84 Publications

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[84]
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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[83]
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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[82]
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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[81]
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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[80]
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), 2021.
LibreCat | Download (ext.)
 
[79]
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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[78]
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
 
[77]
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
 
[76]
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.
LibreCat | DOI | Download (ext.)
 
[75]
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.
LibreCat | Download (ext.)
 
[74]
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.
LibreCat | Download (ext.)
 
[73]
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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[72]
2021 | Newspaper Article | LibreCat-ID: 30348 LibreCat
 
[71]
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.
LibreCat | DOI | Download (ext.)
 
[70]
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.
LibreCat | DOI | Download (ext.)
 
[69]
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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[68]
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, 2020.
LibreCat | Download (ext.)
 
[67]
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.
LibreCat | DOI | Download (ext.)
 
[66]
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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[65]
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.
LibreCat | Download (ext.)
 
[64]
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.
LibreCat | Download (ext.)
 
[63]
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.
LibreCat | Download (ext.)
 
[62]
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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[61]
2020 | Patent | LibreCat-ID: 30362 LibreCat
 
[60]
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.
LibreCat | Download (ext.)
 
[59]
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 | DOI
 
[58]
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.
LibreCat | Download (ext.)
 
[57]
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.
LibreCat | Download (ext.)
 
[56]
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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[55]
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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[54]
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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[53]
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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[52]
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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[51]
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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[50]
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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[49]
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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[48]
2019 | Patent | LibreCat-ID: 30361
Current measurement circuit for TCM-PFC
R. Pohlmann, F. Schafmeister, (2019).
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[47]
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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[46]
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.
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[45]
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.
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[44]
2017 | Patent | LibreCat-ID: 30358
LLC Balancing
H. Figge, F. Schafmeister, T. Grote, (2017).
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[43]
2017 | Patent | LibreCat-ID: 30363 LibreCat
 
[42]
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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[41]
2015 | Patent | LibreCat-ID: 30359
Adaptable AC Input Phase Switching
P. Ide, F. Schafmeister, J. Richter, B. Pour, D. Spesser, D. Herke, (2015).
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[40]
2015 | Patent | LibreCat-ID: 30360
Resistorless Precharging
M. Hufnagel, F. Schafmeister, (2015).
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[39]
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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[38]
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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[37]
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.
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[36]
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.
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[35]
2013 | Patent | LibreCat-ID: 30357
Integrated Magnetic for DCM-PSFB Converter
H. Njiende, R. Li, F. Schafmeister, P. Ide, (2013).
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[34]
2013 | Patent | LibreCat-ID: 30356 LibreCat
 
[33]
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.
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[32]
2012 | Journal Article | LibreCat-ID: 30324 LibreCat
 
[31]
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.
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[30]
2012 | Patent | LibreCat-ID: 30355
Digital Slope Compensation for Current Mode Control
F. Schafmeister, T. Grote, (2012).
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[29]
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.
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[28]
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.
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[27]
2011 | Patent | LibreCat-ID: 30354 LibreCat
 
 
[25]
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.
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[24]
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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[23]
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.
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[21]
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
 
[20]
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.
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[19]
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.
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[18]
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.
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[16]
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.
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[15]
2007 | Dissertation | LibreCat-ID: 30315
Indirekte Sparse Matrix Konverter
F. Schafmeister, Indirekte Sparse Matrix Konverter, ETH Zürich, Zürich, Switzerland, 2007.
LibreCat | Files available
 
[14]
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.
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[13]
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.
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[12]
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.
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[11]
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.
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[10]
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.
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[9]
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.
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[8]
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.
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[7]
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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[6]
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.
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[5]
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.
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[4]
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.
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[3]
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.
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[2]
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.
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[1]
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.
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84 Publications

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[84]
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
 
[83]
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.
LibreCat
 
[82]
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
 
[81]
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.
LibreCat
 
[80]
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), 2021.
LibreCat | Download (ext.)
 
