ALEXANDRIA, Va., June 9 -- United States Patent no. 12,652,044, issued on June 9, was assigned to ROHM Co. LTD. (Kyoto, Japan).
"Driving circuit and control board" was invented by Hirokatsu Umegami (Kyoto, Japan), Atsushi Yamaguchi (Kyoto, Japan) and Manabu Ishitobi (Yamatokoriyama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A driving circuit controls driving of a switching element by outputting a driving signal to the switching element. The driving circuit includes an air-core transformer having a plurality of primary windings and a secondary winding magnetically coupled to each of the plurality of primary windings. An AC signal is input to each of the plurality of primary windings of the air-core...