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Charging system with galvanic isolation and multiple operating modes

United States Patent

January 8, 2013
View the Complete Patent at the US Patent & Trademark Office
Systems and methods are provided for operating a charging system with galvanic isolation adapted for multiple operating modes. A vehicle charging system comprises a DC interface, an AC interface, a first conversion module coupled to the DC interface, and a second conversion module coupled to the AC interface. An isolation module is coupled between the first conversion module and the second conversion module. The isolation module comprises a transformer and a switching element coupled between the transformer and the second conversion module. The transformer and the switching element are cooperatively configured for a plurality of operating modes, wherein each operating mode of the plurality of operating modes corresponds to a respective turns ratio of the transformer.
Kajouke; Lateef A. (San Pedro, CA), Perisic; Milun (Torrance, CA), Ransom; Ray M. (Big Bear City, CA)
GM Global Technology Operations LLC (Detroit, MI)
12/ 535,994
August 5, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under DE-FC26-07NT43123, awarded by the United States Department of Energy. The Government has certain rights in this invention.