Soft Switching Full-Bridge PWM DC/DC Converter Using Secondary Snubber

oleh: Jaroslav Dudrik, Vladimír Ruščin, Marcel Bodor, Daniel Nistor Trip, Pavol Špánik

Format: Article
Diterbitkan: Editura Universităţii din Oradea 2009-05-01

Deskripsi

A novel full-bridge PWM DC/DCconverter with controlled secondary side rectifier usingsecondary snubber is presented in this paper.Limitation of the circulating current as well as softswitching for all power switches of the inverter isachieved for full load range from no-load to shortcircuit by using controlled rectifier and snubber on thesecondary side. Phase shift PWM control strategy isused for the converter. The principle of operation isexplained and analyzed and the experimental resultson a 1kW, 50 kHz laboratory model of the converterare presented.