Title :
Analysis of a quasi-resonant circuit for soft-switched inverters
Author :
Zhang, J. ; Hui, S.Y.R.
Author_Institution :
Sch. of Electr. Eng., Univ. of Technol., Sydney, NSW, Australia
Abstract :
This paper presents an analysis of a quasi-resonant circuit for soft-switched inverters. The quasi-resonant circuit provides zero-voltage instants for zero-voltage inverter switching by pulling down the DC link voltage momentarily to zero without increasing the peak value of the nominal DC link voltage. Switches in the quasi-resonant circuit can also be turned off at zero current/voltage condition. The operating principle of this circuit is explained, and the analysis of each operating mode presented. Design criteria for achieving zero voltage switching are derived from the general mathematical analysis. Operation of the circuit has been verified by a PSPICE simulation
Keywords :
PWM invertors; SPICE; circuit analysis computing; digital simulation; network synthesis; power engineering computing; resonant power convertors; software packages; switching circuits; DC link voltage; PSpice; computer simulation; design criteria; mathematical analysis; operating mode; operating principle; quasi-resonant circuit; soft-switched inverters; zero current switching; zero voltage switching; Capacitors; Clamps; Pulse width modulation; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; SPICE; Switching circuits; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE
Conference_Location :
Taipei
Print_ISBN :
0-7803-1859-5
DOI :
10.1109/PESC.1994.373867
