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. 08, 2018
Filed:
Aug. 14, 2017
Applicant:
Nxp B.v., Eindhoven, NL;
Inventors:
Chandra Prakash Tiwari, Bangalore, IN;
Hendrik Boezen, Nijmegen, NL;
Henricus Cornelis Johannes Büthker, Eindhoven, NL;
Assignee:
NXP B.V., San Jose, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0884 (2013.01); H05B 33/0827 (2013.01); H05B 37/02 (2013.01);
Abstract
For an LED lighting application, overshoot-protection circuitry prevents an LED controller, such as a matrix lighting controller (MLC) that controls an array of LEDs, from falsely detecting an open-circuit condition in an LED controlled by the LED controller, by limiting the magnitude of an overshoot voltage (due to long-wire parasitic inductances) from occurring when a switch in the LED controller that is used to control the LED is turned off.