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. 01, 2012
Filed:
Aug. 16, 2009
Arkadiy Peker, New Hyde Park, NY (US);
Alon Ferentz, Bat Yam, IL;
Dror Korcharz, Bat Yam, IL;
Nadav Barnea, Neve Savion, IL;
Migel Jacubovski, Hod Hasharon, IL;
Itay Cohen, Kfar Sava, IL;
Gustavo Aizenberg, Ness Ziona, IL;
Arkadiy Peker, New Hyde Park, NY (US);
Alon Ferentz, Bat Yam, IL;
Dror Korcharz, Bat Yam, IL;
Nadav Barnea, Neve Savion, IL;
Migel Jacubovski, Hod Hasharon, IL;
Itay Cohen, Kfar Sava, IL;
Gustavo Aizenberg, Ness Ziona, IL;
Microsemi Corp.—Analog Mixed Signal Group Ltd., Hod Hasharon, IL;
Abstract
A chipset for powering and controlling a plurality of light emitting diode (LED) strings. The chipset includes a controller having a pulse width modulating (PWM) functionality and a data transfer interface circuitry; and at least one dissipative active element array comprising a plurality of dissipative active elements. The dissipative active element array(s) are packaged to be thermally separate from the controller. The PWM functionality is arranged to individually pulse width modulate a current flow through each of the LED strings. Each of the plurality of dissipative active elements is associated with a particular one of the plurality of LED strings and is arranged to limit the current flow of the pulse width modulated current that flows through the particular LED string to a value, the value being responsive to a value output by the controller via the data transfer interface circuitry.