Invention Grant
- Patent Title: Dynamic power saving pulse width modulated LED driver circuit
- Patent Title (中): 动态省电脉宽调制LED驱动电路
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Application No.: US12534954Application Date: 2009-08-04
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Publication No.: US08148914B2Publication Date: 2012-04-03
- Inventor: Jonne J. Sebastian Lindeberg , Tri Cao Nguyen , Suribhotla Rajasekhar
- Applicant: Jonne J. Sebastian Lindeberg , Tri Cao Nguyen , Suribhotla Rajasekhar
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent William B. Kempler; Wade J. Brady III; Frederick J. Telecky, Jr.
- Main IPC: H05B37/02
- IPC: H05B37/02
Abstract:
In accordance with an aspect of the present invention, an LED driving circuit includes a digital-to-analog converter and a driving portion. The circuit is operable to turn off the digital-to-analog converter at times when the driving portion is not providing a high signal. As such the digital-to-analog converter will waste less energy.
Public/Granted literature
- US20100164396A1 DYNAMIC POWER SAVING PULSE WIDTH MODULATED LED DRIVER CIRCUIT Public/Granted day:2010-07-01
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