Title :
Novel zero voltage transition PWM multi-phase converters
Author :
Cho, Jung-Goo ; Baek, Ju-Won ; Rim, Geun-Hie ; Kang, Iouri
Author_Institution :
Power Electron. Res. Div., Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
New zero voltage transition (ZVT) PWM multi-phase power converters are presented. To construct a ZVT multi-phase power converter in a conventional way, it is necessary to add auxiliary circuits-as many as the number of phases. In the proposed power converter, only one auxiliary circuit provides the zero voltage switching (ZVS) for main switches and diodes of all phases. So, the new power converters are cost effective and attractive for high performance and high power density conversion applications. Operation, features and characteristics of a two-phase buck power converter are illustrated and verified on a 4 kW, 100 kHz IGBT based (MOSFET for the auxiliary switch) experimental circuit
Keywords :
PWM power convertors; bipolar transistor switches; field effect transistor switches; insulated gate bipolar transistors; power MOSFET; power bipolar transistors; power field effect transistors; power semiconductor switches; switching circuits; 100 kHz; 4 kW; IGBT; MOSFET; PWM multi-phase power converter; ZVS; auxiliary circuit; characteristics; performance; power density; two-phase buck power converter; zero voltage switching; Costs; Diodes; Insulated gate bipolar transistors; MOSFET circuits; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Switching converters; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500488
