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@inproceedingsUnruh_Schafmeister_Böcker_2022, title=Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%, booktitle=24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe), publisher=IEEE, author=Unruh, Roland and Schafmeister, Frank and Böcker, Joachim, year=2022 

@inproceedingsUnruh_Lange_Schafmeister_Böcker_2021, title=Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions, DOI=https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542, booktitle=23rd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), publisher=IEEE, author=Unruh, Roland and Lange, Jarren and Schafmeister, Frank and Böcker, Joachim, year=2021 

@inproceedingsUnruh_Schafmeister_Böcker_2020, title=Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design, DOI=10.23919/epe20ecceeurope43536.2020.9215687, booktitle=2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), publisher=IEEE, author=Unruh, Roland and Schafmeister, Frank and Böcker, Joachim, year=2020 

@inproceedingsUnruh_Schafmeister_Fröhleke_Böcker_2020, title=1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications, booktitle=PCIM Europe digital days 2020; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, publisher=VDE, author=Unruh, Roland and Schafmeister, Frank and Fröhleke, Norbert and Böcker, Joachim, year=2020 

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@inproceedingsBo_Ting_Hemsel_2008, title=A simple pre-stress estimating method of langevin transducers, DOI=10.1109/SPAWDA.2008.4775801, booktitle=Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on, author=Bo, Fu and Ting, Li and Hemsel, Tobias, year=2008, pages=324–327 

@inproceedingsUribe_Stroop_Hemsel_Wallaschek_2008, title=Development of a biomedical tissue differentiation system using piezoelectric actuators, DOI=10.1109/FREQ.2008.4622963, booktitle=Frequency Control Symposium, 2008 IEEE International, author=Uribe, David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg, year=2008, pages=91–94 

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