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Light-emitted diode (LED) actuator

A technology of LED driver and voltage module, which is applied in the field of LED lighting, can solve the problems of low reliability of the front-stage constant voltage module, and achieve the effects of easy implementation, reduced maintenance times, and improved overall reliability

Active Publication Date: 2015-04-15
INVENTRONICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the problem that those skilled in the art need to solve is the problem of low reliability of the pre-stage constant voltage module

Method used

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  • Light-emitted diode (LED) actuator
  • Light-emitted diode (LED) actuator
  • Light-emitted diode (LED) actuator

Examples

Experimental program
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Embodiment Construction

[0064] 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.

[0065] see figure 1 , which is a structure diagram of Embodiment 1 of the LED driver provided by the present invention.

[0066] The present invention provides an LED driver, including: a constant voltage module 200, a constant current module 300 and at least one backup constant voltage module 400;

[0067] The constant voltage module 200 is connected in parallel with each backup constant voltage module 400;

[0068] The constant voltage module 200 and the backup constant voltage module 400 are used to convert the power supply 100 into a constant voltage and output it to the constant current module 300 at the same time; when any module of the constant voltage module 200 and the backup constant voltage module 400 fails , the remaining...

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Abstract

The invention provides a light-emitted diode (LED) actuator which comprises a constant voltage module, a constant current module and at least one back-up constant voltage module. The constant voltage module is connected with each back-up constant voltage module in parallel, the constant voltage module and the back-up constant voltage module are used for transforming an input end voltage to a constant voltage and outputting the constant voltage to the constant current module simultaneously when work normally, and a surplus module works normally when either of the constant voltage module or the back-up constant voltage module failures. The constant current module is used for transforming the constant voltage to a constant current and outputting the constant current to an LED load. Due to the fact that the constant voltage module is connected with the back-up constant voltage module in parallel, the constant voltage module and the back-up constant voltage module supply power to a after stage constant current module together when work normally, and when either of the modules which backup each other failures and is off, the surplus module supplies power to the after stage constant current module naturally, and switchover from a working module to a failure module is needless. The LED actuator is simple and easy to implement.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to an LED driver. Background technique [0002] LED light sources are used in more and more occasions due to their advantages of long life, high luminous efficiency, and environmental protection. [0003] Since the life of the LED light source itself can be as long as 50,000 hours, the main reason for the LED lamp to go out is the failure of the driver of the LED light source. [0004] Among the failure causes of LED light source drivers, the failure of various semiconductor devices is the most prominent. The main reason for the failure is that the LED light source itself heats up more seriously. The LED driver is usually placed inside the lamp, close to the LED light source, and the high temperature working environment will cause LED A semiconductor device inside the drive has failed. [0005] In the prior art, LED lamps are generally equipped with an LED driver for the LED ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 华桂潮葛良安
Owner INVENTRONICS HANGZHOU