[79]
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
 
[78]
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
 
[77]
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
 
[76]
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.
LibreCat | DOI | Download (ext.)
 
[75]
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.
LibreCat | Download (ext.)
 
[74]
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.
LibreCat | Download (ext.)
 
[73]
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.
LibreCat
 
[72]
2021 | Newspaper Article | LibreCat-ID: 30348 LibreCat
 
[71]
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.
LibreCat | DOI | Download (ext.)
 
[70]
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.
LibreCat | DOI | Download (ext.)
 
[69]
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
 
[68]
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, 2020.
LibreCat | Download (ext.)
 
[67]
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.
LibreCat | DOI | Download (ext.)
 
[66]
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.
LibreCat
 
[65]
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.
LibreCat | Download (ext.)
 
[64]
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.
LibreCat | Download (ext.)
 
[63]
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.
LibreCat | Download (ext.)
 
[62]
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.
LibreCat
 
[61]
2020 | Patent | LibreCat-ID: 30362 LibreCat
 
[60]
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.
LibreCat | Download (ext.)
 
[59]
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 | DOI
 
[58]
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.
LibreCat | Download (ext.)
 
[57]
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.
LibreCat | Download (ext.)
 
[56]
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
 
[55]
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.
LibreCat
 
[54]
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
 
[53]
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
 
[52]
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
 
[51]
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.
LibreCat
 
[50]
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
 
[49]
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
 
[48]
2019 | Patent | LibreCat-ID: 30361
Current measurement circuit for TCM-PFC
R. Pohlmann, F. Schafmeister, (2019).
LibreCat
 
[47]
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
 
[46]
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
 
[45]
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
 
[44]
2017 | Patent | LibreCat-ID: 30358
LLC Balancing
H. Figge, F. Schafmeister, T. Grote, (2017).
LibreCat
 
[43]
2017 | Patent | LibreCat-ID: 30363 LibreCat
 
[42]
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
 
[41]
2015 | Patent | LibreCat-ID: 30359
Adaptable AC Input Phase Switching
P. Ide, F. Schafmeister, J. Richter, B. Pour, D. Spesser, D. Herke, (2015).
LibreCat
 
[40]
2015 | Patent | LibreCat-ID: 30360
Resistorless Precharging
M. Hufnagel, F. Schafmeister, (2015).
LibreCat
 
[39]
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
 
[38]
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
 
[37]
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
 
[36]
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
 
[35]
2013 | Patent | LibreCat-ID: 30357
Integrated Magnetic for DCM-PSFB Converter
H. Njiende, R. Li, F. Schafmeister, P. Ide, (2013).
LibreCat
 
[34]
2013 | Patent | LibreCat-ID: 30356 LibreCat
 
[33]
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
 
[32]
2012 | Journal Article | LibreCat-ID: 30324 LibreCat
 
[31]
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
 
[30]
2012 | Patent | LibreCat-ID: 30355
Digital Slope Compensation for Current Mode Control
F. Schafmeister, T. Grote, (2012).
LibreCat
 
[29]
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
 
[28]
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
 
[27]
2011 | Patent | LibreCat-ID: 30354 LibreCat
 
 
[25]
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
 
[24]
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
 
[23]
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
 
 
[21]
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
 
[20]
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
 
[19]
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
 
[18]
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
 
 
[16]
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
 
[15]
2007 | Dissertation | LibreCat-ID: 30315
Indirekte Sparse Matrix Konverter
F. Schafmeister, Indirekte Sparse Matrix Konverter, ETH Zürich, Zürich, Switzerland, 2007.
LibreCat | Files available
 
[14]
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
 
[13]
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
 
[12]
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
 
[11]
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
 
[10]
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
 
[9]
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
 
[8]
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
 
[7]
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
 
[6]
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
 
[5]
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
 
[4]
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
 
[3]
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
 
[2]
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
 
[1]
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
 

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