Power distribution system for generating regulated

专利名称：Power distribution system for generating

regulated DC output voltages using a dualactive bridge converter driven from anunregulated DC source

发明人：Mustansir H. Kheraluwala,Michael J. Schutten申请号：US08/326905申请日：19941021公开号：US05500791A公开日：19960319

摘要：A power distribution system including a dual active bridge converter (DABC)distributes a regulated high-frequency, edge-resonant, square wave ac output voltagefrom an unregulated dc voltage source. The DABC- includes a primary-side half-bridgeconnection of switching devices and a secondary-side half-bridge connection of switchingdevices which are coupled by an intermediate high-frequency transformer. An acdistribution bus is connected to the regulated secondary side of the transformer. Theprimary-side and secondary-side connections of switching devices are phase-shifted in amanner to provide a regulated high- frequency square- wave voltage on the ac

distribution bus, which is distributed via a low- impedance distribution bus to a plurality ofsimple point-of-load converters. Alternatively, a plurality of DABC's is configured in ahigh- frequency ac power distribution system such that a primary-side half- bridge ofswitching devices converts an unregulated dc voltage source to an unregulated high-frequency, square wave ac voltage which is distributed to a plurality of point-of-loadconverters. Each point-of- load converter has a high-frequency transformer and

secondary- side switching devices, such that each point-of-load converter forms a DABCpair with the primary-side half-bridge.

申请人：GENERAL ELECTRIC COMPANY

代理人：Jill M. Breedlove,Marvin Snyder

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