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98 Publications
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2024 | Conference Paper | LibreCat-ID: 54355
Urbaneck D, Wiegard J, Schafmeister F. Analysis of Inverter Operation Modes of an IGBT-Based ZCS LLC Converter for a 2 kW Automotive On-Board DC-DC. In: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
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2024 | Conference Paper | LibreCat-ID: 54353
Piepenbrock T, Keuck L, Schachten S, Böcker J, Schafmeister F. Study on Sample Geometries for Ferrite Characterisation in the MHz-Range. In: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
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2024 | Conference Paper | LibreCat-ID: 54354
Förster N, Urbaneck D, Kohlhepp B, Kübrich D, Schafmeister F. Pitfalls and their Avoidability in the Double-Pulse Test. In: PCIM Europe 2024; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management.
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2024 | Conference Paper | LibreCat-ID: 54357
Piepenbrock T, Schafmeister F, Böcker J. FEM Modelling of Dimensional-Resonant Inductors for LLC Converters in MHz Range. In: SPEEDAM 2024; 27th International Symposium on Power Electronics, Electrical Drives, Automation and Motion.
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2024 | Conference Paper | LibreCat-ID: 54356
Unruh R, Böcker J, Schafmeister F. Experimentally Verified 22 kW, 30 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter. In: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe.
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2023 | Conference Paper | LibreCat-ID: 48352
Unruh R, Böcker J, Schafmeister F. An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors. In: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe). IEEE; 2023. doi:10.23919/epe23ecceeurope58414.2023.10264313
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2023 | Conference Paper | LibreCat-ID: 54352
Urbaneck D, Böcker J, Schafmeister F. Advanced Synchronous Rectification for an IGBT-Based ZCS LLC Converter with High Output Currents for a 2 kW Automotive DC-DC Stage. In: PCIM Europe 2023; IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management . ; 2023.
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2022 | Conference Abstract | LibreCat-ID: 30347
Schafmeister F. Compensation of LF Common-Mode Noise by the internal DC/DC-Stage for transformerless On-Board Chargers at Three- and Single-Phase Operation. In: International Conference on Electric & Electronic in Hybrid and Electric Vehicles and Electric Energy Management (EEHE),.
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2022 | Conference Paper | LibreCat-ID: 30349
Förster N, Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. An Open-Source Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing and Evaluating Power Transistors. In: Proc. 37th IEEE Applied Power Electronics Conference (APEC). IEEE.
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2022 | Conference Paper | LibreCat-ID: 30350
Keuck L, Schafmeister F, Böcker J. Robust Hysteresis Control for LLC Resonant Converters Using a Fully Isolated Measurement Scheme. In: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM). IEEE.
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2022 | Conference Paper | LibreCat-ID: 30844
Huber J, Wallmeier P, Pieper R, Schafmeister F, Kolar J. Comparative Evaluation of MVAC-LVDC SST and Hybrid Transformer Concepts for Future Datacenters. In: Proc. 9th IEEJ International Power Electronics Conference (IPEC). IEE Japan.
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2022 | Conference Paper | LibreCat-ID: 35125
Förster N, Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. An Open-Source Transistor Database and Toolbox as a Unified Software Engineering Tool for Managing and Evaluating Power Transistors. In: 2022 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE; 2022. doi:10.1109/apec43599.2022.9773701
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2022 | Conference Paper | LibreCat-ID: 35127
Förster N, Piepenbrock T, Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. An Open-Source FEM Magnetics Toolbox for Power Electronic Magnetic Components. In: PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. ; 2022:1-10. doi:10.30420/565822103
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2022 | Journal Article | LibreCat-ID: 44163
Rehlaender P, Wallscheid O, Schafmeister F, Böcker J. LLC Resonant Converter Modulations for Reduced Junction Temperatures in Half-Bridge Mode and Transformer Flux in the On-the-Fly Morphing Thereto. IEEE Transactions on Power Electronics. 2022;37(11):13413-13427. doi:10.1109/tpel.2022.3180758
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2022 | Conference Paper | LibreCat-ID: 44164
Rehlaender P, Korthauer B, Schafmeister F, Böcker J. Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer Ratio Applications. In: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). ; 2022:P.1-P.11.
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2022 | Conference Paper | LibreCat-ID: 44161
Rehlaender P, Schafmeister F, Böcker J. Phase-Shift Modulation for Flying-Capacitor DC-DC Converters. In: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). ; 2022:1-9.
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2022 | Conference Paper | LibreCat-ID: 34176
Unruh R, Schafmeister F, Böcker J. Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%. In: 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). IEEE; 2022.
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2022 | Conference Paper | LibreCat-ID: 35126
Förster N, Hölscher J, Piepenbrock T, et al. An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components. In: 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe). ; 2022:P.1-P.9.
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2021 | Conference Paper | LibreCat-ID: 29849
Strothmann B, Schafmeister F, Böcker J. Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger. In: 2021 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE; 2021. doi:10.1109/apec42165.2021.9487462
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2021 | Journal Article | LibreCat-ID: 29892
Rehlaender P, Schafmeister F, Böcker J. Interleaved Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer Ratio Applications. IEEE Transactions on Power Electronics. 2021;36(9):10065-10080. doi:10.1109/tpel.2021.3067843
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