Title :
Zero-Voltage and Zero-Current Switching Full-Bridge DC–DC Converter With Auxiliary Transformer
Author :
J. Dudrik;P. Spanik;N.D. Trip
Author_Institution :
Dept. of Electr. Drives & Mechatronics, Tech. Univ. of Kosice
Abstract :
A novel zero-voltage and zero-current switching (ZVZCS) full-bridge phase-shifted pulsewidth modulation (PWM) converter using insulated gate bipolar transistors (IGBTs) with auxiliary transformer is proposed to improve the properties of the previously presented converters. ZVZCS for all power switches is achieved for full load range from no-load to short circuit by adding active energy recovery snubber and auxiliary circuits. The principle of operation is explained and analyzed and experimental results are presented. The features and design considerations of the converter are verified on a 3-kW, 50-kHz IGBT based experimental circuit
Keywords :
"Zero current switching","Switching converters","Pulse width modulation converters","Insulated gate bipolar transistors","Circuits","Power transformer insulation","Pulse width modulation","Pulse transformers","Phase modulation","Snubbers"
Journal_Title :
IEEE Transactions on Power Electronics
DOI :
10.1109/TPEL.2006.880285
