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. 20, 2015
Filed:
Feb. 13, 2015
Unity Opto Technology Co., Ltd., New Taipei, TW;
Chih-Hsien Wu, New Taipei, TW;
Wei Chang, New Taipei, TW;
Huan-Ying Lu, New Taipei, TW;
Kai-Cheng Chuang, New Taipei, TW;
Che-Hao Kuo, New Taipei, TW;
Unity Opto Technology Co., Ltd., New Taipei, TW;
Abstract
A driver circuit adopting a primary side regulating architecture and an isolation transformer for improving LED flickers includes a transformer, a primary side regulating module, a feedback portion, a driving module and a dimming portion. The transformer includes an input coil, an auxiliary coil, a driving coil, and a dimming coil. The primary side regulating module is electrically coupled to the input coil; the feedback portion is electrically coupled to the auxiliary coil and the primary side regulating module; the driving module is electrically coupled to the driving coil; the dimming portion is electrically coupled to the dimming coil and the driving module. When a dimming signal inputted to the dimming portion has a voltage of 1V-10V, and the driver circuit is applied to a panel light, the LED flicker is improved effectively.