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Light emitting diode (LED) lighting device having open/short circuit protection function and lighting circuit

A LED lighting and short-circuit protection technology, applied in the field of lighting, can solve the problems of short service life of lighting circuits and high maintenance costs, and achieve the effects of reducing maintenance frequency, reducing maintenance costs, and increasing power consumption and heat generation

Inactive Publication Date: 2010-07-14
ZHEJIANG XIZI OPTOELECTRONICS TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an LED lighting device with open / short circuit protection function to overcome the problems of short service life and high maintenance cost of the lighting circuit of the existing LED lamps
[0009] Another object of the present invention is to provide two kinds of lighting circuits to overcome the problems of short service life and high maintenance cost of lighting circuits of existing LED lamps

Method used

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  • Light emitting diode (LED) lighting device having open/short circuit protection function and lighting circuit
  • Light emitting diode (LED) lighting device having open/short circuit protection function and lighting circuit
  • Light emitting diode (LED) lighting device having open/short circuit protection function and lighting circuit

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Embodiment Construction

[0031] The main idea of ​​the present invention is to use multiple constant current sources to individually drive one LED (Light Emitting Diode, Light Emitting Diode), so that even if a certain LED is short-circuited or opened, it will not affect the normal power supply of other LEDs. Moreover, the present invention also configures a protection element for each LED to ensure that the open-circuit LED will not affect the normal operation of other LEDs, thereby greatly improving the service life of the LED lighting device.

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] The present invention proposes an LED lighting device with open / short circuit protection function, which includes at least two light source modules and a power supply, the power supply is respectively connected to all light source modules, and provides constant current power supply for each light source module independently. Since the power ...

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Abstract

The invention discloses a light emitting diode (LED) lighting device having an open / short circuit protection function and a lighting circuit. The LED lighting device having the open / short circuit protection function comprises at least two light source modules, at least two LED sets, a power supply, and a plurality of protection components, wherein the LED sets are correspondingly arranged in the light source modules one by one, and each LED set forms a mutually independent loop and comprises a plurality of LEDs connected in series; the power supply is connected with and used for providing constant current electricity for the LED sets respectively; and the protection components, of which the number is corresponding to that of the LEDs, are arranged in the light source modules and used for ensuring that the open LEDs do not affect the normal work of other LEDs. The LED lighting device has the advantages of long service life and low maintenance cost.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to an LED lighting device and a lighting circuit with an open / short circuit protection function. Background technique [0002] At present, with the development trend of energy saving and emission reduction, LED (Light Emitting Diode, Light Emitting Diode) is more and more widely used due to its energy saving, environmental protection, high luminous efficiency, and long life. , with high luminous efficiency, it is regarded as a cold light source, and it has a tendency to replace traditional incandescent and fluorescent lamps. [0003] In recent years, lamps using 1-3W high-power LEDs have increased year by year, and their power can range from a few watts to hundreds of watts. There are usually two ways to connect LEDs inside the existing high-power lamps: [0004] The first is to use a series structure, such as figure 1 As shown, multiple LEDs are connected in series to the power...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V23/00F21V29/00F21V17/00H05B37/02F21Y101/02F21V29/503
Inventor 陈凯章子奇傅少钦赵雅杰
Owner ZHEJIANG XIZI OPTOELECTRONICS TECH
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