A ZVS-PWM inverter using a simple ZVS-PWM auxiliary commutation pole

A new zero-voltage-switching (ZVS) pulsewidth-modulated (PWM) single-phase inverter using a simple ZVS-PWM auxiliary commutation pole is presented in this paper. Except for the auxiliary switches, all active and passive semiconductor devices in the ZVS-PWM single-phase inverter operate at ZVS turn on and turn off. The auxiliary switches operate at zero-current-switching (ZCS) turned-on and turned-off. Besides operating at constant frequency, the proposed inverter has no additional voltage and current stresses on the main switch compared to the hard switching inverter counterpart. Auxiliary components rated at very small current are used. The principle of operation, theoretical analysis, and experimental results of the new ZVS-PWM single-phase inverter, rated 600W and operated at 40 kHz, are provided in this paper to verify the performance.

[1]  W. McMurray,et al.  Resonant snubbers with auxiliary switches , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[2]  Ivo Barbi,et al.  Analysis, designing, and experimentation of a transformer-assisted PWM zero-voltage switching pole inverter , 2000 .

[3]  R.W. De Doncker,et al.  The auxiliary resonant commutated pole converter , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[4]  M. Nakaoka,et al.  Auxiliary resonant commutated soft-switching inverter with bidirectional active switches and voltage clamping diodes , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[5]  A. Elasser,et al.  Soft switching active snubbers for dc/ac converters , 1995 .

[6]  A. Elasser,et al.  Soft switching active snubbers for DC/DC converters , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.