ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,692, issued on April 21, was assigned to PowerX Semiconductor Corp. (Hsinchu County, Taiwan).

"Power stage circuit, bootstrap circuit and driving method" was invented by Sheng-An Ko (Hsinchu County, Taiwan) and Bo-Zhou Ke (Hsinchu County, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The application provides a power stage circuit, a bootstrap circuit and a driving method. The power stage circuit includes a switch circuit, a driving circuit and the bootstrap circuit. The switch circuit includes a low-side switch and a high-side switch coupled to a switching node. The driving circuit is configured to drive the low-side switch and the high-sid...