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A bidirectional DC-DC converter (BDC) with a new CLLC-type resonant tank, which features zero-voltage switching (ZVS) for the input inverting choppers and zero-current switching (ZCS) for the output rectifier switches, regardless of the direction of the power flow, is proposed in this paper. Possessing the very optimal ZVS +ZCS soft-switching feature, this proposed converter will have a minimized...
To overcome the complicated strategy and circuit implementation issue for control of the conventional ZCS converter to derive the driving signal for the auxiliary switch, a novel ZCT cell which greatly simplifiers the control strategy by directly extending the duty duration to be the whole off-time of the primary switch is proposed in this paper, where the control circuit is implemented only by a...
In this paper, the general operation principles for the existing control type ZVT PWM dual switch forward converters which possess the same conversion ration are reviewed and their advantages and drawbacks are discussed in detail. Then the control type ZVS techniques of active-clamp and resonant reset are extended to the other dual switch forward converters by whether employing the input for resetting...
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