Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.04a
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- Pages.183-187
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- 2005
A Study on the Zero-Voltage-Switching Three-Level DC/DC Converter without Primary Freewheeling Diodes
1차측 환류 다이오드를 제거한 ZVS Three-Level DC/DC 컨버터에 관한 연구
- Chon, Yong-Jin (Dongguk University) ;
- Kim, Yong (Dongguk University) ;
- Bae, Jin-Yong (Dongguk University) ;
- Lee, Eun-Young (Daelim College) ;
- Choi, Geun-Soo (DGI)
- Published : 2005.04.28
Abstract
A Zero-Voltage-Switching(ZVS) Three-Level Converter realizes ZVS for the switches with the use of the leakage inductance(or external resonant inductance) and the output capacitors of the switches, however; the rectifier diodes suffer from recovery which results in oscillation and voltage spike. In order to solve this problem, this paper proposes a novel ZVS Three-Level converter, which introduces two clamping diodes to the basic Three-Level converter to eliminate the oscillation and clamp the rectified voltage to the reflected input voltage, the proposed ZVS Three-Level converter can be simplified by removing the two freewheeling diodes.
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