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:
Mar. 24, 2020
Filed:
Dec. 28, 2018
Applicant:
Lumileds Holding B.v., Schiphol, NL;
Inventor:
Zhihua Song, Palo Alto, CA (US);
Assignee:
Lumileds Holding B.V., Schiphol, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H05B 33/08 (2006.01); H02M 1/08 (2006.01); F21V 23/00 (2015.01); H02M 1/36 (2007.01); F21Y 105/10 (2016.01); F21Y 115/10 (2016.01); H05B 45/37 (2020.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); F21V 23/005 (2013.01); H02M 1/083 (2013.01); H02M 1/36 (2013.01); H05B 45/37 (2020.01); F21Y 2105/10 (2016.08); F21Y 2115/10 (2016.08);
Abstract
A device includes a first circuit and a second circuit. The first circuit receives a first voltage, at a first input, and provides a second voltage having one of a first level and a second level based on a level of the first voltage being above or below a threshold voltage. The second circuit is electrically coupled to the first input of the first circuit and decreases the level of the first voltage below a threshold voltage on a condition that the level of the first voltage is above the threshold voltage for a maximum time.