ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,890, issued on Jan. 13.
"Floor lamp control circuit" was invented by Juanjuan Lou (Tianjin, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present utility model discloses a floor lamp control circuit, which comprises a central processing unit (CPU), a 12-36V isolation adapter, a DC-DC step-down circuit and an H-bridge control LED brightness & color temperature circuit; the input end of the 12-36V isolation adapter is connected to the mains supply, the output end of the 12-36V isolation adapter is connected to the input end of the DC-DC step-down circuit, and the output end of the DC-DC step-down circuit is connected to the CPU; the two PWM...