houston, TX, USA, n.d.
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N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, Houston, TX, USA, n.d.
2022 | Conference Paper | LibreCat-ID: 30350
Robust Hysteresis Control for LLC Resonant Converters Using a Fully Isolated Measurement Scheme
L. Keuck, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, n.d.
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L. Keuck, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, n.d.
2022 | Conference Paper | LibreCat-ID: 30844
Comparative Evaluation of MVAC-LVDC SST and Hybrid Transformer Concepts for Future Datacenters
J. Huber, P. Wallmeier, R. Pieper, F. Schafmeister, J. Kolar, in: Proc. 9th IEEJ International Power Electronics Conference (IPEC), IEE Japan, Himeji, Japan, n.d.
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J. Huber, P. Wallmeier, R. Pieper, F. Schafmeister, J. Kolar, in: Proc. 9th IEEJ International Power Electronics Conference (IPEC), IEE Japan, Himeji, Japan, n.d.
2022 | Conference Paper | LibreCat-ID: 34176
Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%
R. Unruh, F. Schafmeister, J. Böcker, in: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), IEEE, 2022.
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R. Unruh, F. Schafmeister, J. Böcker, in: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), IEEE, 2022.
2022 | Conference Paper | LibreCat-ID: 35126
An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components
N. Förster, J. Hölscher, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.
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N. Förster, J. Hölscher, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.
2022 | Conference Paper | LibreCat-ID: 35125
An Open-Source Transistor Database and Toolbox as a Unified Software Engineering Tool for Managing and Evaluating Power Transistors
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2022.
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N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2022.
2022 | Conference Paper | LibreCat-ID: 35127
An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components
N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022, pp. 1–10.
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N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022, pp. 1–10.
2022 | Journal Article | LibreCat-ID: 44163
LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto
P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 37 (2022) 13413–13427.
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P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 37 (2022) 13413–13427.
2022 | Conference Paper | LibreCat-ID: 44164
Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer Ratio Applications
P. Rehlaender, B. Korthauer, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.11.
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P. Rehlaender, B. Korthauer, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.11.
2022 | Conference Paper | LibreCat-ID: 44161
Phase-Shift Modulation for Flying-Capacitor DC-DC Converters
P. Rehlaender, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, pp. 1–9.
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P. Rehlaender, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, pp. 1–9.
2021 | Conference Paper | LibreCat-ID: 29849
Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger
B. Strothmann, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
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B. Strothmann, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
2021 | Journal Article | LibreCat-ID: 29892
Interleaved Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer Ratio Applications
P. Rehlaender, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 36 (2021) 10065–10080.
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P. Rehlaender, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 36 (2021) 10065–10080.
2021 | Conference Paper | LibreCat-ID: 29895
Design and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter with Low-Voltage Output
B. Korthauer, P. Rehlaender, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
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B. Korthauer, P. Rehlaender, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
2021 | Conference Paper | LibreCat-ID: 29850
Single-Phase Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger with Minimized DC-Link
B. Strothmann, G. Book, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2021, pp. 1–8.
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B. Strothmann, G. Book, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2021, pp. 1–8.
2021 | Conference Paper | LibreCat-ID: 29871
LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification of a 2 kW DC-DC Converter for EVs
D. Urbaneck, P. Rehlaender, J. Böcker, F. Schafmeister, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021.
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D. Urbaneck, P. Rehlaender, J. Böcker, F. Schafmeister, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021.
2021 | Conference Paper | LibreCat-ID: 30340
Comparison of unidirectional Three- and Four-Wire based Boost PFC-Rectifier Topologies for Non-Isolated Three-Phase EV On-Board Chargers under Common-Mode Aspects
M. Hagemeyer, P. Wallmeier, F. Schafmeister, J. Böcker, in: Proc. 36th IEEE Applied Power Electronics Conference (APEC), IEEE, Phoenix, AZ, USA, 2021, pp. 569–576.
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M. Hagemeyer, P. Wallmeier, F. Schafmeister, J. Böcker, in: Proc. 36th IEEE Applied Power Electronics Conference (APEC), IEEE, Phoenix, AZ, USA, 2021, pp. 569–576.
2021 | Newspaper Article | LibreCat-ID: 30348
Transformerless On-Board Chargers at Three- and Single-Phase Operation: Compensation of LF Common-Mode Noise by the Internal DC/DC-Stage
F. Schafmeister, Power System Design (PSD) Web Magazine (2021).
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F. Schafmeister, Power System Design (PSD) Web Magazine (2021).
2021 | Conference Paper | LibreCat-ID: 29938
Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions
R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
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R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
2021 | Conference Paper | LibreCat-ID: 29893
Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances
P. Rehlaender, R. Unruh, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
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P. Rehlaender, R. Unruh, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
2021 | Conference Paper | LibreCat-ID: 29899
Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration
P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
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P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
2020 | Conference Paper | LibreCat-ID: 29939
Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design
R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
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R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
2020 | Conference Paper | LibreCat-ID: 29894
Dual Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter
P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
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P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
2020 | Conference Paper | LibreCat-ID: 29896
A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode for Automotive Onboard DC-DC Conversion
P. Rehlaender, T. Grote, S. Tikhonov, S. Mario, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
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P. Rehlaender, T. Grote, S. Tikhonov, S. Mario, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
2020 | Conference Paper | LibreCat-ID: 29898
Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer Range Utilizing Asymmetric LLC Operation
T. Rüschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
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T. Rüschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
2020 | Conference Paper | LibreCat-ID: 29874
LLC Converter Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept Study for a 2.2 kW Automotive DC-DC Stage
D. Urbaneck, P. Rehlaender, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
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D. Urbaneck, P. Rehlaender, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
2020 | Conference Paper | LibreCat-ID: 30339
Practical Implementation and Verification of Simple-to-Implement Digital Current Observer for Half-Bridge Topologies
M.E. Ahmmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Digital Days), IEEE, Nuremberg, Germany, 2020.
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M.E. Ahmmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Digital Days), IEEE, Nuremberg, Germany, 2020.
2020 | Patent | LibreCat-ID: 30362
Apparatus and method for charging an electric battery vehicle
F. Schafmeister, (2020).
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F. Schafmeister, (2020).
2020 | Conference Paper | LibreCat-ID: 29940
1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications
R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2020.
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R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2020.
2020 | Conference Paper | LibreCat-ID: 30001
Heat dissipation strategies for silicon carbide power SMDs and their use in different applications
B. Strothmann, T. Piepenbrock, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2020, pp. 1–7.
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B. Strothmann, T. Piepenbrock, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2020, pp. 1–7.
2020 | Conference Paper | LibreCat-ID: 29880
11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC
R. Unruh, F. Schafmeister, J. Böcker, in: 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), IEEE, 2020.
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R. Unruh, F. Schafmeister, J. Böcker, in: 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), IEEE, 2020.
2019 | Conference Paper | LibreCat-ID: 29999
Common Mode Analysis of Non-Isolated Three-Phase EV-Charger for Bi-Directional Vehicle-to-Grid Operation
B. Strothmann, F. Schafmeister, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2019, pp. 1–7.
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B. Strothmann, F. Schafmeister, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2019, pp. 1–7.
2019 | Conference Paper | LibreCat-ID: 30002
Pareto Design and Switching Frequencies for SiC MOSFETs Applied in an 11 kW Buck Converter for EV-Charging
B. Strothmann, F. Schafmeister, J. Böcker, in: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2019.
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B. Strothmann, F. Schafmeister, J. Böcker, in: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2019.
