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LED dimming system

An LED module and dimming technology, which is applied in the field of dimming, can solve the problems of complex circuit, complex control, and increased circuit cost of the dimming system, and achieve the effects of convenient control, low cost, and simple structure

Active Publication Date: 2014-05-28
INVENTRONICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Each LED branch has its own AC / DC driver, which will make the circuit of the whole dimming system more complicated, and the control will be more complicated, which will increase the cost of the whole circuit

Method used

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Embodiment Construction

[0057] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0058] see figure 2 , which is a structural diagram of Embodiment 1 of the LED centralized dimming system provided by the present invention.

[0059] The LED dimming system provided by the embodiment of the present invention includes: a centralized driving module 201, at least one LED module, and each LED module includes at least one LED branch circuit;

[0060] Such as figure 2 As shown, all LED modules are connected in parallel, figure 2 Only the first LED module 202 and the nth LED module 203 are shown in .

[0061] The input terminal of the centralized driving module 201 is connected to the power supply Vin, and the centralized driving module 201 receives a control signal representing an adjustment command, and is used to out...

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PUM

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Abstract

Disclosed is an LED dimming system, comprising: an integrated driver module, and at least one LED module. Each LED module comprises at least one LED branch. An input end of the integrated driver module is connected to a power source. The integrated driver module receives a control signal indicating an adjustment instruction, and is used to output a DC bus voltage to each LED module, wherein the DC bus voltage carriers the adjustment instruction. Each LED module is used to detect the adjustment instruction carried in the DC bus voltage, and adjust the current in the LED branch in the LED module according to the adjustment instruction. The LED dimming system merely uses one integrated driver module, has a simple structure and is easy to control. Therefore, the cost of the whole system is low.

Description

technical field [0001] The invention relates to the technical field of dimming, in particular to an LED dimming system. Background technique [0002] At present, the dimming system of LED lighting follows the dimming system of incandescent lamps, because the cost of dimming system of incandescent lamps is relatively low. see figure 1 , which is a dimming system of LED lighting lamps in the prior art. [0003] The dimming system of the LED lighting lamp includes an AC power supply 101, an AC chopper dimmer 102, n drivers and n LED branches. Among them, the n LED branches are A1, A2, and An. [0004] The output end of the AC power supply 101 is connected to an AC chopper dimmer 102; the AC chopper dimmer 102 is used to uniformly dim n drivers connected in parallel. Each driver corresponds to one LED branch. [0005] If the driver is arranged inside the LED light source, the LED light can be directly connected to the existing incandescent lighting system without changing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/02H05B37/02
CPCH05B37/0263H05B47/185
Inventor 华桂潮姜熠葛良安柳杨
Owner INVENTRONICS HANGZHOU