The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Sep. 06, 2019
Xiamen Eco Lighting Co., Ltd., Xiamen, CN;
XIAMEN ECO LIGHTING CO., LTD., Xiamen, CN;
Abstract
A light sensing drive circuit and a lamp are provided. The light sensing drive circuit includes a filtering and rectifying module configured to generate a rectified voltage according to the commercial power; a power module configured to generate a supply voltage according to the rectified voltage; a light sensing module configured to generate a light sensing signal according to ambient light intensity and the supply voltage; a sampling module configured to generate a sampling signal according to the rectified voltage; a main control module configured to generate a control signal of a preset duty cycle according to the light sensing signal and the sampling signal when the drive module is turned off by the control signal; a drive module configured to generate a driving voltage according to the control signal and the rectified voltage so as to drive the internal LED module to emit light.