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. 11, 2017
Filed:
Sep. 22, 2015
Applicant:
Nxp B.v., Eindhoven, NL;
Inventor:
Ge Wang, Chandler, AZ (US);
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/151 (2006.01); H03K 5/24 (2006.01); G06F 1/06 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01);
Abstract
Embodiments of a current mirror for a constant-current light-emitting diode (LED) driver system and a constant-current LED driver integrated circuit (IC) device having the current mirror are described. In one embodiment, a current mirror includes at least one current mirror cell. Each of the at least one current mirror cell includes semiconductor circuits configured to generate an output current based on a reference current and a control module configured to alternately and continuously charge the semiconductor circuits in response to non-overlapping clock signals.