| Abstract |
With fast switching wide band-gap semiconductorsconquering high-power application, zerovoltageswitching (ZVS) topologies are crucial toincrease converter efficiency by minimizing switchinglosses. However, ZVS criteria cannot always be fulfilledin the entire operating range of the converter. In thiscase, the converter enters incomplete ZVS (iZVS).The losses during iZVS cannot be quantified using conventionaldouble-pulse tests, but require calorimetricmeasurement setups, and separation of turn-on, conduction,and turn-off losses. This can be obtained fordiscrete devices, but is not possible for power modules.In this paper, a method to estimate the switching lossesduring iZVS using equivalent hard-switching lossesis presented and experimentally verified, |
