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:
May. 22, 2018
Filed:
Apr. 13, 2017
Applicant:
Stmicroelectronics (Shenzhen) R&d Co. Ltd., Shenzhen, CN;
Inventors:
Yi Jun Duan, Shenzhen, CN;
Tao Tao Huang, Shenzhen, CN;
Assignee:
STMicroelectronics (Shenzhen) R&D Co. Ltd, Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0851 (2013.01); H03F 3/45215 (2013.01); H05B 33/0812 (2013.01); H05B 33/0827 (2013.01); H05B 33/0887 (2013.01); H03F 2200/351 (2013.01);
Abstract
A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.