Invention Grant
US08456106B2 LED driver with extended dimming range and method for achieving the same
有权
LED驱动器具有扩展的调光范围和实现相同的方法
- Patent Title: LED driver with extended dimming range and method for achieving the same
- Patent Title (中): LED驱动器具有扩展的调光范围和实现相同的方法
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Application No.: US12564176Application Date: 2009-09-22
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Publication No.: US08456106B2Publication Date: 2013-06-04
- Inventor: Alexander Mednik , Rohit Tirumala
- Applicant: Alexander Mednik , Rohit Tirumala
- Applicant Address: US CA Sunnyvale
- Assignee: Supertex, Inc.
- Current Assignee: Supertex, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Weiss & Moy, P.C.
- Agent Jeffrey D. Moy
- Main IPC: H05B37/02
- IPC: H05B37/02
Abstract:
A circuit for powering of a Light Emitting Diode (LED) string has a switching power converter. A brightness control circuit is coupled to the switching power converter to allow a duration of a conductive state of the power converter to exceed a duration of a conductive state of the LED string for maintaining a current magnitude in the LED string constant.
Public/Granted literature
- US20100259177A1 LED DRIVER WITH EXTENDED DIMMING RANGE AND METHOD FOR ACHIEVING THE SAME Public/Granted day:2010-10-14
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