Invention Grant
- Patent Title: Low intensity dimming circuit for an LED lamp and method of controlling an LED
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Application No.: US13728660Application Date: 2012-12-27
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Publication No.: US09661706B2Publication Date: 2017-05-23
- Inventor: Matthew K. Murphy
- Applicant: Ruud Lighting, Inc.
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: McCracken & Gillen LLC
- Main IPC: H05B33/08
- IPC: H05B33/08

Abstract:
A driver is connectable to an external power supply and configured to output a variable driving current for one or more loads, such as LEDs. A low intensity dimming module is operable to divert some or all of the driving current away from the LEDs when a user selects a very low level of light intensity so that the driver has a constant minimum load. The low intensity dimming module prevents performance issues that commonly affect drivers under light load conditions.
Public/Granted literature
- US20140184076A1 LOW INTENSITY DIMMING CIRCUIT FOR AN LED LAMP AND METHOD OF CONTROLLING AN LED Public/Granted day:2014-07-03
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