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In this paper, an isolated bi-directional DC/DC converter combined with dual half bridge converter and full-bridge is proposed. The conventional dual half bridge converter has problem of high voltage spike when switches are turned off. To solve this problem, the resonant capacitor and the resonant inductor are added to the proposed isolated bi-directional converter. And full-bridge converter is also...
In this paper, soft switching boost converter with ZVT (Zero Voltage Transition) method was proposed. Each switch of the proposed ZVT converter is operated under soft switching condition through using auxiliary resonant circuit such as resonant inductor, two resonant capacitors and auxiliary switches. Using the resonant device, the proposed converter is operated by zero-current switching and zero...
This paper proposed bidirectional DC-DC converter employing soft switching technique. Compared to conventional bidirectional converters, the main switches of proposed converter are operated without switching losses. Moreover, auxiliary switches have been implemented, and the switches are operated under zero current switching (ZCS) condition. To verify the validity of the proposed converter, mode analysis,...
In order to reduce size of bidirectional DC-DC converter, conventional topologies using hard switching method operate with high frequency. As switching frequency is getting higher, switching loss is increased. Conventionally an auxiliary circuit is implemented by using soft switching method in order to overcome this drawback,. The switch of the auxiliary circuit, however, is operated as hard switching...
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