Title :
Soft-Switching Full-Bridge PWM DC–DC Converter With Controlled Output Rectifier and Secondary Energy Recovery Turn-Off Snubber
Author :
Dudrik, Jaroslav ; Bodor, Marcel ; Pastor, Marek
Author_Institution :
Dept. of Electr. Eng. & Mechatron., Tech. Univ. of Kosice, Kosice, Slovakia
Abstract :
A zero-voltage and zero-current switching full-bridge pulse-width modulated dc-dc converter with controlled secondary-side rectifier using a novel nondissipative energy recovery turn-off snubber is presented in this paper. Using a controlled rectifier, a turn-off snubber, and an innovative control algorithm, the circulating current of the converter is eliminated and soft switching for all power switches of the inverter is achieved for full-load range from no-load to short circuit. The principle of converter operation is explained and analyzed and the experimental results on a 4.5 kW, 100 kHz laboratory model of the converter are presented.
Keywords :
DC-DC power convertors; snubbers; zero current switching; zero voltage switching; controlled output rectifier; controlled secondary-side rectifier; full-bridge pulse-width modulated dc-dc converter; innovative control algorithm; secondary energy recovery turn-off snubber; soft-switching full-bridge PWM dc-dc converter; zero-current switching; zero-voltage switching; Capacitors; Control systems; Inductance; Power transformers; Rectifiers; Snubbers; Transistors; Controlled output rectifier; dc–dc converter; snubber circuit; soft switching; zero-voltage zero-current switching (ZVZCS);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2013.2293537
