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. 29, 2016
Filed:
Oct. 09, 2015
Applicants:
Citizen Holdings Co., Ltd., Nishitokyo-shi, Tokyo, JP;
Citizen Electronics Co., Ltd., Fujiyoshida-shi, Yamanashi, JP;
Inventor:
Takashi Akiyama, Sayama, JP;
Assignees:
CITIZEN HOLDINGS CO., LTD., Tokyo, JP;
CITIZEN ELECTRONICS CO. LTD., Yamanashi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H05B 33/089 (2013.01); H05B 33/0845 (2013.01);
Abstract
An LED drive circuit includes a rectification circuit configured to rectify an alternating-current voltage that is input via a dimmer circuit, a delay circuit having a switch, and a light emitting unit including an LED array including LEDs connected in series, wherein the delay circuit turns on the switch when a predetermined time elapses after the alternating-current current is input, and the rectification circuit and the LED array are directly connected when the switch is on.