Intensively power-supplied light-emitting diode (LED) dimming system
A technology of centralized power supply and LED light source, applied in the field of LED dimming system, can solve the problems of power grid pollution, stroboscopic lighting and other problems
Inactive Publication Date: 2013-07-24
SUZHOU SOFER ELECTRONICS & TECH CO LTD
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[0004] There are also some problems in the existing LED dimming system. For example, the existing LED light source and LED power supply can only be installed at close distances. One power supply drives one LED light source, and the thyristor is used for dimming. with strobe
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[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0022] Such as figure 1 As shown, a centralized power supply LED dimming system includes a main power supply and a wireless module connected to the main power supply, a power converter, and an LED light source. The total power supply output voltage forms a bus voltage through a DC bus to drive multiple LED light sources. Each LED light source is equipped with a power converter, and the total power output voltage is determined by the setting given by the wireless module, and the power of the LED light source is adjusted by the size of the bus voltage. Further, the total power supply output voltage is a low-voltage DC voltage, the bus voltage can be changed within a certain ra...
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The invention provides an intensively power-supplied light-emitting diode (LED) dimming system which comprises a main power supply, a wireless module, a power converter and LED light sources, wherein the wireless module, the power converter and the LED light sources are respectively connected with the main power supply, the voltage which is output by the main power supply is formed into a bus voltage through a direct-current bus to drive a plurality of LED light sources, each LED light source is matched with the power converter, the magnitude of the voltage which is output by the main power supply is determined by the setting given by the wireless module, and the magnitude of the power of the LED light sources are adjusted through the magnitude of the bus voltage. According to the intensively power-supplied LED dimming system, dynamic resistance of an LED is expanded through the specially designed power supply converter, long-distance multi-light parallel connection can be conducted, a function of adjusting power of the LED and the like is achieved through adjustment of the bus voltage, therefore, multi-light parallel-connection dimming can be achieved, and no stroboscopic phenomenon exists.
Description
Technical field [0001] The invention relates to the field of indoor lighting systems, in particular to an LED dimming system with centralized power supply. Background technique [0002] LED dimming technology is an important technology in the development of LED lighting technology. Through dimming, the illuminance of the LED can be intelligently controlled, which can further improve the energy-saving and high-efficiency performance of the LED. Therefore, the LED dimming technology has a lot of room for development in applications. [0003] At present, the LED dimming that is widely used is mostly through the integration of the dimming control link in the LED driving power supply, and the manual control of the brightness of the lamp is realized through the mechanical dimming controller. Such control accuracy is not high, and real-time monitoring cannot be achieved. [0004] The existing LED dimming system also has some problems. For example, the existing LED light source and LED pow...
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IPC IPC(8): H05B37/02
CPCY02B20/46Y02B20/40
Inventor 袁开见
Owner SUZHOU SOFER ELECTRONICS & TECH CO LTD