Title :
Nondissipative snubber for rectifying diodes applied to a front-end power supply
Author :
Hirokawa, Masahiko ; Ninomiya, Tamotsu
Author_Institution :
Circuit Technol. Dev. Div., TDK R&D Corp., Westford, MA, USA
Abstract :
Previously, a zero voltage switching (ZVS) phase-shift-controlled (PSC) full-bridge DC-DC converter with nondissipative snubber for rectifying diodes has been proposed. This paper proposes an improved snubber to further reduce the power dissipation in a rectifying circuit. As a result, the efficiency has been improved to 91% on a prototype for a 12 V/80 A output and 94% for a 48 V/20 A output
Keywords :
DC-DC power convertors; bridge circuits; phase control; power semiconductor diodes; power supplies to apparatus; snubbers; switching circuits; 12 V; 20 A; 48 V; 80 A; 91 percent; 94 percent; front-end power supply; full-bridge DC-DC converter; nondissipative snubber; phase-shift-control; power dissipation reduction; rectifying diodes; zero voltage switching; Circuits; DC-DC power converters; Diodes; Inductors; Power dissipation; Power supplies; Resonance; Snubbers; Switches; Zero voltage switching;
Conference_Titel :
Power Conversion Conference, 2002. PCC-Osaka 2002. Proceedings of the
Conference_Location :
Osaka
Print_ISBN :
0-7803-7156-9
DOI :
10.1109/PCC.2002.998139
