ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,467, issued on Sept. 22, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).
"Switching power supply device" was invented by Chuipong Liu (Hong Kong) and Siuwai Leung (Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switching power supply device includes a passive EMI filter including capacitors coupled to an output terminal of the passive EMI filter and a ground, a first soft switching converter coupled to the passive EMI filter output terminal and the ground, including a primary side switching circuit coupled to the passive EMI filter output terminal, an isolation transformer including a primary winding coupled to the primary...