2019 | Conference Paper | LibreCat-ID: 16442
Analytical Modeling and Design of an Active Clamp Forward Converter Applied as a Single-Stage On-Board DC-DC Converter for EVs
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe 2019, 2019.
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P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe 2019, 2019.
2019 | Conference Paper | LibreCat-ID: 29942
MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses
R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2019.
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R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2019.
2019 | Conference Paper | LibreCat-ID: 30334
Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for an LLC Resonant Converter
L. Keuck, F. Schafmeister, J. Böcker, in: Proc. 34th IEEE Applied Power Electronics Conference (APEC), IEEE, Anaheim, CA, USA, 2019, pp. 1415–1422.
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L. Keuck, F. Schafmeister, J. Böcker, in: Proc. 34th IEEE Applied Power Electronics Conference (APEC), IEEE, Anaheim, CA, USA, 2019, pp. 1415–1422.
2019 | Conference Paper | LibreCat-ID: 30335
Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for LLC Resonant Converter
L. Keuck, F. Schafmeister, J. Böcker, H. Jungwirth, M. Schmidhuber, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
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L. Keuck, F. Schafmeister, J. Böcker, H. Jungwirth, M. Schmidhuber, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30337
Novel Current Measurement Concept for Half Bridge Topologies based on simple-to-implement Digital Current Observer
M.E. Ahmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
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M.E. Ahmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30336
LCC Resonant Converter for Piezoelectric Transducers with Phase Shift Control
S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
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S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30338
Bidirectional Resonant Converter with Integrated Magnetics for On-Board Chargers
S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 770–774.
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S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 770–774.
2019 | Conference Paper | LibreCat-ID: 30344
Interleaved Active Clamp Forward Converters as Single Stage On-Board DC-DC Converters for EVs – an Accurate Model and Design Considerations
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
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P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30346
A PCB-Integrated Winding Using a Litz Structure for a Wireless Charging Coil
P. Rehlaender, T. Grote, S. Tikhonov, H. Njiende, F. Schafmeister, J. Böcker, P. Thiemann, in: Proc. 21st European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Genova, Italy, 2019, pp. 1–9.
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P. Rehlaender, T. Grote, S. Tikhonov, H. Njiende, F. Schafmeister, J. Böcker, P. Thiemann, in: Proc. 21st European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Genova, Italy, 2019, pp. 1–9.
2019 | Conference Paper | LibreCat-ID: 30345
Analytical Topology Comparison for a Single-Stage On-Board EV-Battery Converter
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 2477–2482.
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P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 2477–2482.
2019 | Patent | LibreCat-ID: 30361
Current measurement circuit for TCM-PFC
R. Pohlmann, F. Schafmeister, (2019).
LibreCat
R. Pohlmann, F. Schafmeister, (2019).
2018 | Conference Paper | LibreCat-ID: 30331
Adaptive Frequency Control of DC-DC-Converters for Maximum Efficiency Using Artificial Neural Network
L. Keuck, A. Munir, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2018.
LibreCat
L. Keuck, A. Munir, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2018.
2018 | Conference Paper | LibreCat-ID: 30332
Switching Loss Characterization of Wide Band-Gap Devices by an Indirect Identification Methodology
L. Keuck, N. Jabbar, F. Schafmeister, J. Böcker, in: Proc. 20th European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Riga, Latvia, 2018, pp. 1–10.
LibreCat
L. Keuck, N. Jabbar, F. Schafmeister, J. Böcker, in: Proc. 20th European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Riga, Latvia, 2018, pp. 1–10.
2018 | Conference Paper | LibreCat-ID: 30333
Coupled Inductor Design for Interleaved High-Current DC-DC Converters
M. Hagemeyer, F. Schafmeister, J. Böcker, in: Proc. International Conference on Electrical Machines and Systems (ICEMS), Korea IEE & IEE Japan, Jeju, South-Korea, 2018, pp. 2316–2321.
LibreCat
M. Hagemeyer, F. Schafmeister, J. Böcker, in: Proc. International Conference on Electrical Machines and Systems (ICEMS), Korea IEE & IEE Japan, Jeju, South-Korea, 2018, pp. 2316–2321.
2017 | Patent | LibreCat-ID: 30358
LLC Balancing
H. Figge, F. Schafmeister, T. Grote, (2017).
LibreCat
H. Figge, F. Schafmeister, T. Grote, (2017).
2017 | Patent | LibreCat-ID: 30363
Controller for an Inverter (PV Inverter: PV Self Consumption & symm. Output Control)
P. Wallmeier, F. Schafmeister, (2017).
LibreCat
P. Wallmeier, F. Schafmeister, (2017).
2015 | Conference Paper | LibreCat-ID: 30330
Today's Relevance of Digital Control in Server- and Telecom Power Supplies
F. Schafmeister, T. Grote, H. Figge, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2015.
LibreCat
F. Schafmeister, T. Grote, H. Figge, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2015.
2015 | Patent | LibreCat-ID: 30359
Adaptable AC Input Phase Switching
P. Ide, F. Schafmeister, J. Richter, B. Pour, D. Spesser, D. Herke, (2015).
LibreCat
P. Ide, F. Schafmeister, J. Richter, B. Pour, D. Spesser, D. Herke, (2015).
2015 | Patent | LibreCat-ID: 30360
Resistorless Precharging
M. Hufnagel, F. Schafmeister, (2015).
LibreCat
M. Hufnagel, F. Schafmeister, (2015).
2014 | Conference Paper | LibreCat-ID: 30327
Adaptable AC Input Phase Switching for Optimum Utilization of Various Grid Configurations supplying Power Electronic Converters and EV/HEV On Board Chargers
F. Schafmeister, P. Ide, J. Richter, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
LibreCat
F. Schafmeister, P. Ide, J. Richter, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
2014 | Conference Paper | LibreCat-ID: 30329
A Soft-Switching Interleaved DC-DC Converter with Integrated Magnetics for High Voltage Battery Charger
R. Li, H. Njiende, F. Schafmeister, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
LibreCat
R. Li, H. Njiende, F. Schafmeister, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
2014 | Conference Paper | LibreCat-ID: 30328
Resistorless Precharging of Boost PFCs by Phase Angle Control of Thyristors
F. Schafmeister, M. Hufnagel, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
LibreCat
F. Schafmeister, M. Hufnagel, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
2013 | Conference Paper | LibreCat-ID: 30326
Two-Phase Interleaving Configuration of the LLC Resonant Converter - Analysis and Experimental Evaluation
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Vienna, Austria, 2013, pp. 1392–1397.
LibreCat
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Vienna, Austria, 2013, pp. 1392–1397.
2013 | Patent | LibreCat-ID: 30357
Integrated Magnetic for DCM-PSFB Converter
H. Njiende, R. Li, F. Schafmeister, P. Ide, (2013).
LibreCat
H. Njiende, R. Li, F. Schafmeister, P. Ide, (2013).
2013 | Patent | LibreCat-ID: 30356
Resonant capacitor clamping circuit in resonant converter
H. Figge, F. Schafmeister, (2013).
LibreCat
H. Figge, F. Schafmeister, (2013).
2012 | Conference Paper | LibreCat-ID: 30325
Cost-Effective Implementation of a Digitally Controlled LLC Resonant Converter for Application in Server- and Telecom-PSUs
H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2012, pp. 1–8.
LibreCat
H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2012, pp. 1–8.
