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:
Jun. 02, 2015
Filed:
Jun. 19, 2013
Richtek Technology Corporation, Chupei, Hsinchu, TW;
Tsung-Wei Huang, Jubei, TW;
Shui-Mu Lin, Longjing Township, Taichung County, TW;
Huan-Chien Yang, Pingtung, TW;
Nang-Ching Yeung, Zhubei, TW;
Ti-Ti Liu, Taipei, TW;
RICHTEK TECHNOLOGY CORP., Chupei, Hsinchu, TW;
Abstract
A LED driver using a PWM signal for dimming control includes a power converter and a current regulator. The power converter provides an output voltage and a load current for a plurality of LEDs. The current regulator provides a load current dependent signal for the power converter to speed up load transient response caused by variation of the load current, to reduce the ripple of the output voltage, and thereby to avoid audio noise during PWM dimming.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile