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A Study on High Efficiency Boost DC-DC Converter of Discontinuous Current Mode Control  

Kwak Dong-Kurl (한중대공대 전기전자공학과)
Kim Choon-Sam (삼척대 공대 컴퓨터제어계측공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.54, no.9, 2005 , pp. 431-436 More about this Journal
Abstract
This paper studies a novel boost DC-DC converter operated high efficiency for discontinuous current mode (DCM) control. The converter worked in DCM eliminates the complicated circuit control requirement, reduces a number of components, and reduces the used reactive components size. In the general DCM converter, the switching devices are turned-on the zero current switching (ZCS), and the switching devices must be switched-off at a maximum reactor current. To achieve the zero voltage switching (ZVS) at the switching turn-off, the proposed converter is constructed by using a new loss-less snubber circuit. Soft-switched operation of the proposed boost converter is verified by digital simulation and experimental results. A new boost converter achieves the soft-switching for all switching devices without increasing their voltage and current stresses. The result is that the switching loss is very low and the efficiency of boost DC-DC converter is high.
Keywords
Boost Converter; Discontinuous Current Mode; Soft Switching; Loss-Less Snubber Circuit;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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