Dynamic digital variable switching frequency control scheme for power converters

This paper presents an approach for variable switching frequency digital control scheme under dynamic transients in order to improve the dynamic performance of the DC-DC switching power converter. The controller varies the switching frequency of the converter, higher or lower than the steady-state frequency, during the transient as a function of error signal depending on the amount and type of the transient. Experimental results of a proof of concept prototype are presented in the paper to validate the controller.