Symbolic analysis of switched-mode DC-to-DC converters
暂无分享,去创建一个
A method of modeling PWM switches for symbolic analysis of pulse-width-modulated (PWM) dc-to-dc converters operating in the continuous conducting mode (CCM) is described for switches with both fixed and modulated duty ratio. The well-known average models of PWM switch according to Vorperian are implemented by means of modified nodal analysis into the SNAP program to analyze transfer and immittance functions, especially the line-to-output and control-to-output transfer functions in the symbolic and semisymbolic forms, and the corresponding frequency responses. An example of the analysis of boost converter is shown.
[1] Slobodan Cuk,et al. A general unified approach to modelling switching-converter power stages , 1976, 1970 IEEE Power Electronics Specialists Conference.
[2] V. Vorperian,et al. Equivalent circuit models for resonant and PWM switches , 1989 .
[3] J. B. Klaassens,et al. PWM-switch modeling of DC-DC converters , 1995 .
[4] V. Vorperian. Simplified analysis of PWM converters using model of PWM switch. II. Discontinuous conduction mode , 1990 .