2024

­­B. H. Zacher, K. Franck and C. Schumann, "ZETA Based DC-Link Current Source," 2024 Energy Conversion Congress & Expo Europe (ECCE Europe), Darmstadt, Germany, 2024, pp. 1-7, doi: 10.1109/ECCEEurope62508.2024.10751988.

K. Franck, B. H. Zacher, S. Holzmann, M. Wagner and C. Schumann, "Low THD Current Control of Nonlinear Load Characteristics Using a Single Phase Dual ZETA Inverter," 2024 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 2024, pp. 2342-2347, DOI: 10.1109/APEC48139.2024.10509098.

M. Wagner, S. Holzmann, C. Schumann, "Lebensdauerbetrachtung von schnellschaltenden Galliumnitrid-Transistoren in verschiedenen Last- und Temperaturprofilen", HAW Forschungstag 2024 Rheinland-Pfalz, Tagungsband, Hrsg. S. Eder et.al., pp. 75-78.

2023

B. H. Zacher, A. Bauer, K. Franck and C. Schumann, "48 V Current Source Inverter with Bidirectional GaN eHEMT Switches for Low Inductance Machine Drives," 2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe), Aalborg, Denmark, 2023, pp. 1-9, DOI: 10.23919/EPE23ECCEEurope58414.2023.10264640.

S. Holzmann, B. H. Zacher and C. Schumann, "Reduction of Parasitic Effects in PCB Connection Paths to Improve the Switching Performance of GaN eHEMT," PCIM Europe 2023; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany, 2023, pp. 1-6, DOI: 10.30420/566091285.

A. Bauer, B. H. Zacher, S. Urschel and C. Schumann, "Multilayered PCB-Based Axial Flux Motor Windings with Thermal VIAs to Enhance Thermal Utilization," IECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society, Singapore, Singapore, 2023, pp. 1-6, DOI:10.1109/IECON51785.2023.10311898.

2022

B. H. Zacher and C. Schumann, "Fast Switching Planar Inductance Current Source ZETA Converter with Integrated Common Mode Filter," 2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe), 2022, pp. 1-8.

A. Bauer, B. H. Zacher, C. Schumann and S. Urschel, "Challenges and Design Aspects of Power Electronically Fed PCB Motor Windings," Innovative Kleinantriebs- und Kleinmotorentechnik IKMT 2022.

A. Bauer, C. Schumann and S. Urschel, "Analytical Calculation of Eddy Current related Losses and Parasitic Torque in PCB Windings," 2022 International Conference on Electrical Machines (ICEM), 2022, pp. 1750-1756, DOI: 10.1109/ICEM51905.2022.9910682.
Gewinner des ICEM Jan Melkebeek Best Poster Award

2021

A. Bauer ; B. H. Zacher ; C. Schumann: Enhanced Cooling of Multilayer PCB Motor Windings Using Thermal Vias, IN: IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society, Oct. 2021, DOI: 10.1109/IECON48115.2021.9589724

2014

C. Schumann ; T. Müller ; E. Stein ; M. Pacas: Axial-flux-machine with an ironless fractional slot winding, In: IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, S. 424-430, Oct, 2014, DOI: 10.1109/IECON.2014.7048535  

C. Schumann ; T. Müller ; E. Stein ; M. Pacas: Analytical calculation of the induced EMF in PM-machines with arbitrary arranged surface mounted magnets using the winding function theory, In: 2014 International Conference on Electrical Machines (ICEM), S. 994-1000, Sep., 2014, DOI: 10.1109/ICELMACH.2014.6960302

T. Müller ; C. Schumann ; E. Stein ; M. Pacas: Calculating the steady-state torque of PM machines using the cross-correlation of stator and rotor fields, In: 2014 International Conference on Electrical Machines (ICEM), S. 705-710, Sep., 2014, DOI: 10.1109/ICELMACH.2014.6960258

2012

C. Schumann ; E. Stein ; M. Pacas ; O. Simon: TSFCIM - Ein Servoantriebskonzept ohne Permanentmagnete, In: SPS/IPC/DRIVES - Internationale Fachmesse und Kongress, Tagungsband, S. 155-163, VDE Verlag, 2012