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:
Sep. 03, 2024
Filed:
Oct. 24, 2019
Silicon Hill B.v., Amsterdam, NL;
Silicon Hill B.V., Amsterdam, NL;
Abstract
An LED lamp () for use in a luminaire (), the LED lamp () comprising a plurality of LEDs () connected in a plurality of groups (); one or more rectifier circuits () adapted for rectifying an electrical current received from the luminaire () for supply to the LEDs (); a first control circuit () adapted to estimate electrical current or electrical power received by or used by the LED lamp (), and adapted to generate an output on the basis of the estimate; and a switching circuit () comprising a first switch () for switching the plurality of groups of LEDs () between a plurality of different circuit configurations at a switching frequency of at least 300 kHz and according to a duty cycle; wherein the switching circuit () is configured to adjust the duty cycle in dependence on the output of the first control circuit () to adjust the electrical power used by the LED lamp ().