ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,520, issued on June 23, was assigned to GS Yuasa International Ltd. (Kyoto, Japan).
"Switching power supply device" was invented by Akiteru Chiba (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A resonant capacitor Crk (k is a natural number of one to n) of each circuit element has one end connected in series to a resonant reactor Lr and a primary winding N1 of a transformer T, and another end connected to the resonant capacitor Crk of another circuit element 10 so that a dimensional multiphase LLC converter having a phase difference of 360deg/Pk is constructed by Pk (Pk is an optional natural number) of the circuit elements 10."
The p...