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:
Oct. 11, 2005
Filed:
Mar. 08, 2004
Applicants:
Jyh-chain Lin, Tu-chen, TW;
Ching-yen Lee, Tu-chen, TW;
Inventors:
Jyh-Chain Lin, Tu-chen, TW;
Ching-Yen Lee, Tu-chen, TW;
Assignee:
Hon Hai Precision Ind. Co., Ltd., Taipei Hsien, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F001/00 ;
U.S. Cl.
CPC ...
Abstract
An LED driving circuit includes a current limiting resistor (), an FET (), and a feedback circuit (). The FET has a drain electrode connected to the current limiting resistor to provide current to a load such as an LED (), and the feedback circuit has a variable reference voltage source () for controlling a current of the drain electrode of the FET.
Quick Actions:
Lin, Jyh-Chain. (2005). Driving circuit for light emitting diodes (U.S. Patent No. 6954039). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6954039
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile