Title :
An improved high efficiency full bridge ZVS DC-DC converter with overall load range soft switching
Author :
Wu, Xinke ; Chen, Huiming ; Zhang, Junming ; Qian, Zhaoming
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
This paper propose an improved full bridge DC-DC converter, which can achieve ZVS with wide input voltage range and load range. By adding two clamp diodes in the primary side of the transformer, the voltage ringing across rectifier diodes is reduced. Therefore Schottky diodes can be employed and high efficiency is achieved. A 1.2 kW/105 kHz experimental circuit was made with an efficiency higher than 95%.
Keywords :
DC-DC power convertors; Schottky diodes; rectifiers; switching convertors; 1.2 kW; 105 kHz; Schottky diodes; clamp diodes; full bridge ZVS DC-DC converter; load range soft switching; rectifier diodes; voltage range; Bridge circuits; Clamps; DC-DC power converters; Inductance; Inductors; Rectifiers; Schottky diodes; Switches; Switching converters; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual
Print_ISBN :
0-7803-8399-0
DOI :
10.1109/PESC.2004.1355665
