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:
Jul. 28, 2015
Filed:
Dec. 03, 2014
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Pavel Horsky, Brno, CZ;
Petr Kamenicky, Brno, CZ;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
In an embodiment, an LED controller is configured to form a charge transfer sequence to selectively enable LED transistors of a plurality of LED transistors that are configured for coupling in parallel with a plurality of LEDs. An embodiment may include that the LED controller is configured to sequentially couple a charge capacitor to a gate-to-source capacitor of each LED transistor of the plurality of LED transistors to one of charge or to refresh the gate-to-source capacitor of a respective LED transistor and to one of enable or re-enable the respective LED transistor wherein the gate-to-source capacitor is a parasitic gate-to-source capacitor of the LED transistor wherein the charge capacitor is sequentially coupled to the gate-to-source capacitor of each LED transistor.