Alternating-current drive circuit of LED streetlight

An LED street lamp, AC drive technology, applied in the electronic field, can solve the problems of increasing the service life of power supply and lamps, and achieve the effect of reducing design cost, reducing volume, and simple and reasonable structure

Inactive Publication Date: 2014-03-26
浙江中赛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the shortcomings of the above-mentioned prior art and provides an AC drive circuit for LED street lamps. The service life of the entire power supply and lamps saves the power supply shell, reduces the space occupied by the circuit, and meets people's needs

Method used

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  • Alternating-current drive circuit of LED streetlight
  • Alternating-current drive circuit of LED streetlight

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Embodiment Construction

[0017] The present invention will be further explained below in conjunction with the drawings:

[0018] With reference to the drawings, this LED street lamp AC drive circuit includes an input terminal 1, a lightning protection circuit 2, a rectifier circuit 3, and a parallel chip control circuit 4. The input terminal 1 is connected to the lightning protection circuit 2, and the lightning protection circuit 2 and the rectifier circuit 3 Connected, the rectifier circuit 3 is connected to the parallel chip control circuit 4, the parallel chip control circuit 4 is connected with a number of strings of LED light sources 5, each string of LED light sources 5 includes a number of LED light sources 5, the lightning protection circuit 2 includes an anti-common-mode surge circuit 6 And the anti-differential-mode surge circuit 7, the anti-common-mode surge circuit 6 includes a varistor 8, an inductor 9, and an inductor 10. The varistor 8 is connected to the inductor 9, and the inductor 9 is ...

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PUM

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Abstract

An alternating-current drive circuit of an LED streetlight comprises an input end, a lightning protection circuit, a rectification circuit and a parallel chip control circuit. The input end is connected with the lightning protection circuit which is connected with the rectification circuit, the rectification circuit is connected with the parallel chip control circuit, and a plurality of LED string light sources are connected to the parallel chip control circuit. The alternating-current drive circuit is simple and reasonable in structure, convenient to use, good in effect and easy to promote; circuit structure is simplified, quantity of elements is reduced, design difficulty is lowered, switch transformer and electrolytic capacitor are omitted, electromagnetic radiation generated by the switch transformer is avoided, service life of the LED drive circuit is prolonged, service life of the overall power supply and lamp is prolonged, the drive circuit can be welded to a lamp panel to realize integration of the two, a power supply casing is omitted, and space occupation of the drive circuit is reduced.

Description

Technical field [0001] The invention belongs to the field of electronic technology, in particular to an AC drive circuit for LED street lamps. Background technique [0002] At present, the LED street lamp driving circuit in the prior art usually includes a lightning protection circuit, an EMI circuit, a rectifier circuit, a filter circuit, a PFC circuit, a PFC control circuit, a power conversion circuit, a conversion control circuit, a VCC power supply circuit, and a secondary There are many circuits in the number of stage filter circuits, output circuits, and protection circuits. The specific disadvantages are as follows: [0003] 1. The large number of circuits can easily lead to a very complicated circuit structure and difficult design; [0004] 2. Due to the large number of circuits, the circuit cannot be built on the light board, and an independent power supply casing is required, which increases the space occupation; [0005] 3. In the prior art, the driving power supply of LE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 何俊兴何正梁毛庆斌徐培亮
Owner 浙江中赛科技有限公司
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