US Patent Issued to HUAWEI DIGITAL POWER TECHNOLOGIES on Jan. 27 for "Photovoltaic system, relay detection method, and power supply system" (Chinese Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,374, issued on Jan. 27, was assigned to HUAWEI DIGITAL POWER TECHNOLOGIES Co. LTD. (Shenzhen, China).

"Photovoltaic system, relay detection method, and power supply system" was invented by Li Lu (Shenzhen, China), Kai Xin (Shanghai), Xinyu Yu (Shanghai) and Yunfeng Liu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A photovoltaic system, a relay detection method, and a power supply system. When a fault, for example, sticking of the relay is detected, the controller stops sending a PWM driver gating signal to the inverter, and stops driving of a switch transistor in the inverter, and the inverter stops outputting power, and then determines ...