SC chopper with device for switching peaks suppression - includes input chopper together with AC amplifier and rectifier circuit

摘要

The input chopper is controlled by a rectangular signal and the rectifier circuit is regulated by a control signal. The keying ration of the signal is smaller than that of the control signal which is used to regulate the input chopper and it blocks the rectifier when the switching peaks appear at the amplifier output, as in 2355580. A multivibrator with a trapezoidal output voltage controls the rectifier (3)to the multivibrator which converts the trapezoidal voltage into a rectangular voltage whic is used for the input chopper control.