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LED lamp circuit based on power supply heat-dissipating structure

A technology of LED lamp circuit and heat dissipation structure, applied in the direction of electric light source, circuit layout, electroluminescent light source, etc., can solve the problems of low heat dissipation efficiency, no reverse connection protection circuit, etc., and achieve the effect of improving heat dissipation function and overall efficiency

Inactive Publication Date: 2017-02-01
CHENGDU YANXINGGUO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned prior art, the purpose of the present invention is to provide an LED lamp circuit based on a heat dissipation structure of a power supply, which solves technical problems such as low heat dissipation efficiency and no reverse connection protection circuit in the prior art.

Method used

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  • LED lamp circuit based on power supply heat-dissipating structure
  • LED lamp circuit based on power supply heat-dissipating structure

Examples

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Embodiment 1

[0017] Such as figure 1 , mainly composed of a current-limiting resistor 1, a capacitor 2, an anti-reverse connection circuit and several LED lamp beads 6, the anti-reverse connection circuit includes a comparator 3, a triode 4 and a relay 5, and the triode 4 is arranged between the comparator 3 and the relay 5 , the comparator 3 is connected to the capacitor 2, the relay 5 is set at the input end of the external power supply 7, a number of current limiting resistors 1 are set between the relay 5 and a number of LED lamp beads 6, the current limiting resistors 1 are connected in parallel, and the LED lights Bead 6 adopts a dot matrix connection structure; the anti-reverse connection circuit includes at least two high heat dissipation diodes, which are respectively arranged between the input potential point of the input voltage signal Vin and the positive pole of the DC power supply according to the flow direction of the input voltage signal Vin. Between the negative pole of th...

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Abstract

The invention discloses an LED lamp circuit based on a power supply heat-dissipating structure, relates to the technical field of LED circuits, and solves the technical problems of low heat-dissipating efficiency, no reverse connection protection circuit and the like existing in the prior art. The LED lamp circuit mainly comprises a plurality of current-limiting resistors, a capacitor, an anti-reverse connection circuit and a plurality of LED lamp beads, wherein the anti-reverse connection circuit comprises a comparer, an audion and a relay; the audion is arranged between the comparer and the relay; the comparer is connected with the capacitor; the relay is arranged at the input end of an external power supply; the current-limiting resistors are arranged between the relay and the LED lamp beads; the LED lamp beads adopt high heat-dissipating diodes; and the anti-reverse connection circuit comprises at least two high heat-dissipating diodes for disconnecting a reverse connection power supply.

Description

technical field [0001] The invention relates to the technical field of LED circuits, in particular to an LED lamp circuit based on a power supply heat dissipation structure. Background technique [0002] With the development of the economy and the progress of the society, energy conservation has become a social consensus and an inevitable development. LED lamps are an energy-saving and environmentally friendly green product, and are currently developing more and more rapidly in the lighting industry. Since LED is a sensitive semiconductor device with negative temperature characteristics, it needs to keep its working state stable during the application process. Unlike ordinary incandescent bulbs, LED can be directly connected to AC mains. LED is 2-3V For low-voltage drive, it is necessary to design a circuit that meets the requirements to drive it to work normally. At present, LED lights are usually made of several LED lamp beads in series. Due to the discreteness of LED lamp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H02H11/00F21V23/00F21V29/503F21V29/508F21V29/74F21Y115/10H05B44/00
CPCH02H11/002F21V23/00F21V29/503F21V29/508F21V29/74H05B45/50Y02B20/30
Inventor 魏霁烁柏雅惠
Owner CHENGDU YANXINGGUO TECH CO LTD