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1. (WO2017188741) FORWARD-FLYBACK BUS CONVERTER

Pub. No.:    WO/2017/188741    International Application No.:    PCT/KR2017/004468
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Thu Apr 27 01:59:59 CEST 2017
IPC: H02M 3/335
H02M 1/08
H02J 7/00
Applicants: M2 POWER CO.,LTD.
엠투파워 주식회사
Inventors: HONG, Sung Soo
홍성수
JUNG, Kwang Soon
정광순
CHOO, Jae Ho
추재호
Title: FORWARD-FLYBACK BUS CONVERTER
Abstract:
The present invention relates to a forward-flyback bus converter having an active clamping circuit applied thereto such that the same can be connected to a half-bridge or full-bridge structure and used, the forward-flyback bus converter comprising: a main switch portion having a plurality of main switches connected in a full-bridge or half-bridge type; a primary-side winding portion that is connected to the main switch portion and has a first primary winding and a second primary winding connected in series; a secondary-side winding portion electromagnetically coupled to the primary-side winding portion; a synchronous rectification switch portion that can be connected to the secondary-side winding portion through a high side or a low side; and a clamping switch portion connected to the secondary-side winding portion on the basis of the position in which the synchronous rectification switch portion is connected, wherein, when the synchronous rectification switch portion is connected through the high side, the clamping switch portion is connected to the secondary-side winding portion through a common anode, and, when the synchronous rectification switch portion is connected through the low side, the clamping switch portion is connected to the secondary-side winding portion through a common cathode.