Multi-channel light adjustable light-emitting diode driving power source

A technology of light-emitting diodes and driving power, applied in the direction of light source, electric light source, electric lamp circuit layout, etc., can solve the problems affecting the overall life of high-power LED, affecting the normal operation of LED light source, etc., and achieve the effect of improving overall reliability

Inactive Publication Date: 2012-07-04
杭州奥能照明电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the LED driver of the prior art is used, once a branch of the hybrid LED light source fails, it will inevitably affect the normal operation of the LED light sources of other branches, and even accelerate the damage of the LED light sources of other branches. Affect the overall life of high power LED

Method used

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  • Multi-channel light adjustable light-emitting diode driving power source
  • Multi-channel light adjustable light-emitting diode driving power source
  • Multi-channel light adjustable light-emitting diode driving power source

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] In view of this, the object of the present invention is to provide a multi-channel dimmable LED driving power supply, which can provide multiple outputs for driving the LED light source module, and can realize the purpose of dimming the LED light source module.

[0035] refer to figure 1 , is a structure diagram of a multi-channel dimmable light-emitting diode driving power supply provided by an embodiment of the present invention. figure 1 The drive power supply shown consists of three stages of circuits:

[0036] The first stage is a PFC module 10, which is used to receive an input AC voltage, and after performing power factor correction on the input AC voltage, output a stable DC bus voltage to the LLC module 20;

[00...

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Abstract

The invention discloses a multi-channel light adjustable light-emitting diode driving power source which comprises a PFC (Power Factor Correction) module, an LLC (Logic Link Control) module and a BUCK module, wherein the PFC module is used for receiving and inputting an alternating voltage, carrying out power factor correction and outputting a stable direct-current busbar voltage; the LLC module is used for decompressing and isolating the direct-current busbar voltage and outputting a constant low voltage lower than the direct-current busbar voltage; the BUCK module is used for outputting a constant current to an LED (Light Emitting Diode) light source module; the BUCK module adopts an L6562 chip and is used for adjusting a reference voltage through an adjustable resistance, changing a sampling peak current and an output current and adjusting the luminance of the LED light source module. The embodiment of the invention can supply multiple channels for driving the output of the LED light source module and can realize the purpose of adjusting the light of the LED light source module.

Description

technical field [0001] The invention relates to the technical field of light-emitting diodes, in particular to a multi-channel adjustable light-emitting diode drive power supply. Background technique [0002] At present, my country's power energy is relatively tight, and the stock of coal resources is limited. Many areas are prone to power supply shortages during peak periods of electricity consumption. Lighting power consumption accounts for 20% of my country's power consumption, so doing a good job in energy saving in lighting power consumption can effectively save power resources. [0003] LED (Light Emitting Diode, light emitting diode) is a semiconductor device that can directly convert electricity into visible light. LEDs were first used in the display of indicator lights, numbers and text. With the advent of white LEDs, LEDs have a low operating voltage. With the advantages of less power consumption, high luminous efficiency and long life, LED light sources are mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 杨国仁陈虹张卓益
Owner 杭州奥能照明电器有限公司
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