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:
Jun. 02, 2014
Fairchild Korea Semiconductor Ltd., Bucheon-si, KR;
SangCheol Moon, Daejeon, KR;
Gwanbon Koo, Bucheon-si, KR;
Abstract
A power supply apparatus and a driving method thereof are disclosed The power supply apparatus includes: a dimmer controlling externally input power; a converter including a switch, and converting an output of the dimmer according to a duty of the switch and supplying a first current to a load; a dimming feedback unit receiving a first voltage corresponding to the first current, and having a finite gain in a DC state; and a controller controlling the duty of the switch according to an output of the dimming feedback unit. A duty of the switch is controlled according to an output of such a dimming feedback unit so that a dimming operation is performed.