ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,819, issued on May 19, was assigned to Huawei Digital Power Technologies Co. Ltd. (Shenzhen, China).

"Power converter, protection method, and system" was invented by Baoguo Chen (Dongguan, China), Wing Cong Cheung (Dongguan, China) and Pengpeng Yu (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power converter includes a protection circuit, a controller, and a power conversion circuit. The protection circuit includes a first positive temperature coefficient (PTC) resistor, a first switch unit, and a second switch unit. The power conversion circuit includes a direct current bus, and the direct current bus includes a positive direct c...