US Patent Issued to GM Global Technology Operations on June 17 for "DC-DC power converter pre-charge system" (Michigan Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,818, issued on June 17, was assigned to GM Global Technology Operations LLC (Detroit).

"DC-DC power converter pre-charge system" was invented by Akshay Sarin (Auburn Hills, Mich.), Alan B. Martin (Washington, Mich.) and Joseph Berg (Highland, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pre-charge system for a DC electric power system includes a high-voltage electric power bus that electrically connects to an external bus. A contactor includes a first switch arranged to control electric power through the positive bus link, and a second switch arranged to control electric power through the negative bus link. A pre-charge resistor is arrange...