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A novel phase-shift full-bridge converter is proposed in this paper. The converter topology presented here employs an auxiliary circuit consisting of a few passive components. With this auxiliary circuit, the full bridge converter can realize zero-voltage-switching (ZVS) independent of load and input voltage. The steady analysis and operating principle are demonstrated. Based on the analysis, a criterion...
The current-voltage-fed bidirectional dc-dc converter, which refers to a current-fed inverter at low voltage side and a voltage-fed inverter at high voltage side, can realize zero voltage switching (ZVS) for the switches with the use of phase-shift (PS) technology. However, the current-fed switches suffer from high voltage spike and high circulating conduction loss. In order to solve these problems,...
The current-voltage-fed bidirectional DC-DC converter can realize ZVS for the switches with the use of the phase-shift (PS) technology, however the current-fed switches suffer from high voltage spike and high circulating conduction losses. In order to solve these problems, a novel phase-shift plus PWM (PSP) control ZVS bi-directional DC-DC converter is proposed, which adopts active clamping branch...
A ZVS bi-directional DC-DC converter for high-low voltage conversion is analyzed in this paper. A novel control scheme adopting one port voltage regulated and another port current regulated is proposed to realize the energy conversion in bi-directional freely. A start-up circuit is presented for eliminating the surge current in boost mode. The operation characteristics and parameter design are analyzed...
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