Title :
Small-signal and transient analysis of a zero-voltage-switched, phase-controlled PWM converter using averaged switch model
Author_Institution :
Digital Equipment Corp., Maynard, MA, USA
Abstract :
An averaged switch model for a popular zero-voltage-switched (ZVS), phase-controlled PWM (PC-PWM) converter is developed. The model can be easily implemented in a circuit analysis program such as PSPICE to derive small-signal characteristics as well as predict large-signal transient behaviors of the converter in both continuous and discontinuous conduction modes. Using the averaged approach, the required computer time is greatly reduced. Such a model is vitally important for studying behavior of large systems such as parallel modules. A PSPICE subcircuit implementing the zero-voltage-switching PWM function is introduced. Simulation results illustrating both small and large-signal behaviors of the converter are presented
Keywords :
SPICE; phase control; power convertors; pulse width modulation; transients; PSPICE; PSPICE subcircuit; averaged switch model; circuit analysis program; continuous conduction mode; discontinuous conduction modes; phase-controlled PWM converter; small signal analysis; transient analysis; zero-voltage-switched; Circuit analysis; Computational modeling; Predictive models; Pulse width modulation; Pulse width modulation converters; SPICE; Switches; Switching converters; Transient analysis; Zero voltage switching;
Journal_Title :
Industry Applications, IEEE Transactions on
