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This paper proposes a digital control based bidirectional DC/DC converter on the secondary side of which an active clamp branch is added. In the buck mode adopting the ZVZCS phase-shifted full-bridge scheme, the active clamp branch realizes the ZVS and ZCS respectively on the leading and lagging legs and effectively restrains the spurious resonance on the secondary side. In the isolated boost mode,...
In this paper, a center-tapped transformer based bidirectional dc-dc converter with full ZVS operating range is proposed for wide input voltage range applications. The soft switching analysis in different modes is carried out and a simple and effective control strategy, allowing extending the practical ZVS to the whole operating range, is proposed. By dynamically adjusting the phase-shift angle between...
This paper proposes an inductorless full-bridge DC-DC converter for step up applications. The proposed converter can achieve ZVS of all switches by utilizing transformer leakage inductance and MOSFET output capacitance. Owing to negligible duty cycle loss and use of voltage doubler, the proposed converter has greatly reduced turn ratio, which makes this voltage-fed converter viable for high step up...
A new zero-voltage switching (ZVS) pulse width modulation (PWM) DC-DC converter using MOSFETs is proposed in this paper. The proposed converter achieves ZVS with reduction in voltage and current stresses across switches to improve the efficiency by minimizing the switching and conduction losses. The predicted operation principles and theoretical analysis of the presented converter are verified with...
A new zero-voltage switching (ZVS) pulse width modulation (PWM) DC-DC converter using MOSFETs is proposed in this paper. The proposed converter achieves ZVS with reduction in voltage and current stresses across switches to improve the efficiency by minimizing the switching and conduction losses. The predicted operation principles and theoretical analysis of the presented converter are verified with...
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