ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,716, issued on Dec. 9, was assigned to MITSUMI ELECTRIC Co. LTD. (Tokyo).
"Switching power supply device" was invented by Takeshi Sato (Yokohama, Japan) and Minoru Kado (Sagamihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switching power supply device includes a secondary-side control circuit including a switching control circuit that generates a voltage for ON-OFF control of a switching element for synchronous rectification. The secondary-side control circuit includes an external terminal to which a drain voltage of the switching element is input, a power supply terminal to which a voltage rectified by the switching element is input, ...