Title :
Reduction of power loss in voltage resonant converter
Author :
Kitajima, Tokimune ; Shinada, Yohsuke ; Kobayashi, Tadashi
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
A forward type voltage resonant converter with a MOSFET synchronous rectifier was investigated to reduce the forward voltage drop of rectifier diodes. A novel current snubber circuit is proposed for the MOSFET synchronous rectifier to reduce reverse recovery losses of the MOSFET´s body diode. A multioutput voltage resonant converter was investigated. A secondary current mode controller is proposed for the auxiliary output to perform precise regulation while the main output is regulated by controlling the switching frequency. Experimental results are included
Keywords :
losses; power convertors; rectifying circuits; MOSFET synchronous rectifier; current snubber circuit; forward type voltage resonant converter; multioutput convertor; power loss reduction; rectifier diodes; reverse recovery losses; secondary current mode controller; Circuit faults; Inductance; Magnetic resonance; RLC circuits; Rectifiers; Schottky diodes; Snubbers; Switches; Switching frequency; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 1991. INTELEC '91., 13th International
Conference_Location :
Kyoto
Print_ISBN :
0-87942-670-5
DOI :
10.1109/INTLEC.1991.172388
