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. 09, 2017
Filed:
Sep. 14, 2015
Applicant:
Fairchild Korea Semiconductor Ltd., Bucheon-si, KR;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H02M 3/335 (2006.01); H02M 1/42 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 1/4258 (2013.01); Y02B 70/126 (2013.01);
Abstract
A power supply device according to the present invention includes: a filter capacitor coupled to a line to which an input voltage that is passed through a dimmer is supplied; a discharge switch coupled to the filter capacitor through the line; and a main switch receiving the input voltage and controlling power transmission. The power supply device performs input voltage control for shaping the input voltage with a predetermined pattern using the discharge switch.