全桥移相控制零电压开关准谐振变换器的研究

The Research of Zero-voltage-switching Quasi-resonant-converter with Full-bridge Phase-shifting

本文介绍了一种全桥移相控制零电压开关准谐振变换器,描述了该DC-DC变换器的工作原理和电路特性。同时介绍了一种移相谐振控制器UC3875,并给出了一个输入400V、输出48VDC/10.5A/500W电路的实例及其相应的电流和电压波形。

A zero-voltage-switching quasi-resonant-converter with full-bridge phase-shifting interpreted in this article.It describe the working principle and the circuit characteristic of this DC-DC converter. A kind of phase-shifting resonant controller UC3875 introduced in this article at the same time. In this article,it includes a sample with 400V input,48VDC/10.5A/500W output. The voltage waveform and the current waveform related with this sample gave as well as.