대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1999년도 하계학술대회 논문집 F
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- Pages.2512-2514
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- 1999
보조회로도 영전압영전류스위칭하는 DC-DC 변환기
A Fully Soft Switched Full Bridge DC-DC converter
- Jeon, Seong-Jeub (Pukyong National University) ;
- Cho, Gyu-Hyeong (Korea Advanced Institute of Science and Technology)
- 발행 : 1999.07.19
초록
A new zero voltage and zero current switching(ZVZCS) full bridge DC-DC converter with transformer isolation is proposed for arc welding machines. The proposed DC-DC converter uses an auxiliary transformer to obtain ZCS for leading leg, which provides load current control capability even in short circuit condition. The auxiliary circuit also operates in ZVZCS mode. The power rating of the auxiliary transformer is about 10% of the main transformer. The operation is verified by experiments for 12[KW] prototype.
키워드