ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,465, issued on May 13, was assigned to CH LIGHTING TECHNOLOGY Co. LTD. (Shaoxing, China).
"LED driving circuit and LED lamp" was invented by Shengjun Cao (Zhejiang, China), Tiantian Xu (Zhejiang, China) and Jizhong Pu (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An LED driving circuit includes a rectifying unit, a filtering unit, a power conversion unit and a leakage protection unit. The leakage protection unit includes: a main control chip capable of detecting an impedance of a power grid and turning on or off an LED driving circuit loop depending on whether the impedance of the power grid exceeds a set value; and a first switchi...