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:
Sep. 01, 2015
Filed:
Aug. 06, 2013
Beyond Innovation Technology Co., Ltd., Taipei, TW;
Kuang-Yu Jung, Taipei, TW;
Chiu-Yuan Lin, Taipei, TW;
Beyond Innovation Technology Co., Ltd., Taipei, TW;
Abstract
A load driving apparatus relating to light-emitting-diodes (LEDs) is provided. In the invention, a compensation voltage on a compensation pin (CMP) of a control chip does not change in response to (or with) the variation (i.e. enabling and disabling) of a pulse-width-modulation (PWM) signal for dimming. In other words, regardless of whether the PWM signal for dimming is enabled or disabled, the compensation voltage on the compensation pin of the control chip maintains unchanged. Therefore, an LED string at the current switching transient does not have the generation of over-shoot current.