Projects per year
Abstract
The switching losses occurring between full soft-switching and hard-switching are described inadequately, and previous attempts of quantifying incomplete zero-voltage switching losses are topology specific and not applicable for any general half-bridge circuit. The ability to quantity these losses is crucial to optimize the converter efficiency across a wide operating range. This paper proposes a general method for accurately estimating the incomplete zero-voltage switching dynamics and losses in half-bridge converters, including the non-linear output capacitance of the semiconductors. The charge balance during the switching transition period is solved to determine the depth of incomplete zero-voltage switching, which can be used to predict the switching losses. The method is verified experimentally, and is shown to be able to predict the depth of incomplete zero-voltage switching accurately, which can be used to calculate the related losses.
Original language | English |
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Title of host publication | 2023 IEEE 10th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2023 |
Publisher | IEEE |
Publication date | 2023 |
Article number | 10382222 |
ISBN (Print) | 9798350337143 |
ISBN (Electronic) | 9798350337136 |
DOIs | |
Publication status | Published - 2023 |
Series | IEEE Workshop on Wide Bandgap Power Devices & Applications (WiPDA) |
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ISSN | 2641-8274 |
Keywords
- Zero voltage switching (ZVS)
- Wide band gap devices
- incomplete ZVS
- Semiconductor
- Half bridge (HB)
- Switching losses
Fingerprint
Dive into the research topics of 'Accurate Prediction of Incomplete Zero-Voltage Switching Dynamics and Losses'. Together they form a unique fingerprint.-
Power Density Optimization of High Efficiency Wide-Band Gap Semiconductor Power Modules using Digital Design
Zäch, M. R., Munk-Nielsen, S., Jørgensen, A. B. & Beczkowski, S. M.
01/09/2022 → 31/08/2025
Project: PhD Project
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CoDE: Center of Digitalized Electronics (CoDE)
Munk-Nielsen, S., Jørgensen, A. B., Uhrenfeldt, C., Beczkowski, S. M., Ahmad, F., Meinert, J. D., Kubulus, P. P., Takahashi, M., Sun, Z., Wang, R., Gao, Y., Zäch, M. R., Meyer, S. & Steffensen, B.
01/01/2021 → 31/12/2025
Project: Research
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HEART: Super High Efficiency Fast EV charger with energy storage and Grid support functionality: a heart of the future green transport
Munk-Nielsen, S., Beczkowski, S. M., Uhrenfeldt, C., Iov, F., Zhao, H., Luan, S. & Steffensen, B.
24/03/2021 → 23/03/2024
Project: Research