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It is usually considered that if the ZVS performance of phase-shift (PS) ZVS full-bridge (FB) converter can be achieved with the help of auxiliary circuits at light load, then the ZVS performance can be achieved naturally at heavy load. However under certain circumstance, the drain to source capacitor will be recharged during the commutating period. Therefore, the ZVS performance of lagging leg may...
A novel single-phase rectifier is introduced in this paper, which consists of a front-end full-bridge diode rectifier followed by a ZVS boost active clamping converter. By using an auxiliary switch and a capacitor, ZVS for all switches is achieved without any additional magnetic component. To eliminate the voltage ringing across the main rectifier diode, a small diode is added. Applying the proposed...
This paper presents a new circuit topology of DC bus line switch-assisted full-bridge soft switching PWM inverter type DC-DC converter. The proposed power converter is composed of typical voltage source H full-bridge high frequency PWM inverter with a high frequency transformer link in addition to a single DC bus line side power semiconductor switching device for PWM control scheme and a capacitive...
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