A Family of Auxiliary Switch ZVS-PWM DC-DC Converters with Coupled Inductor

A novel auxiliary switch DC-DC converter with coupled inductor is presented in this paper. The proposed circuit achieves loss-less switching for both the main and auxiliary switches without increasing the main device current/voltage rating. A tapping in the pole inductor is added for the purpose of commutation. The proposed circuit is capable of operation at elevated switching frequencies of several hundreds of kHz, high and low power levels with wide range of load variations. In the sections that follow, theoretical analysis and operating principle of the proposed circuit is outlined through the example of buck converter. Simulation and experimental results of 33 watt, 400 kHz boost converter are presented. The proposed circuit is applicable to all isolated and non-isolated DC-DC converters. The performance and the design equations of the ZVS are identical for all types of DC-DC converters when the throw voltage and the pole current are properly defined

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

[2]  L. C. de Freitas,et al.  A high-power high-frequency ZCS-ZVS-PWM buck converter using a feedback resonant circuit , 1993 .

[3]  R.D. Middlebrook,et al.  A unified analysis of converters with resonant switches , 1987, IEEE Power Electronics Specialists Conference.

[4]  Youhao Xi,et al.  A forward converter topology employing a resonant auxiliary circuit to achieve soft switching and power transformer resetting , 2003, IEEE Trans. Ind. Electron..

[5]  Yingqi Zhang,et al.  A novel zero voltage switched (ZVS) buck converter using coupled inductor , 2001, Canadian Conference on Electrical and Computer Engineering 2001. Conference Proceedings (Cat. No.01TH8555).

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

[7]  Slobodan Cuk,et al.  Advances in switched mode power conversion , 1981 .

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

[9]  Gerry Moschopoulos,et al.  A zero-voltage switched PWM boost converter with an energy feedforward auxiliary circuit , 1996 .

[10]  H.L. Hey,et al.  Self-commutated auxiliary circuit ZVT PWM converters , 2004, IEEE Transactions on Power Electronics.

[11]  I. Barbi,et al.  A family of ZVS-PWM active-clamping DC-to-DC converters: synthesis, analysis, and experimentation , 1995, Proceedings of INTELEC 95. 17th International Telecommunications Energy Conference.

[12]  K. M. Smith,et al.  A comparison of voltage-mode soft-switching methods for PWM converters , 1997 .

[13]  V. Vorperian.  Analysis of Resonant Converters , 1984 .

[14]  G. Joos,et al.  A novel zero-voltage switched PWM boost converter , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[15]  G. Joos,et al.  A zero voltage transition boost converter employing a soft switching auxiliary circuit with reduced conduction losses , 2004, IEEE Transactions on Power Electronics.

[16]  G. Moschopoulos,et al.  Single-stage ZVS PWM full-bridge converter , 2003 .

[17]  I. Barbi,et al.  A family of ZVS-PWM active-clamping DC-to-DC converters: synthesis, analysis, design, and experimentation , 1997 .

[18]  Chien-Ming Wang,et al.  Novel zero-Voltage-transition PWM DC-DC converters , 2006, IEEE Transactions on Industrial Electronics.

[19]  F. C. Lee,et al.  Variations of quasi-resonant DC-DC converter topologies , 1986, 1986 17th Annual IEEE Power Electronics Specialists Conference.

[20]  V. Ramanarayanan,et al.  A unified model for the ZVS DC-DC converters with active clamp , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).