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:
Dec. 06, 2016
Filed:
Jun. 14, 2011
Saijun Mao, Shanghai, CN;
Yunfeng Liu, Shanghai, CN;
Xiaoming Yuan, Shanghai, CN;
Yingqi Zhang, Shanghai, CN;
Charles Adrian Becker, Schenectady, NY (US);
Junhui Fei, Shanghai, CN;
Jian Wang, Shanghai, CN;
Saijun Mao, Shanghai, CN;
Yunfeng Liu, Shanghai, CN;
Xiaoming Yuan, Shanghai, CN;
Yingqi Zhang, Shanghai, CN;
Charles Adrian Becker, Schenectady, NY (US);
Junhui Fei, Shanghai, CN;
Jian Wang, Shanghai, CN;
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Abstract
A system having an alternating current (AC) driven LED unit, an AC voltage regulator, and a controller is provided. The AC driven LED unit includes a first LED and a second LED coupled in reverse parallel. The AC voltage regulator is operable to receive AC voltage originating from an AC voltage source, regulate the AC voltage according to control signals from the controller, and apply regulated AC voltage to the AC driven LED unit, so as to enable the first LED and the second LED to emit light according to the regulated AC voltage. In addition, a method is provided for driving the LED by regulating the AC voltage. By regulating the AC voltage using the AC voltage regulator, benefits of restraining voltage fluctuations, reducing THD, improving power factor, providing dimming control, and mitigating flicker phenomenon can be achieved.