A new forward converter with soft commutation

This paper will present a steady-state analysis with complete characterization of the converter operation. The non-dissipative snubber associated with a Forward converter provides the soft commutation switching. The proposed approach allows building a converter with high frequency operation. A detailed analysis of the operation will be presented. The output voltage is controlled by PWM with a constant frequency. The complete operating principles, theoretical analysis, relevant equations, simulation results and the experimental results will be presented.

[1]  H.L. Hey,et al.  An optimum ZVS-PWM DC-to-DC converter family: analysis, simulation and experimental results , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

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

[3]  L.C. de Freitas,et al.  A novel family of DC-DC PWM converters using the self-resonance principle , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[4]  Fred C. Lee,et al.  High-frequency quasi-resonant converter technologies , 1988, Proc. IEEE.