Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2005.11a
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- Pages.251-255
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- 2005
A New Soft Switching Technique for Bi-directional Power Flow, Full-bridge DC-DC Converter
양방향 풀-브릿지 DC-DC 컨버터를 위한 새로운 소프트 스위칭 기법
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Song, Y.J.
(Korea Institute of Energy Research)
;
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Park, S.I.
(Korea Institute of Energy Research)
;
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Jeong, H.G.
(Korea Institute of Energy Research)
;
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Han, S.B.
(Korea Institute of Energy Research)
;
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Jung, B.M.
(Korea Institute of Energy Research)
- Published : 2005.11.04
Abstract
This paper proposes a new soft switching technique for a phase-shift controlled bi-directional DC-DC converter. The described converter employs a low profile high frequency transformer and two active full-bridge converters for bidirectional power flow capability. A new soft switching technique is proposed, which guarantees soft switching over wide range (no load to full load) without any additional circuit components. In the proposed switching scheme, the switch pairs in the diagonal position of the converter each are turned on/off simultaneously by the switching signals with a variable duty ratio depending on the phase shift amount, and the converter is operated without freewheeling interval.
Keywords