Power converting system and control method thereof

Abstract

A power converting system includes a full-bridge converter and a controlling unit. The full-bridge converter includes two switch elements at a first leg and two switch elements at a second leg. The controlling unit is in communication with the full-bridge converter for generating two leading control signals to control the first leg and two lagging control signals to control the second leg in a first modulation mode, or generating the two leading control signals to control the second leg and the two lagging control signals to control the first leg in a second modulation mode. The first modulation mode and the second modulation mode are alternately switched between each other, or randomly switched between each other or adaptively switched between each other according to a temperature difference between the first leg and the second leg.

Dependencies are inferred from the claim text.