2012 | Journal Article | LibreCat-ID: 30324
Novel Hybrid Modulation Schemes Significantly Extending the Reactive Power Control Range of All Matrix Converter Topologies With Low Computational Effort
F. Schafmeister, J. Kolar, IEEE Transactions on Power Electronics 59 (2012) 194–210.
LibreCat
F. Schafmeister, J. Kolar, IEEE Transactions on Power Electronics 59 (2012) 194–210.
2012 | Book Chapter | LibreCat-ID: 30343
Matrixkonverter, Kapitel 3.8
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen , 3rd ed., Springer Vieweg Verlag, Berlin Heidelberg, 2012, pp. 195–296.
LibreCat
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen , 3rd ed., Springer Vieweg Verlag, Berlin Heidelberg, 2012, pp. 195–296.
2012 | Patent | LibreCat-ID: 30355
Digital Slope Compensation for Current Mode Control
F. Schafmeister, T. Grote, (2012).
LibreCat
F. Schafmeister, T. Grote, (2012).
2011 | Conference Paper | LibreCat-ID: 30323
Digital Control Strategy for Multi-Phase Interleaved Boundary Mode and DCM Boost PFC Converters
T. Grote, H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, Phoenix, AZ, USA, 2011, pp. 3186–3192.
LibreCat
T. Grote, H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, Phoenix, AZ, USA, 2011, pp. 3186–3192.
2011 | Conference Paper | LibreCat-ID: 30322
Overcurrent Protection for the LLC Resonant Converter with Improved Hold-Up Time
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. 26th IEEE Applied Power Electronics Conference (APEC), IEEE, Fort Worth, TX, USA, 2011, pp. 13–20.
LibreCat
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. 26th IEEE Applied Power Electronics Conference (APEC), IEEE, Fort Worth, TX, USA, 2011, pp. 13–20.
2011 | Patent | LibreCat-ID: 30354
Unidirektionaler AC-AC-Matrixkonverter mit Dreipunkt Ein- und Ausgangsstufe
F. Schafmeister, J. Kolar, (2011).
LibreCat
F. Schafmeister, J. Kolar, (2011).
2011 | Patent | LibreCat-ID: 30353
Verfahren zum spannungslosen Schalten der Pulswechselrichter-Ausgangsstufe eines indirekten Dreiphasen-AC-AC Matrixkonverters
F. Schafmeister, J. Kolar, (2011).
LibreCat
F. Schafmeister, J. Kolar, (2011).
2010 | Conference Paper | LibreCat-ID: 30321
Scalable Multi Phase Interleaved Boundary Mode PFC Concept enabling Energy- and Cost Efficient PSUs in the kW-Range
F. Schafmeister, X. Wang, T. Grote, P. Ide, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Bari, Italy, 2010, pp. 3831–3835.
LibreCat
F. Schafmeister, X. Wang, T. Grote, P. Ide, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Bari, Italy, 2010, pp. 3831–3835.
2009 | Conference Paper | LibreCat-ID: 30319
Semi-Digital Interleaved PFC Control with Optimized Light Load Efficiency
T. Grote, Fh. Figge, N. Fröhleke, W. Beulen, F. Schafmeister, P. Ide, J. Böcker, in: Proc. 24th IEEE Applied Power Electronics Conference (APEC), IEEE, Washington D.C., USA, 2009, pp. 1722–1727.
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T. Grote, Fh. Figge, N. Fröhleke, W. Beulen, F. Schafmeister, P. Ide, J. Böcker, in: Proc. 24th IEEE Applied Power Electronics Conference (APEC), IEEE, Washington D.C., USA, 2009, pp. 1722–1727.
2009 | Conference Paper | LibreCat-ID: 30320
Adaptive Digital Slope Compensation for Peak Current Mode Control
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, San Jose, CA, USA, 2009, pp. 3523–3529.
LibreCat
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, San Jose, CA, USA, 2009, pp. 3523–3529.
2009 | Patent | LibreCat-ID: 30351
Verfahren zur Nutzung des ausgangsseitigen Blindstromes eines indirekten dreiphasen-Matrixkonverters zur Erzeugung von Eingangsblindstrom
F. Schafmeister, J. Kolar, (2009).
LibreCat
F. Schafmeister, J. Kolar, (2009).
2009 | Conference Paper | LibreCat-ID: 30517
Adaptive digital slope compensation for peak current mode control
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: 2009 IEEE Energy Conversion Congress and Exposition, IEEE, 2009.
LibreCat
| DOI
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: 2009 IEEE Energy Conversion Congress and Exposition, IEEE, 2009.
2008 | Conference Paper | LibreCat-ID: 30318
Paralleling of LLC Resonant Converters using Frequency Controlled Current Balancing
H. Figge, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
LibreCat
H. Figge, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
2008 | Conference Paper | LibreCat-ID: 30317
Semi-Digital Interleaved PFC Control
T. Grote, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
LibreCat
T. Grote, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
2008 | Book Chapter | LibreCat-ID: 30316
Matrixkonverter, Kapitel 3.8
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen, 2nd ed., Springer-Verlag, Berlin Heidelberg, 2008, pp. 188–289.
LibreCat
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen, 2nd ed., Springer-Verlag, Berlin Heidelberg, 2008, pp. 188–289.
2007 | Patent | LibreCat-ID: 30352
Verfahren zur Minimierung der Schaltverluste eines quasi-direkten Dreiphasen-AC/AC-Pulsumrichters bei geringer Amplitude der Ausgangsspannungsgrundschwingung
J. Kolar, F. Schafmeister, (2007).
LibreCat
J. Kolar, F. Schafmeister, (2007).
2007 | Journal Article | LibreCat-ID: 30314
Novel Three-Phase AC–AC Sparse Matrix Converters
J. Kolar, F. Schafmeister, S. Round, H. Ertl, IEEE Transactions on Power Electronics 22 (2007) 1649–1661.
LibreCat
J. Kolar, F. Schafmeister, S. Round, H. Ertl, IEEE Transactions on Power Electronics 22 (2007) 1649–1661.
2007 | Dissertation | LibreCat-ID: 30315
Indirekte Sparse Matrix Konverter
F. Schafmeister, Indirekte Sparse Matrix Konverter, ETH Zürich, Zürich, Switzerland, 2007.
LibreCat
| Files available
F. Schafmeister, Indirekte Sparse Matrix Konverter, ETH Zürich, Zürich, Switzerland, 2007.
2006 | Journal Article | LibreCat-ID: 30313
Comparison of Performance and Realization Effort of a Very Sparse Matrix Converter to a Voltage DC Link PWM Inverter with Active Front End
S. Round, F. Schafmeister, J. Kolar, IEEJ Transactions of the Institute of Electrical Engineers of Japan 126-D (2006) 578–588.
LibreCat
S. Round, F. Schafmeister, J. Kolar, IEEJ Transactions of the Institute of Electrical Engineers of Japan 126-D (2006) 578–588.
2005 | Conference Paper | LibreCat-ID: 30312
Comparison of Performance and Realization Effort of a Very Sparse Matrix Converter to a Voltage DC Link PWM Inverter with Active Front End
S. Round, F. Schafmeister, E. Pereira, L. Serpa, J. Kolar, in: Proc. 5th IEEJ International Power Electronics Conference (IPEC), IEEJapan, Niigata, Japan, 2005.
LibreCat
S. Round, F. Schafmeister, E. Pereira, L. Serpa, J. Kolar, in: Proc. 5th IEEJ International Power Electronics Conference (IPEC), IEEJapan, Niigata, Japan, 2005.
