Regulating power factor correction circuit for rectifier involves subtracting deviation of bridge rectifier output and reference currents from reference duty cycle to give control duty cycle

摘要

The method involves controling a switch element using a digital controler that determines the deviation of the filter capacitor output voltage from a reference voltage and a reference current value from the deviation and the desired rectifier input current profile. The deviation of the bridge rectifier output current from the reference current is subtracted from a reference duty cycle to give the duty cycle for controling the switch element.