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led photoelectric module and its driver chip

A technology of LED driving and LED light source, applied in the direction of light source, electric light source, electrical components, etc., can solve problems such as affecting the service life of LED light source and burning of LED driver chips, and achieve the effect of prolonging service life, low cost and preventing burning.

Active Publication Date: 2018-05-04
SHENZHEN CYT SEMICON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on one or more of the above problems, the present invention provides an LED photoelectric module and its driving chip to solve the problem in the prior art that the temperature of the LED driving chip is too high to cause the LED driving chip to burn out and affect the service life of the LED light source.

Method used

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  • led photoelectric module and its driver chip
  • led photoelectric module and its driver chip
  • led photoelectric module and its driver chip

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Embodiment 1

[0026] See figure 1 , figure 1 It is a schematic structural diagram of the LED driver chip of the LED optoelectronic module according to the preferred embodiment of the present invention. like figure 1 As shown, the LED photoelectric module of the present invention is an important part of the LED light source device, and the LED light source device also includes a base and a lampshade on the basis of the LED light source module. The LED light source module includes an LED driver chip, which is used to drive the LED light source, and mainly includes: a power supply unit 21, an over-temperature protection point adjustment unit 24, an over-temperature protection unit 23, and a negative feedback operational amplifier unit 25. The power supply unit 21 Provide a stable power supply for the LED driver chip, the over-temperature protection point adjustment unit 24 is used to adjust the over-temperature protection point of the LED driver chip, and the over-temperature protection unit...

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Abstract

The invention discloses an LED photoelectric module and a driving chip thereof. The LED driver chip is used to drive the LED light source, including: a power supply unit, an over-temperature protection point adjustment unit, an over-temperature protection unit and a negative feedback operational amplifier unit, the power supply unit provides a stable power supply for the LED driver chip, so The over-temperature protection point adjustment unit is used to adjust the over-temperature protection point of the LED driver chip, the over-temperature protection unit is used to perform over-temperature protection on the LED driver chip according to the over-temperature protection point, the The negative feedback operational amplifier unit is used for the LED driver chip to output a constant current to drive the LED light source. The LED photoelectric module and its drive chip of the present invention have the beneficial effects of preventing the LED drive chip from being burned due to overheating, effectively prolonging the service life of the LED light source device, and having low cost.

Description

technical field [0001] The invention relates to the technical field of driving LED light sources, in particular to an LED photoelectric module and an LED driving chip thereof. Background technique [0002] Due to the advantages of environmental protection, long service life, energy saving, stable performance, high luminous efficiency and small size, LED light sources have been widely used in various lighting fields, such as indoor lighting, automobiles, and consumer electronics. [0003] At present, with the rapid development of LED technology, LED light sources have been widely used in high-power lighting equipment. However, the current high-power lighting requires a large number of LEDs, some as many as hundreds. Recently, a kind of LED optoelectronic module has been widely used. The LED optoelectronic module includes a substrate, an LED driving circuit and an LED lamp arranged on the substrate. The LED driving circuit includes an LED driving chip and other necessary circ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/40H05B45/50Y02B20/30
Inventor 王泽宇张伟珊焦飞华古道雄
Owner SHENZHEN CYT SEMICON TECH CO LTD