Apparatus and method for mitigating perturbations in a power converter

A method for mitigating voltage spikes in a power converter, comprising:

• connecting two or more RLC branches between input terminals and output terminals of the power converter;
• and
• selecting respective resistive, inductive, and capacitive components of the two or more RLC branches to produce natural periods of the two or more RLC branches that are longer than a duration of a switching transient of the power converter.

A method of controlling a power converter, comprising:

• controlling, with a control module, switching of a plurality of switches that interconnect first and second input terminals of the power converter with first and second output terminals of the power converter, to convert power from the input terminals to the output terminals;
• and
• mitigating voltage spikes during the switching with a first RLC branch connected from the first input terminal to the first output terminal and with a second RLC branch connected from the second input terminal to the second output terminal.