Title :
Novel zero-voltage-transition PWM multiphase 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
fDate :
1/1/1998 12:00:00 AM
Abstract :
Novel zero-voltage-transition (ZVT) pulse-width-modulation (PWM) multiphase converters are presented. To construct a ZVT multiphase converter in a conventional way, it is necessary to add the auxiliary circuits with as many number of phases. In the proposed converter, only one auxiliary circuit provides the zero-voltage switching (ZVS) for main switches and diodes of all phases. So, the new converters are cost effective and attractive for high-performance and high power-density conversion applications. Operation, features, and characteristics of the two-phase buck converter are illustrated and verified on a 4-kW 100-kHz insulated gate bipolar transistor (IGBT)-based (a MOSFET for the auxiliary switch) experimental circuit
Keywords :
DC-DC power convertors; PWM power convertors; insulated gate bipolar transistors; power semiconductor switches; switching circuits; 100 kHz; 4 kW; IGBT; PWM multiphase converters; ZVT; auxiliary circuits; high power-density conversion; high-performance; insulated gate bipolar transistor; pulse-width-modulation; two-phase buck converter; zero-voltage switching; zero-voltage-transition; Buck converters; Costs; Diodes; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Switching converters; Zero voltage switching;
Journal_Title :
Power Electronics, IEEE Transactions on
