Invention Grant
- Patent Title: Apparatus and method for dimming signal generation for a distributed solid state lighting system
- Patent Title (中): 一种分布式固态照明系统调光信号产生的装置和方法
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Application No.: US14057200Application Date: 2013-10-18
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Publication No.: US09078327B2Publication Date: 2015-07-07
- Inventor: Leonard Simon Livschitz , Anatoly Shteynberg , Vladimir Y. Dvadnenko
- Applicant: Luxera, Inc.
- Applicant Address: US CA San Ramon
- Assignee: Luxera, Inc.
- Current Assignee: Luxera, Inc.
- Current Assignee Address: US CA San Ramon
- Agency: Gamburd Law Group LLC
- Agent Nancy R. Gamburd
- Main IPC: H05B33/08
- IPC: H05B33/08

Abstract:
Exemplary systems, methods and apparatuses for providing dimming in a distributed solid-state lighting system are disclosed. An exemplary dimming signal generator is coupleable to a controller or a current generator for a plurality of LEDs, and includes a first resistive voltage divider to sense an input DC voltage; a current sensor to sense a current level of the plurality of LEDs; a first operational amplifier to compare the sensed input DC voltage to a reference voltage level and to provide a comparator output signal; and a current path to combine the comparator output signal with the sensed LED current level to provide a combined signal for current level feedback for control of the LED current level. The dimming signal generator may optionally include other components to generate a PWM signal and also to provide a resistive network to divert LED current in response to the comparator output signal.
Public/Granted literature
- US20140042933A1 Apparatus and Method for Dimming Signal Generation for a Distributed Solid State Lighting System Public/Granted day:2014-02-13
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