2005 | Conference Paper | LibreCat-ID: 30301
Analytical Calculation of the Conduction and Switching Losses of the Conventional Matrix Converter and the (Very) Sparse Matrix Converter
F. Schafmeister, C. Rytz, J. Kolar, in: Proc. 20th IEEE Applied Power Electronics Conference (APEC), IEEE, Austin, USA, 2005, pp. 875–881.
LibreCat
F. Schafmeister, C. Rytz, J. Kolar, in: Proc. 20th IEEE Applied Power Electronics Conference (APEC), IEEE, Austin, USA, 2005, pp. 875–881.
2005 | Journal Article | LibreCat-ID: 30311
Enhanced Control Scheme for Three-Phase, Three-Level Rectifiers at Partial Load
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, IEEE Transactions on Industrial Electronics 52 (2005) 719–726.
LibreCat
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, IEEE Transactions on Industrial Electronics 52 (2005) 719–726.
2004 | Conference Paper | LibreCat-ID: 30309
Novel Modulation Schemes for Conventional and Sparse Matrix Converters Facilitating Reactive Power Transfer Independent of Active Power Flow
F. Schafmeister, J. Kolar, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 2917–2923.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 2917–2923.
2004 | Conference Paper | LibreCat-ID: 30308
Enhanced Control Scheme for Three-Phase / Three-Level Rectifiers at Partial Load
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 207–213.
LibreCat
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 207–213.
2004 | Conference Paper | LibreCat-ID: 30310
Novel Hybrid Modulation Schemes Extending the Reactive Power Control Range of Conventional and Sparse Matrix Converters Operating at Maximum Output Voltage
F. Schafmeister, J. Kolar, in: Proc. 11th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Riga, Latvia, 2004.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. 11th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Riga, Latvia, 2004.
2003 | Conference Paper | LibreCat-ID: 30307
Novel Modulation Schemes Minimizing the Switching Losses of Sparse Matrix Converters
F. Schafmeister, J. Kolar, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Roanoke, VA, USA, 2003, pp. 2085–2090.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Roanoke, VA, USA, 2003, pp. 2085–2090.
2003 | Conference Paper | LibreCat-ID: 30300
Evaluation of 1200V-Si-IGBTs and 1300V-SiC-JFETs for Application in Three-Phase Very Sparse Matrix AC-AC Converter Systems
F. Schafmeister, S. Herold, J. Kolar, in: Proc. 18th IEEE Applied Power Electronics Conf. (APEC), IEEE, Miami Beach, USA, 2003, pp. 241–255.
LibreCat
F. Schafmeister, S. Herold, J. Kolar, in: Proc. 18th IEEE Applied Power Electronics Conf. (APEC), IEEE, Miami Beach, USA, 2003, pp. 241–255.
2003 | Journal Article | LibreCat-ID: 30306
Analytically Closed Calculation of the Conduction Losses of Three-Phase AC-AC Sparse Matrix Converters
F. Schafmeister, M. Baumann, J. Kolar, EPE Journal 13 (2003) 5–14.
LibreCat
F. Schafmeister, M. Baumann, J. Kolar, EPE Journal 13 (2003) 5–14.
2002 | Conference Paper | LibreCat-ID: 30302
Analytically Closed Calculation of the Conduction and Switching Losses of Three-Phase AC-AC Sparse Matrix Converters
F. Schafmeister, M. Baumann, J. Kolar, in: Proc. 10th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Cavtat & Dubrovnik, Croatia, 2002.
LibreCat
F. Schafmeister, M. Baumann, J. Kolar, in: Proc. 10th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Cavtat & Dubrovnik, Croatia, 2002.
2002 | Conference Paper | LibreCat-ID: 30299
Novel Three-Phase AC-DC-AC Sparse Matrix Converter
J. Kolar, M. Baumann, F. Schafmeister, H. Ertl, in: Proc. 17th IEEE Applied Power Electronics Conf. (APEC), IEEE, Dallas, USA, 2002, pp. 777–791.
LibreCat
J. Kolar, M. Baumann, F. Schafmeister, H. Ertl, in: Proc. 17th IEEE Applied Power Electronics Conf. (APEC), IEEE, Dallas, USA, 2002, pp. 777–791.
2002 | Conference Paper | LibreCat-ID: 30305
Analyse der Regelung einer permanenterregten Synchronmaschine bei Speisung durch einen dreiphasigen Sparse-Matrix-Konverter
F. Schafmeister, J. Kolar, in: Proc. Ansoft Inspiring Design Workshop, Stuttgart, Germany, 2002.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. Ansoft Inspiring Design Workshop, Stuttgart, Germany, 2002.
2001 | Conference Paper | LibreCat-ID: 30124
Active Common-Mode Voltage Cancellation for Three-Phase PWM Rectifier/Inverter Systems based on a New Topology
P. Ide, F. Schafmeister, N. Fröhleke, in: Proc. 16th IEEE Applied Power Electronics Conf. (APEC), IEEE, Anaheim, USA, 2001, pp. 201–207.
LibreCat
P. Ide, F. Schafmeister, N. Fröhleke, in: Proc. 16th IEEE Applied Power Electronics Conf. (APEC), IEEE, Anaheim, USA, 2001, pp. 201–207.
98 Publications
2024 | Conference Paper | LibreCat-ID: 54355
Analysis of Inverter Operation Modes of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive On-Board DC-DC
D. Urbaneck, J. Wiegard, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
LibreCat
D. Urbaneck, J. Wiegard, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
2024 | Conference Paper | LibreCat-ID: 54353
Study on Sample Geometries for Ferrite Characterisation in the MHz-Range
T. Piepenbrock, L. Keuck, S. Schachten, J. Böcker, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
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T. Piepenbrock, L. Keuck, S. Schachten, J. Böcker, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
2024 | Conference Paper | LibreCat-ID: 54354
Pitfalls and their Avoidability in the Double-Pulse Test
N. Förster, D. Urbaneck, B. Kohlhepp, D. Kübrich, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
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N. Förster, D. Urbaneck, B. Kohlhepp, D. Kübrich, F. Schafmeister, in: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, n.d.
2024 | Conference Paper | LibreCat-ID: 54357
FEM Modelling of Dimensional-Resonant Inductors for LLC Converters in MHz Range
T. Piepenbrock, F. Schafmeister, J. Böcker, in: SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia, n.d.
LibreCat
| Files available
| DOI
T. Piepenbrock, F. Schafmeister, J. Böcker, in: SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Ischia, n.d.
2024 | Conference Paper | LibreCat-ID: 54356
Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter
R. Unruh, J. Böcker, F. Schafmeister, in: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, Darmstadt, n.d.
LibreCat
R. Unruh, J. Böcker, F. Schafmeister, in: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, Darmstadt, n.d.
2023 | Conference Paper | LibreCat-ID: 48352
An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors
R. Unruh, J. Böcker, F. Schafmeister, in: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), IEEE, 2023.
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| DOI
| Download (ext.)
R. Unruh, J. Böcker, F. Schafmeister, in: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe), IEEE, 2023.
2023 | Conference Paper | LibreCat-ID: 54352
Advanced Synchronous Rectification for an IGBT-Based ZCS LLC Converter with High Output Currents for a 2 kW Automotive DC-DC Stage
D. Urbaneck, J. Böcker, F. Schafmeister, in: PCIM Europe 2023; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management , Nuremberg, 2023.
LibreCat
D. Urbaneck, J. Böcker, F. Schafmeister, in: PCIM Europe 2023; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management , Nuremberg, 2023.
