A new family of zero-current-switching (ZCS) PWM converters

A new family of zero-current-switching (ZCS) pulsewidth-modulated (PWM) converters which uses a new ZCS-PWM switch cell is presented in this paper. The main switch and auxiliary switch operate at ZCS turn-on and turn-off, and all the passive semiconductor devices in the ZCS-PWM converter operate at zero-voltage-switching (ZVS) turn-on and turn-off. Besides operating at constant frequency and with reduced commutation losses, these new converters have no additional current stress in comparison to the hard-switching converter counterpart. The new family of ZCS-PWM converters is suitable for high-power applications using insulated gate bipolar transistors (IGBTs). The PWM switch model and state-space averaging approach is used to estimate and examine the steady-state and dynamic character of the system. The principle of operation, theoretical analysis, and experimental results of the new ZCS-PWM boost converter, rated 1 kW and operating at 30 kHz, are provided in this paper to verify the performance of this new family of converters.

[1]  Helio Leaes Hey,et al.  A true ZCZVT commutation cell for PWM converters , 2000 .

[2]  F. Lee,et al.  Novel zero-current-transition PWM converters , 1993, Proceedings of IEEE Power Electronics Specialist Conference - PESC '93.

[3]  J. B. Klaassens,et al.  PWM-switch modeling of DC-DC converters , 1995 .

[4]  Ivo Barbi,et al.  Novel zero-current-switching PWM converters , 1997, IEEE Trans. Ind. Electron..

[5]  Slobodan Cuk,et al.  A general unified approach to modelling switching-converter power stages , 1976, 1970 IEEE Power Electronics Specialists Conference.

[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.

[7]  Jian Yang,et al.  Application of insulated gate bipolar transistor to zero-current switching converters , 1989 .

[8]  G. Ivensky,et al.  A soft switcher optimized for IGBTs in PWM topologies , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[9]  Fred C. Lee,et al.  Novel zero-current-switching-zero-voltage-switching converters , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[10]  Fred C. Lee,et al.  Novel zero-voltage-transition PWM converters , 1992 .

[11]  Guihao Hau,et al.  Novel Zero Voltage-Transition PWM Converter , 1992 .

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

[13]  Fred C. Lee,et al.  Novel zero-current-transition PWM converters , 1993 .

[14]  Carlos A. Canesin,et al.  A new family of zero-current-switching PWM converter , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[15]  Helio Leaes Hey,et al.  An improved ZCS-PWM commutation cell for IGBT's application , 1999 .

[16]  D. C. Martins,et al.  Buck quasi-resonant converter operating at constant frequency: analysis, design and experimentation , 1989, 20th Annual IEEE Power Electronics Specialists Conference.