Electric vehicle charger including power module and operating method thereof

Abstract

A method of operating an electric vehicle (EV) charger including a power module according to embodiments of the present invention includes determining a required charging amount of an EV, determining the number of power modules required for satisfying the required charging amount of the EV when an EV charger operates power modules at maximum load efficiency, determining whether the number of power modules disposed in the EV charger is greater than the number of determined power modules, determining a load factor that becomes the maximum load efficiency of the power modules when the number of power modules disposed in the EV charger is greater than the number of determined power modules, determining whether the power modules are operable at the determined load factor, and when the power modules are operable at the determined load factor, operating the power modules in consideration of heat generation rates of the power modules, wherein the required charging amount is a charging power amount or a charging voltage.

Dependencies are inferred from the claim text.