LED light source system

A light source system and diode technology, applied in the direction of electroluminescence light source, light source, electric light source, etc., can solve the problems of unable to adjust the brightness of the light source with LED light source, and achieve the effects of simple circuit, light source brightness adjustment, and simple operation

Active Publication Date: 2009-12-23
STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Abstract
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  • Application Information

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Problems solved by technology

Existing methods for adjusting the brightness of LED light sources generally use manual adjustment. Due to the existence of human error, manual adjustment often cannot accurately adjust the LED light source to the desired light source brightness.

Method used

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  • LED light source system

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Embodiment Construction

[0008] see figure 1 , a preferred embodiment of the present invention is an LED light source system 100 , which includes a controller 20 and an LED lighting device 10 . The controller 20 is an upper layer software interface, which can input different application programs to perform various digital controls. The controller 20 is electrically connected to the LED lighting device 10, and digital signals can be transmitted between the two, so that the digital control of the LED lighting device 10 is realized through the controller 20, and the brightness level value of the LED lighting device 10 is displayed on the The display screen of the controller 20. The LED lighting device 10 includes a serial port circuit 11, a single chip microcomputer 13 (Single Chip Micyoco, SCM), a digital-to-analog conversion circuit 14, a constant current control circuit 15 and an LED lamp board 17, and the above components are electrically connected in sequence. The LED lighting device 10 also inclu...

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Abstract

The invention provides an LED (Light-Emitting Diode) light source system comprising a controller and an LED lighting device elastically connected with the controller. The LED lighting device comprises a power supply and an LED lamp panel and also comprises a singlechip, a digital to analog conversion circuit and a constant current control circuit; the controller transmits a control signal for confirming a brightness level value to the singlechip which stores the brightness level value in a digital signal mode and transmits the brightness level value to a digital to analog conversion circuit; the digital to analog conversion circuit converts the brightness level value into a voltage analogue quantity; and the constant-current control circuit converts the voltage analogue quantity into a stable current and controls the brightness of the LED lamp panel by the current. The LED light source system has simple circuit and easy operation and can accurately adjust the brightness of a light source.

Description

technical field [0001] The invention relates to a light emitting diode light source system, in particular to a light emitting diode light source system capable of precisely controlling luminance. Background technique [0002] Light Emitting Diode (LED) light sources, as a relatively novel lighting technology, have been increasingly used in various places such as people's life and production. [0003] In different environments such as living places and production workshops, people have different requirements for the brightness of LEDs, which requires accurate adjustment of LED light sources to meet people's various needs. Existing methods for adjusting the brightness of LED light sources generally use manual adjustment. Due to the existence of human error, manual adjustment often cannot accurately adjust the LED light source to the required brightness of the light source. Contents of the invention [0004] In view of the above problems, it is necessary to provide an LED li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02F21V23/00F21Y101/02
CPCH05B33/0848H05B45/14
Inventor 游德胜魏仁忠王海良
Owner STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO
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