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98 Publications
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2024 | Conference Paper | LibreCat-ID: 54355
Urbaneck, Daniel, Jan Wiegard, and Frank Schafmeister. “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. Nuremberg, n.d.
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2024 | Conference Paper | LibreCat-ID: 54353
Piepenbrock, Till, Lukas Keuck, Sebastian Schachten, Joachim Böcker, and Frank Schafmeister. “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. Nuremberg, n.d.
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2024 | Conference Paper | LibreCat-ID: 54354
Förster, Nikolas, Daniel Urbaneck, Benedikt Kohlhepp, Daniel Kübrich, and Frank Schafmeister. “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. Nuremberg, n.d.
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2024 | Conference Paper | LibreCat-ID: 54357
Piepenbrock, Till, Frank Schafmeister, and Joachim Böcker. “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. Ischia, n.d.
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2024 | Conference Paper | LibreCat-ID: 54356
Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “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. Darmstadt, n.d.
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2023 | Conference Paper | LibreCat-ID: 48352
Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “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. https://doi.org/10.23919/epe23ecceeurope58414.2023.10264313.
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2023 | Conference Paper | LibreCat-ID: 54352
Urbaneck, Daniel, Joachim Böcker, and Frank Schafmeister. “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 . Nuremberg, 2023.
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2022 | Conference Abstract | LibreCat-ID: 30347
Schafmeister, Frank. “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),. Bamberg, Germany, n.d.
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2022 | Conference Paper | LibreCat-ID: 30349
Förster, Nikolas, Philipp Rehlaender, Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “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). Houston, TX, USA: IEEE, n.d.
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2022 | Conference Paper | LibreCat-ID: 30350
Keuck, Lukas, Frank Schafmeister, and Joachim Böcker. “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). Nuremberg, Germany: IEEE, n.d.
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2022 | Conference Paper | LibreCat-ID: 30844
Huber, Jonas, Peter Wallmeier, Ralf Pieper, Frank Schafmeister, and Johann Kolar. “Comparative Evaluation of MVAC-LVDC SST and Hybrid Transformer Concepts for Future Datacenters.” In Proc. 9th IEEJ International Power Electronics Conference (IPEC). Himeji, Japan: IEE Japan, n.d.
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2022 | Conference Paper | LibreCat-ID: 35125
Förster, Nikolas, Philipp Rehlaender, Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “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. https://doi.org/10.1109/apec43599.2022.9773701.
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2022 | Conference Paper | LibreCat-ID: 35127
Förster, Nikolas, Till Piepenbrock, Philipp Rehlaender, Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “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, 1–10, 2022. https://doi.org/10.30420/565822103.
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2022 | Journal Article | LibreCat-ID: 44163
Rehlaender, Philipp, Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “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 37, no. 11 (2022): 13413–27. https://doi.org/10.1109/tpel.2022.3180758.
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2022 | Conference Paper | LibreCat-ID: 44164
Rehlaender, Philipp, Bastian Korthauer, Frank Schafmeister, and Joachim Böcker. “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), P.1-P.11, 2022.
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2022 | Conference Paper | LibreCat-ID: 44161
Rehlaender, Philipp, Frank Schafmeister, and Joachim Böcker. “Phase-Shift Modulation for Flying-Capacitor DC-DC Converters.” In 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), 1–9, 2022.
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2022 | Conference Paper | LibreCat-ID: 34176
Unruh, Roland, Frank Schafmeister, and Joachim Böcker. “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, Nikolas, Jonas Hölscher, Till Piepenbrock, Philipp Rehlaender, Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “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), P.1-P.9, 2022.
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2021 | Conference Paper | LibreCat-ID: 29849
Strothmann, Benjamin, Frank Schafmeister, and Joachim Böcker. “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. https://doi.org/10.1109/apec42165.2021.9487462.
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2021 | Journal Article | LibreCat-ID: 29892
Rehlaender, Philipp, Frank Schafmeister, and Joachim Böcker. “Interleaved Single-Stage LLC Converter Design Utilizing Half- and Full-Bridge Configurations for Wide Voltage Transfer Ratio Applications.” IEEE Transactions on Power Electronics 36, no. 9 (2021): 10065–80. https://doi.org/10.1109/tpel.2021.3067843.
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