Analysis and Design on Disturbance Depression in EPC Used in Spaceborne TWTA

Disturbance depression is very important to the reliability of spaceborne TWTA and the Electronic Power Controller (EPC) is responsible for the disturbance depression of it. In this paper, based on small signal model and PSPICE, the responses to static and transit disturbance in the pre-regulation stage of EPC are analyzed. And the design for PID is given, the results are satisfactory.