Invention Grant
- Patent Title: Parallel constant current LED driving units for driving a LED string and method of performing the same
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Application No.: US13586296Application Date: 2012-08-15
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Publication No.: US09875697B2Publication Date: 2018-01-23
- Inventor: Tae-kyoung Kang , Su-jin Lee , Gyu-ho Lim
- Applicant: Tae-kyoung Kang , Su-jin Lee , Gyu-ho Lim
- Applicant Address: KR Cheongju-si
- Assignee: Magnachip Semiconductor, Ltd.
- Current Assignee: Magnachip Semiconductor, Ltd.
- Current Assignee Address: KR Cheongju-si
- Agency: NSIP Law
- Priority: KR10-2011-0087460 20110830; KR10-2012-0053859 20120521
- Main IPC: G09G3/34
- IPC: G09G3/34 ; H05B33/08
Abstract:
A Light Emitting Diode (LED) driver apparatus and a method of driving an LED array are provided. A Light Emitting Diode (LED) driver apparatus includes: a DC-DC converter configured to supply a driving voltage to an LED array, a plurality of LED drivers configured to drive the LED array according to a dimming signal, in which the plurality of LED drivers are connected to one another in parallel to supply currents to the LED array.
Public/Granted literature
- US20130050289A1 LED DRIVER APPARATUS Public/Granted day:2013-02-28
Information query
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