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:
Apr. 19, 2022
Filed:
Jan. 22, 2021
Applicant:
Shanghai Bright Power Semiconductor Co., Ltd., Shanghai, CN;
Inventors:
Wei-Jia Yu, Shanghai, CN;
Min-Min Fan, Shanghai, CN;
Assignee:
SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD., Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/14 (2020.01); H05B 45/50 (2020.01); H05B 45/325 (2020.01);
U.S. Cl.
CPC ...
H05B 45/14 (2020.01); H05B 45/325 (2020.01); H05B 45/50 (2020.01);
Abstract
A dimming control circuit, driving device and control method thereof, the dimming control circuit comprising a dimmer, a driving device coupled to the dimmer and controlling a load on the basis of a dimming level reference of the dimmer, and a bleeder supplying power to the dimmer, the driving device including a power switch coupled to the load, wherein a duty ratio of a driving voltage on the power switch is adjusted in accordance with the dimming level reference to control an operating current of the load.