Benchmark of power packaging for DC/DC and AC/DC converters

摘要

This paper presents the first reported final results of anbenchmarking project "StatPEP" which investigated the Status of PowernElectronic Packaging used in commercial DC/DC and AC/DC switch modenpower supplies. The methodology of the project is first described. Somenof the salient results of a comprehensive benchmarking of DC/DCnconverters (rated power of 100 W) and AC/DC converters (rated power upnto 576 W) are presented. Examples for figures-of-merit are presented.nThe results of the investigation are presented in a generic form, whichndoes not identify individual products. A comparison of the performancenof the units shows that the measured power density of the AC/DC units isnapproximately 10% that of the DC/DC while the thermal density based onnfootprint is 50%. Also the switching frequency of the AC/DC is 50% thatnof the DC/DC. Some of the reasons for these differences are discussed