ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,238, issued on Sept. 16, was assigned to Rohm Co. Ltd. (Kyoto, Japan).
"Power supply device" was invented by Daigo Fujimura (Kyoto, Japan) and Seiichi Yamamoto (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An output voltage is stabilized at a predetermined target voltage by using a charge pump circuit. A first voltage divider that is arranged between an output line to which the output voltage is applied and a feedback line and that generates a first division voltage commensurate with the output voltage and a second voltage divider arranged between the feedback line and the ground and that generates a second division voltage commensur...