ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,382, issued on May 27, was assigned to Joulwatt Technology Co. Ltd. (Hangzhou, China).
"Dimming method and dimming circuit" was invented by Pitleong Wong (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dimming method and a dimming circuit for driving LED load are provided. The dimming circuit includes a power stage circuit, and the power stage circuit includes a power switch transistor. After the power stage circuit enters the DCM working mode, it obtains a first integral value according to the inductance current in a switch period of the power switch transistor, and obtains second time according to the first integral value and a d...