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. 06, 2018
Filed:
May. 26, 2015
Philips Lighting Holding B.v., Eindhoven, NL;
Kumar Arulandu, Eindhoven, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
A lighting circuit comprises a first circuit () with an element () with a diode function coupled serially to a parallel combination of a capacitor () and a serial combination of a first LED () and a first switch () and comprises a second circuit () with a second switch (). The circuits () are parallel circuits. The lighting circuit produces light in response to a supply current from a current source (). The second switch (), when conducting, lets the supply current pass and prevents it from flowing through the element (), and, when non-conducting, blocks the supply current and it flows through the element (). The first switch (), when non-conducting, prevents the first LED () from producing some of the light, and, when conducting, allows the first LED () to produce some of the light. Power for the first LED () is delivered via the supply current when flowing through the element () or via a capacitor current supplied by the capacitor ().