US Patent Issued to SANKEN ELECTRIC on July 29 for "Excitation current detection circuit and semiconductor device" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,557, issued on July 29, was assigned to SANKEN ELECTRIC Co. LTD. (Niiza, Japan).

"Excitation current detection circuit and semiconductor device" was invented by Shinji Aso (Niiza, Japan), Toshihiro Nakano (Niiza, Japan), Mitsutomo Yoshinaga (Niiza, Japan) and Hiroshi Hosoya (Niiza, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An excitation current detection circuit is disclosed. A transformer comprises a primary winding, an auxiliary winding, and a secondary winding. A first voltage detector detects a positive voltage of an auxiliary winding voltage. A second voltage detector detects a negative voltage of the auxiliary winding voltage. A fir...