2022 | Conference Abstract | LibreCat-ID: 30347
Compensation of LF Common-Mode Noise by the internal DC/DC-Stage for transformerless On-Board Chargers at Three- and Single-Phase Operation
F. Schafmeister, in: International Conference on Electric & Electronic in Hybrid and Electric Vehicles and Electric Energy Management (EEHE), Bamberg, Germany, n.d.
LibreCat
F. Schafmeister, in: International Conference on Electric & Electronic in Hybrid and Electric Vehicles and Electric Energy Management (EEHE), Bamberg, Germany, n.d.
2022 | Conference Paper | LibreCat-ID: 30349
An Open-Source Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing and Evaluating Power Transistors
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, Houston, TX, USA, n.d.
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N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, Houston, TX, USA, n.d.
2022 | Conference Paper | LibreCat-ID: 30350
Robust Hysteresis Control for LLC Resonant Converters Using a Fully Isolated Measurement Scheme
L. Keuck, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, n.d.
LibreCat
L. Keuck, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, n.d.
2022 | Conference Paper | LibreCat-ID: 30844
Comparative Evaluation of MVAC-LVDC SST and Hybrid Transformer Concepts for Future Datacenters
J. Huber, P. Wallmeier, R. Pieper, F. Schafmeister, J. Kolar, in: Proc. 9th IEEJ International Power Electronics Conference (IPEC), IEE Japan, Himeji, Japan, n.d.
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J. Huber, P. Wallmeier, R. Pieper, F. Schafmeister, J. Kolar, in: Proc. 9th IEEJ International Power Electronics Conference (IPEC), IEE Japan, Himeji, Japan, n.d.
2022 | Conference Paper | LibreCat-ID: 34176
Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%
R. Unruh, F. Schafmeister, J. Böcker, in: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), IEEE, 2022.
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R. Unruh, F. Schafmeister, J. Böcker, in: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), IEEE, 2022.
2022 | Conference Paper | LibreCat-ID: 35126
An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components
N. Förster, J. Hölscher, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.
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N. Förster, J. Hölscher, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.
2022 | Conference Paper | LibreCat-ID: 35125
An Open-Source Transistor Database and Toolbox as a Unified Software Engineering Tool for Managing and Evaluating Power Transistors
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2022.
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| DOI
N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2022.
2022 | Conference Paper | LibreCat-ID: 35127
An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components
N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022, pp. 1–10.
LibreCat
| DOI
N. Förster, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, in: PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2022, pp. 1–10.
2022 | Journal Article | LibreCat-ID: 44163
LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto
P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 37 (2022) 13413–13427.
LibreCat
| DOI
P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 37 (2022) 13413–13427.
2022 | Conference Paper | LibreCat-ID: 44164
Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer Ratio Applications
P. Rehlaender, B. Korthauer, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.11.
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P. Rehlaender, B. Korthauer, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.11.
2022 | Conference Paper | LibreCat-ID: 44161
Phase-Shift Modulation for Flying-Capacitor DC-DC Converters
P. Rehlaender, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, pp. 1–9.
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P. Rehlaender, F. Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 2022, pp. 1–9.
2021 | Conference Paper | LibreCat-ID: 29849
Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger
B. Strothmann, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
LibreCat
| DOI
B. Strothmann, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
2021 | Journal Article | LibreCat-ID: 29892
Interleaved Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer Ratio Applications
P. Rehlaender, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 36 (2021) 10065–10080.
LibreCat
| DOI
P. Rehlaender, F. Schafmeister, J. Böcker, IEEE Transactions on Power Electronics 36 (2021) 10065–10080.
2021 | Conference Paper | LibreCat-ID: 29895
Design and Analysis of a Regenerative Snubber for a 2.2 kW Active-Clamp Forward Converter with Low-Voltage Output
B. Korthauer, P. Rehlaender, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
LibreCat
| DOI
B. Korthauer, P. Rehlaender, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
2021 | Conference Paper | LibreCat-ID: 29850
Single-Phase Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger with Minimized DC-Link
B. Strothmann, G. Book, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2021, pp. 1–8.
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B. Strothmann, G. Book, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2021, pp. 1–8.
2021 | Conference Paper | LibreCat-ID: 29871
LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification of a 2 kW DC-DC Converter for EVs
D. Urbaneck, P. Rehlaender, J. Böcker, F. Schafmeister, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021.
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D. Urbaneck, P. Rehlaender, J. Böcker, F. Schafmeister, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021.
2021 | Conference Paper | LibreCat-ID: 30340
Comparison of unidirectional Three- and Four-Wire based Boost PFC-Rectifier Topologies for Non-Isolated Three-Phase EV On-Board Chargers under Common-Mode Aspects
M. Hagemeyer, P. Wallmeier, F. Schafmeister, J. Böcker, in: Proc. 36th IEEE Applied Power Electronics Conference (APEC), IEEE, Phoenix, AZ, USA, 2021, pp. 569–576.
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M. Hagemeyer, P. Wallmeier, F. Schafmeister, J. Böcker, in: Proc. 36th IEEE Applied Power Electronics Conference (APEC), IEEE, Phoenix, AZ, USA, 2021, pp. 569–576.
2021 | Newspaper Article | LibreCat-ID: 30348
Transformerless On-Board Chargers at Three- and Single-Phase Operation: Compensation of LF Common-Mode Noise by the Internal DC/DC-Stage
F. Schafmeister, Power System Design (PSD) Web Magazine (2021).
LibreCat
F. Schafmeister, Power System Design (PSD) Web Magazine (2021).
2021 | Conference Paper | LibreCat-ID: 29938
Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions
R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
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R. Unruh, J. Lange, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
2021 | Conference Paper | LibreCat-ID: 29893
Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances
P. Rehlaender, R. Unruh, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
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P. Rehlaender, R. Unruh, F. Schafmeister, J. Böcker, in: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2021.
2021 | Conference Paper | LibreCat-ID: 29899
Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration
P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
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P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister, J. Böcker, in: 23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), IEEE, 2021.
2020 | Conference Paper | LibreCat-ID: 29939
Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design
R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
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R. Unruh, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
2020 | Conference Paper | LibreCat-ID: 29894
Dual Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter
P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
LibreCat
| DOI
P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Böcker, in: 2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), IEEE, 2020.
2020 | Conference Paper | LibreCat-ID: 29896
A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode for Automotive Onboard DC-DC Conversion
P. Rehlaender, T. Grote, S. Tikhonov, S. Mario, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
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P. Rehlaender, T. Grote, S. Tikhonov, S. Mario, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
2020 | Conference Paper | LibreCat-ID: 29898
Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer Range Utilizing Asymmetric LLC Operation
T. Rüschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
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T. Rüschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
2020 | Conference Paper | LibreCat-ID: 29874
LLC Converter Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept Study for a 2.2 kW Automotive DC-DC Stage
D. Urbaneck, P. Rehlaender, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
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D. Urbaneck, P. Rehlaender, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020, 2020.
2020 | Conference Paper | LibreCat-ID: 30339
Practical Implementation and Verification of Simple-to-Implement Digital Current Observer for Half-Bridge Topologies
M.E. Ahmmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Digital Days), IEEE, Nuremberg, Germany, 2020.
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M.E. Ahmmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Digital Days), IEEE, Nuremberg, Germany, 2020.
2020 | Patent | LibreCat-ID: 30362
Apparatus and method for charging an electric battery vehicle
F. Schafmeister, (2020).
LibreCat
F. Schafmeister, (2020).
2020 | Conference Paper | LibreCat-ID: 29940
1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications
R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2020.
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R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2020.
