Title :
Analysis and design considerations of zero-voltage and zero-current-switching (ZVZCS) full-bridge PWM converters
Author :
Choi, Hang-Seok ; Lee, J.H. ; Cho, B.H. ; Kim, J.W.
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
In this paper, a detailed analysis of the zero-voltage and zero-current-switching (ZVZCS) full-bridge PWM converters is performed. The differences of the zero-voltage-switching (ZVS) operation between the conventional ZVS full-bridge PWM converters and the ZVZCS full-bridge PWM converters are analyzed in depth. Circuit parameters that affect the soft-switching conditions are examined and the critical parameters are identified. Based on the analysis, practical design considerations are presented. The analysis and design considerations are verified by experimental results from a 630 V/4 kW converter operating at 80 kHz
Keywords :
PWM power convertors; switching circuits; 4 kW; 630 V; 80 kHz; ZVZCS full-bridge PWM converters; circuit parameters; soft-switching conditions; zero-current-switching; zero-voltage switching; Capacitors; Inductance; Insulated gate bipolar transistors; Pulse width modulation converters; Steady-state; Switches; Switching circuits; Switching loss; Zero current switching; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Conference_Location :
Cairns, Qld.
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1023077
