US Patent Issued to HUAWEI DIGITAL POWER TECHNOLOGIES on March 31 for "Backup apparatus and power converter" (Chinese, Swedish Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,565, issued on March 31, was assigned to HUAWEI DIGITAL POWER TECHNOLOGIES Co. LTD. (Shenzhen, China).

"Backup apparatus and power converter" was invented by Hang Wang (Kista, Sweden), Wei Chen (Xi'an, China), Xuhao Wang (Xi'an, China), Yunhui Guo (Shenzhen, China) and Fanfan Xing (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A backup apparatus includes a contactor, a first rectifier circuit, an auxiliary power supply circuit, a first switch, a second switch, and a controller. The contactor includes a coil connected to the auxiliary power supply circuit through the second switch and a main contact switch connected to a power grid....