2020 | Conference Paper | LibreCat-ID: 30001
Heat dissipation strategies for silicon carbide power SMDs and their use in different applications
B. Strothmann, T. Piepenbrock, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2020, pp. 1–7.
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B. Strothmann, T. Piepenbrock, F. Schafmeister, J. Böcker, in: PCIM Europe Digital Days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2020, pp. 1–7.
2020 | Conference Paper | LibreCat-ID: 29880
11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC
R. Unruh, F. Schafmeister, J. Böcker, in: 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), IEEE, 2020.
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R. Unruh, F. Schafmeister, J. Böcker, in: 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), IEEE, 2020.
2019 | Conference Paper | LibreCat-ID: 29999
Common Mode Analysis of Non-Isolated Three-Phase EV-Charger for Bi-Directional Vehicle-to-Grid Operation
B. Strothmann, F. Schafmeister, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2019, pp. 1–7.
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B. Strothmann, F. Schafmeister, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2019, pp. 1–7.
2019 | Conference Paper | LibreCat-ID: 30002
Pareto Design and Switching Frequencies for SiC MOSFETs Applied in an 11 kW Buck Converter for EV-Charging
B. Strothmann, F. Schafmeister, J. Böcker, in: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2019.
LibreCat
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B. Strothmann, F. Schafmeister, J. Böcker, in: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2019.
2019 | Conference Paper | LibreCat-ID: 16442
Analytical Modeling and Design of an Active Clamp Forward Converter Applied as a Single-Stage On-Board DC-DC Converter for EVs
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe 2019, 2019.
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P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: PCIM Europe 2019, 2019.
2019 | Conference Paper | LibreCat-ID: 29942
MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses
R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2019.
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R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker, in: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, VDE, 2019.
2019 | Conference Paper | LibreCat-ID: 30334
Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for an LLC Resonant Converter
L. Keuck, F. Schafmeister, J. Böcker, in: Proc. 34th IEEE Applied Power Electronics Conference (APEC), IEEE, Anaheim, CA, USA, 2019, pp. 1415–1422.
LibreCat
L. Keuck, F. Schafmeister, J. Böcker, in: Proc. 34th IEEE Applied Power Electronics Conference (APEC), IEEE, Anaheim, CA, USA, 2019, pp. 1415–1422.
2019 | Conference Paper | LibreCat-ID: 30335
Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for LLC Resonant Converter
L. Keuck, F. Schafmeister, J. Böcker, H. Jungwirth, M. Schmidhuber, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
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L. Keuck, F. Schafmeister, J. Böcker, H. Jungwirth, M. Schmidhuber, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30337
Novel Current Measurement Concept for Half Bridge Topologies based on simple-to-implement Digital Current Observer
M.E. Ahmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
LibreCat
M.E. Ahmad, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30336
LCC Resonant Converter for Piezoelectric Transducers with Phase Shift Control
S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
LibreCat
S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30338
Bidirectional Resonant Converter with Integrated Magnetics for On-Board Chargers
S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 770–774.
LibreCat
S. Bolte, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 770–774.
2019 | Conference Paper | LibreCat-ID: 30344
Interleaved Active Clamp Forward Converters as Single Stage On-Board DC-DC Converters for EVs – an Accurate Model and Design Considerations
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
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P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2019.
2019 | Conference Paper | LibreCat-ID: 30346
A PCB-Integrated Winding Using a Litz Structure for a Wireless Charging Coil
P. Rehlaender, T. Grote, S. Tikhonov, H. Njiende, F. Schafmeister, J. Böcker, P. Thiemann, in: Proc. 21st European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Genova, Italy, 2019, pp. 1–9.
LibreCat
P. Rehlaender, T. Grote, S. Tikhonov, H. Njiende, F. Schafmeister, J. Böcker, P. Thiemann, in: Proc. 21st European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Genova, Italy, 2019, pp. 1–9.
2019 | Conference Paper | LibreCat-ID: 30345
Analytical Topology Comparison for a Single-Stage On-Board EV-Battery Converter
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 2477–2482.
LibreCat
P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Vancouver, Canada, 2019, pp. 2477–2482.
2019 | Patent | LibreCat-ID: 30361
Current measurement circuit for TCM-PFC
R. Pohlmann, F. Schafmeister, (2019).
LibreCat
R. Pohlmann, F. Schafmeister, (2019).
2018 | Conference Paper | LibreCat-ID: 30331
Adaptive Frequency Control of DC-DC-Converters for Maximum Efficiency Using Artificial Neural Network
L. Keuck, A. Munir, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2018.
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L. Keuck, A. Munir, F. Schafmeister, J. Böcker, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2018.
2018 | Conference Paper | LibreCat-ID: 30332
Switching Loss Characterization of Wide Band-Gap Devices by an Indirect Identification Methodology
L. Keuck, N. Jabbar, F. Schafmeister, J. Böcker, in: Proc. 20th European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Riga, Latvia, 2018, pp. 1–10.
LibreCat
L. Keuck, N. Jabbar, F. Schafmeister, J. Böcker, in: Proc. 20th European Conference on Power Electronics and Applications (EPE-ECCE Europe), EPE, Riga, Latvia, 2018, pp. 1–10.
2018 | Conference Paper | LibreCat-ID: 30333
Coupled Inductor Design for Interleaved High-Current DC-DC Converters
M. Hagemeyer, F. Schafmeister, J. Böcker, in: Proc. International Conference on Electrical Machines and Systems (ICEMS), Korea IEE & IEE Japan, Jeju, South-Korea, 2018, pp. 2316–2321.
LibreCat
M. Hagemeyer, F. Schafmeister, J. Böcker, in: Proc. International Conference on Electrical Machines and Systems (ICEMS), Korea IEE & IEE Japan, Jeju, South-Korea, 2018, pp. 2316–2321.
2017 | Patent | LibreCat-ID: 30358
LLC Balancing
H. Figge, F. Schafmeister, T. Grote, (2017).
LibreCat
H. Figge, F. Schafmeister, T. Grote, (2017).
2017 | Patent | LibreCat-ID: 30363
Controller for an Inverter (PV Inverter: PV Self Consumption & symm. Output Control)
P. Wallmeier, F. Schafmeister, (2017).
LibreCat
P. Wallmeier, F. Schafmeister, (2017).
2015 | Conference Paper | LibreCat-ID: 30330
Today's Relevance of Digital Control in Server- and Telecom Power Supplies
F. Schafmeister, T. Grote, H. Figge, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2015.
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F. Schafmeister, T. Grote, H. Figge, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2015.
2015 | Patent | LibreCat-ID: 30359
Adaptable AC Input Phase Switching
P. Ide, F. Schafmeister, J. Richter, B. Pour, D. Spesser, D. Herke, (2015).
LibreCat
P. Ide, F. Schafmeister, J. Richter, B. Pour, D. Spesser, D. Herke, (2015).
2015 | Patent | LibreCat-ID: 30360
Resistorless Precharging
M. Hufnagel, F. Schafmeister, (2015).
LibreCat
M. Hufnagel, F. Schafmeister, (2015).
2014 | Conference Paper | LibreCat-ID: 30327
Adaptable AC Input Phase Switching for Optimum Utilization of Various Grid Configurations supplying Power Electronic Converters and EV/HEV On Board Chargers
F. Schafmeister, P. Ide, J. Richter, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
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F. Schafmeister, P. Ide, J. Richter, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
2014 | Conference Paper | LibreCat-ID: 30329
A Soft-Switching Interleaved DC-DC Converter with Integrated Magnetics for High Voltage Battery Charger
R. Li, H. Njiende, F. Schafmeister, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
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R. Li, H. Njiende, F. Schafmeister, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
2014 | Conference Paper | LibreCat-ID: 30328
Resistorless Precharging of Boost PFCs by Phase Angle Control of Thyristors
F. Schafmeister, M. Hufnagel, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
LibreCat
F. Schafmeister, M. Hufnagel, P. Ide, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2014.
2013 | Conference Paper | LibreCat-ID: 30326
Two-Phase Interleaving Configuration of the LLC Resonant Converter - Analysis and Experimental Evaluation
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Vienna, Austria, 2013, pp. 1392–1397.
