ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,470,144, issued on Nov. 11, was assigned to STMicroelectronics S.r.l. (Agrate Brianza, Italy).

"Buck-boost boot refresher circuit" was invented by Ranieri Guerra (S. Giovanni la Punta, Italy), Leandro Grasso (Sortino, Italy), Serena Angela Versace (Villa San Giovanni, Italy), Francesca Giacoma Mignemi (S. Giovanni la Punta, Italy) and Nunzio Greco (Camporotondo Etneo, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "In accordance with an embodiment, a method of operating a buck-boost power supply includes operating the buck-boost power supply in a buck mode by providing a PWM signal to a first half-bridge circuit, and turning on a charge transfer sw...