ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,382, issued on April 14, was assigned to Xiamen PVTECH Co. Ltd. (Xiamen, China).
"Lighting device having multi-stage chip power supplying mechanism capable of improving driving efficiency" was invented by Fuxing Lu (Xiamen, China) and Zhirong Lin (Xiamen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting device having multi-stage chip power supplying mechanism capable of improving driving efficiency includes a light-emitting module, a rectifying module, a pre-startup module, a power factor correction module, a voltage converting module and an auxiliary power source module. The rectifying module generates a rectified voltage. The pre-s...