Invention Grant
- Patent Title: Lamp driver having a shutdown interface circuit
- Patent Title (中): 灯驱动器具有关闭接口电路
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Application No.: US13524607Application Date: 2012-06-15
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Publication No.: US08853967B2Publication Date: 2014-10-07
- Inventor: Kurt S. Wilcox , Pierre Deschenes , Matthew K. Murphy , Bernd Clauberg
- Applicant: Kurt S. Wilcox , Pierre Deschenes , Matthew K. Murphy , Bernd Clauberg
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: McCraken & Frank LLC
- Main IPC: H05B37/02
- IPC: H05B37/02
Abstract:
A lamp driver responsive to a control signal that is variable in a predetermined control range includes a circuit operable in response to a value of the control signal within the predetermined control range to develop a first current and a lamp control voltage dependent upon the value of the control signal. A shutdown interface is operable in response to a value of the control signal outside of the predetermined control range to develop a second current to turn off a lamp.
Public/Granted literature
- US20130334967A1 LAMP DRIVER HAVING A SHUTDOWN INTERFACE CIRCUIT Public/Granted day:2013-12-19
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