LibreCat
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Vienna, Austria, 2013, pp. 1392–1397.
2013 | Patent | LibreCat-ID: 30357
Integrated Magnetic for DCM-PSFB Converter
H. Njiende, R. Li, F. Schafmeister, P. Ide, (2013).
LibreCat
H. Njiende, R. Li, F. Schafmeister, P. Ide, (2013).
2013 | Patent | LibreCat-ID: 30356
Resonant capacitor clamping circuit in resonant converter
H. Figge, F. Schafmeister, (2013).
LibreCat
H. Figge, F. Schafmeister, (2013).
2012 | Conference Paper | LibreCat-ID: 30325
Cost-Effective Implementation of a Digitally Controlled LLC Resonant Converter for Application in Server- and Telecom-PSUs
H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2012, pp. 1–8.
LibreCat
H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2012, pp. 1–8.
2012 | Journal Article | LibreCat-ID: 30324
Novel Hybrid Modulation Schemes Significantly Extending the Reactive Power Control Range of All Matrix Converter Topologies With Low Computational Effort
F. Schafmeister, J. Kolar, IEEE Transactions on Power Electronics 59 (2012) 194–210.
LibreCat
F. Schafmeister, J. Kolar, IEEE Transactions on Power Electronics 59 (2012) 194–210.
2012 | Book Chapter | LibreCat-ID: 30343
Matrixkonverter, Kapitel 3.8
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen , 3rd ed., Springer Vieweg Verlag, Berlin Heidelberg, 2012, pp. 195–296.
LibreCat
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen , 3rd ed., Springer Vieweg Verlag, Berlin Heidelberg, 2012, pp. 195–296.
2012 | Patent | LibreCat-ID: 30355
Digital Slope Compensation for Current Mode Control
F. Schafmeister, T. Grote, (2012).
LibreCat
F. Schafmeister, T. Grote, (2012).
2011 | Conference Paper | LibreCat-ID: 30323
Digital Control Strategy for Multi-Phase Interleaved Boundary Mode and DCM Boost PFC Converters
T. Grote, H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, Phoenix, AZ, USA, 2011, pp. 3186–3192.
LibreCat
T. Grote, H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, Phoenix, AZ, USA, 2011, pp. 3186–3192.
2011 | Conference Paper | LibreCat-ID: 30322
Overcurrent Protection for the LLC Resonant Converter with Improved Hold-Up Time
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. 26th IEEE Applied Power Electronics Conference (APEC), IEEE, Fort Worth, TX, USA, 2011, pp. 13–20.
LibreCat
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. 26th IEEE Applied Power Electronics Conference (APEC), IEEE, Fort Worth, TX, USA, 2011, pp. 13–20.
2011 | Patent | LibreCat-ID: 30354
Unidirektionaler AC-AC-Matrixkonverter mit Dreipunkt Ein- und Ausgangsstufe
F. Schafmeister, J. Kolar, (2011).
LibreCat
F. Schafmeister, J. Kolar, (2011).
2011 | Patent | LibreCat-ID: 30353
Verfahren zum spannungslosen Schalten der Pulswechselrichter-Ausgangsstufe eines indirekten Dreiphasen-AC-AC Matrixkonverters
F. Schafmeister, J. Kolar, (2011).
LibreCat
F. Schafmeister, J. Kolar, (2011).
2010 | Conference Paper | LibreCat-ID: 30321
Scalable Multi Phase Interleaved Boundary Mode PFC Concept enabling Energy- and Cost Efficient PSUs in the kW-Range
F. Schafmeister, X. Wang, T. Grote, P. Ide, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Bari, Italy, 2010, pp. 3831–3835.
LibreCat
F. Schafmeister, X. Wang, T. Grote, P. Ide, in: Proc. IEEE International Symposium on Industrial Electronics (ISIE), IEEE, Bari, Italy, 2010, pp. 3831–3835.
2009 | Conference Paper | LibreCat-ID: 30319
Semi-Digital Interleaved PFC Control with Optimized Light Load Efficiency
T. Grote, Fh. Figge, N. Fröhleke, W. Beulen, F. Schafmeister, P. Ide, J. Böcker, in: Proc. 24th IEEE Applied Power Electronics Conference (APEC), IEEE, Washington D.C., USA, 2009, pp. 1722–1727.
LibreCat
T. Grote, Fh. Figge, N. Fröhleke, W. Beulen, F. Schafmeister, P. Ide, J. Böcker, in: Proc. 24th IEEE Applied Power Electronics Conference (APEC), IEEE, Washington D.C., USA, 2009, pp. 1722–1727.
2009 | Conference Paper | LibreCat-ID: 30320
Adaptive Digital Slope Compensation for Peak Current Mode Control
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, San Jose, CA, USA, 2009, pp. 3523–3529.
LibreCat
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, San Jose, CA, USA, 2009, pp. 3523–3529.
2009 | Patent | LibreCat-ID: 30351
Verfahren zur Nutzung des ausgangsseitigen Blindstromes eines indirekten dreiphasen-Matrixkonverters zur Erzeugung von Eingangsblindstrom
F. Schafmeister, J. Kolar, (2009).
LibreCat
F. Schafmeister, J. Kolar, (2009).
2009 | Conference Paper | LibreCat-ID: 30517
Adaptive digital slope compensation for peak current mode control
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: 2009 IEEE Energy Conversion Congress and Exposition, IEEE, 2009.
LibreCat
| DOI
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: 2009 IEEE Energy Conversion Congress and Exposition, IEEE, 2009.
2008 | Conference Paper | LibreCat-ID: 30318
Paralleling of LLC Resonant Converters using Frequency Controlled Current Balancing
H. Figge, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
LibreCat
H. Figge, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
2008 | Conference Paper | LibreCat-ID: 30317
Semi-Digital Interleaved PFC Control
T. Grote, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
LibreCat
T. Grote, N. Fröhleke, F. Schafmeister, P. Ide, in: Proc. DPEC Seminar, Delta Electronics, Shanghai, China, 2008.
2008 | Book Chapter | LibreCat-ID: 30316
Matrixkonverter, Kapitel 3.8
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen, 2nd ed., Springer-Verlag, Berlin Heidelberg, 2008, pp. 188–289.
LibreCat
J. Kolar, F. Schafmeister, in: D. Schröder (Ed.), Lehrbuch Leistungselektronische Schaltungen, 2nd ed., Springer-Verlag, Berlin Heidelberg, 2008, pp. 188–289.
