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:
Nov. 22, 2016
Filed:
May. 07, 2015
Altoran Chips & Systems, Santa Clara, CA (US);
Kyeongtae Moon, San Ramon, CA (US);
Jae Hong Jeong, Saratoga, CA (US);
Altoran Chips & Systems, Santa Clara, CA (US);
Abstract
An AC direct driver lighting system is disclosed. According to one embodiment, the AC direct driver lighting system includes a plurality of LED groups serially connected to an AC power source, and an AC driver comprising a plurality of current sinks. Each of the plurality of current sinks is connected between a respective LED group of the plurality of LED groups and a ground. The AC direct driver lighting system further includes a valley fill circuit coupled to a target LED group of the plurality of LED groups. The valley fill circuit charges from the AC power source and supplies electrical power to the target LED group via a current path established between the AC power source and the ground via at least one of the plurality of current sinks.