ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,438, issued on Jan. 27, was assigned to INFSITRONIX TECHNOLOGY Corp. (Hsinchu County, Taiwan).

"Switch control module of switch mode power supply" was invented by Yuan-Kai Cheng (Hsinchu County, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A switch control module for a switch mode power supply comprising a biased switch, an active switch and a control unit. The biased switch comprises a first node and a second node. The first node is coupled to a primary side winding. The active switch is connected to the second node. The control unit controls the ON/OFF states of the active switch and the biased switch is biased to be turned on initially. ...