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:
Oct. 08, 2013
Filed:
Jul. 06, 2010
Guichao Hua, Zhejiang, CN;
Xinke Wu, Zhejiang, CN;
Xiaoli Yao, Zhejiang, CN;
Liangan GE, Zhejiang, CN;
Guichao Hua, Zhejiang, CN;
Xinke Wu, Zhejiang, CN;
Xiaoli Yao, Zhejiang, CN;
Liangan Ge, Zhejiang, CN;
Inventronics (Hangzhou), Inc., Hangzhou, CN;
Abstract
A LED drive circuit for SCR dimming including an external controller configured to receive AC voltage from a power network to convert the AC voltage to an AC voltage with a lacked phase by phase controlling the voltage through a thyristor, and a LED driver that includes a bridge rectifier configured to shape the AC voltage with the lacked phase output into a unidirectional pulse DC voltage, and a phase angle detecting circuit configured to shape the AC voltage signal output with lacked phase from the external controller into a saw-tooth wave pulse signal.