2007 | Patent | LibreCat-ID: 30352
Verfahren zur Minimierung der Schaltverluste eines quasi-direkten Dreiphasen-AC/AC-Pulsumrichters bei geringer Amplitude der Ausgangsspannungsgrundschwingung
J. Kolar, F. Schafmeister, (2007).
LibreCat
J. Kolar, F. Schafmeister, (2007).
2007 | Journal Article | LibreCat-ID: 30314
Novel Three-Phase AC–AC Sparse Matrix Converters
J. Kolar, F. Schafmeister, S. Round, H. Ertl, IEEE Transactions on Power Electronics 22 (2007) 1649–1661.
LibreCat
J. Kolar, F. Schafmeister, S. Round, H. Ertl, IEEE Transactions on Power Electronics 22 (2007) 1649–1661.
2007 | Dissertation | LibreCat-ID: 30315
Indirekte Sparse Matrix Konverter
F. Schafmeister, Indirekte Sparse Matrix Konverter, ETH Zürich, Zürich, Switzerland, 2007.
LibreCat
| Files available
F. Schafmeister, Indirekte Sparse Matrix Konverter, ETH Zürich, Zürich, Switzerland, 2007.
2006 | Journal Article | LibreCat-ID: 30313
Comparison of Performance and Realization Effort of a Very Sparse Matrix Converter to a Voltage DC Link PWM Inverter with Active Front End
S. Round, F. Schafmeister, J. Kolar, IEEJ Transactions of the Institute of Electrical Engineers of Japan 126-D (2006) 578–588.
LibreCat
S. Round, F. Schafmeister, J. Kolar, IEEJ Transactions of the Institute of Electrical Engineers of Japan 126-D (2006) 578–588.
2005 | Conference Paper | LibreCat-ID: 30312
Comparison of Performance and Realization Effort of a Very Sparse Matrix Converter to a Voltage DC Link PWM Inverter with Active Front End
S. Round, F. Schafmeister, E. Pereira, L. Serpa, J. Kolar, in: Proc. 5th IEEJ International Power Electronics Conference (IPEC), IEEJapan, Niigata, Japan, 2005.
LibreCat
S. Round, F. Schafmeister, E. Pereira, L. Serpa, J. Kolar, in: Proc. 5th IEEJ International Power Electronics Conference (IPEC), IEEJapan, Niigata, Japan, 2005.
2005 | Conference Paper | LibreCat-ID: 30301
Analytical Calculation of the Conduction and Switching Losses of the Conventional Matrix Converter and the (Very) Sparse Matrix Converter
F. Schafmeister, C. Rytz, J. Kolar, in: Proc. 20th IEEE Applied Power Electronics Conference (APEC), IEEE, Austin, USA, 2005, pp. 875–881.
LibreCat
F. Schafmeister, C. Rytz, J. Kolar, in: Proc. 20th IEEE Applied Power Electronics Conference (APEC), IEEE, Austin, USA, 2005, pp. 875–881.
2005 | Journal Article | LibreCat-ID: 30311
Enhanced Control Scheme for Three-Phase, Three-Level Rectifiers at Partial Load
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, IEEE Transactions on Industrial Electronics 52 (2005) 719–726.
LibreCat
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, IEEE Transactions on Industrial Electronics 52 (2005) 719–726.
2004 | Conference Paper | LibreCat-ID: 30309
Novel Modulation Schemes for Conventional and Sparse Matrix Converters Facilitating Reactive Power Transfer Independent of Active Power Flow
F. Schafmeister, J. Kolar, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 2917–2923.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 2917–2923.
2004 | Conference Paper | LibreCat-ID: 30308
Enhanced Control Scheme for Three-Phase / Three-Level Rectifiers at Partial Load
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 207–213.
LibreCat
P. Ide, F. Schafmeister, N. Fröhleke, H. Grotstollen, in: Proc. 35th IEEE Power Electronics Specialists Conference (PESC), IEEE, Aachen, Germany, 2004, pp. 207–213.
2004 | Conference Paper | LibreCat-ID: 30310
Novel Hybrid Modulation Schemes Extending the Reactive Power Control Range of Conventional and Sparse Matrix Converters Operating at Maximum Output Voltage
F. Schafmeister, J. Kolar, in: Proc. 11th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Riga, Latvia, 2004.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. 11th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Riga, Latvia, 2004.
2003 | Conference Paper | LibreCat-ID: 30307
Novel Modulation Schemes Minimizing the Switching Losses of Sparse Matrix Converters
F. Schafmeister, J. Kolar, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Roanoke, VA, USA, 2003, pp. 2085–2090.
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F. Schafmeister, J. Kolar, in: Proc. IEEE Annual Industrial Electronics Society Conference (IECON), IEEE, Roanoke, VA, USA, 2003, pp. 2085–2090.
2003 | Conference Paper | LibreCat-ID: 30300
Evaluation of 1200V-Si-IGBTs and 1300V-SiC-JFETs for Application in Three-Phase Very Sparse Matrix AC-AC Converter Systems
F. Schafmeister, S. Herold, J. Kolar, in: Proc. 18th IEEE Applied Power Electronics Conf. (APEC), IEEE, Miami Beach, USA, 2003, pp. 241–255.
LibreCat
F. Schafmeister, S. Herold, J. Kolar, in: Proc. 18th IEEE Applied Power Electronics Conf. (APEC), IEEE, Miami Beach, USA, 2003, pp. 241–255.
2003 | Journal Article | LibreCat-ID: 30306
Analytically Closed Calculation of the Conduction Losses of Three-Phase AC-AC Sparse Matrix Converters
F. Schafmeister, M. Baumann, J. Kolar, EPE Journal 13 (2003) 5–14.
LibreCat
F. Schafmeister, M. Baumann, J. Kolar, EPE Journal 13 (2003) 5–14.
2002 | Conference Paper | LibreCat-ID: 30302
Analytically Closed Calculation of the Conduction and Switching Losses of Three-Phase AC-AC Sparse Matrix Converters
F. Schafmeister, M. Baumann, J. Kolar, in: Proc. 10th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Cavtat & Dubrovnik, Croatia, 2002.
LibreCat
F. Schafmeister, M. Baumann, J. Kolar, in: Proc. 10th International Power Electronics and Motion Control Conference (EPE-PEMC), EPE, Cavtat & Dubrovnik, Croatia, 2002.
2002 | Conference Paper | LibreCat-ID: 30299
Novel Three-Phase AC-DC-AC Sparse Matrix Converter
J. Kolar, M. Baumann, F. Schafmeister, H. Ertl, in: Proc. 17th IEEE Applied Power Electronics Conf. (APEC), IEEE, Dallas, USA, 2002, pp. 777–791.
LibreCat
J. Kolar, M. Baumann, F. Schafmeister, H. Ertl, in: Proc. 17th IEEE Applied Power Electronics Conf. (APEC), IEEE, Dallas, USA, 2002, pp. 777–791.
2002 | Conference Paper | LibreCat-ID: 30305
Analyse der Regelung einer permanenterregten Synchronmaschine bei Speisung durch einen dreiphasigen Sparse-Matrix-Konverter
F. Schafmeister, J. Kolar, in: Proc. Ansoft Inspiring Design Workshop, Stuttgart, Germany, 2002.
LibreCat
F. Schafmeister, J. Kolar, in: Proc. Ansoft Inspiring Design Workshop, Stuttgart, Germany, 2002.
2001 | Conference Paper | LibreCat-ID: 30124
Active Common-Mode Voltage Cancellation for Three-Phase PWM Rectifier/Inverter Systems based on a New Topology
P. Ide, F. Schafmeister, N. Fröhleke, in: Proc. 16th IEEE Applied Power Electronics Conf. (APEC), IEEE, Anaheim, USA, 2001, pp. 201–207.
LibreCat
P. Ide, F. Schafmeister, N. Fröhleke, in: Proc. 16th IEEE Applied Power Electronics Conf. (APEC), IEEE, Anaheim, USA, 2001, pp. 201–207.