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LED lighting rectification control circuit

A LED lighting and control circuit technology, applied in the field of lighting, can solve the problems of unprotected operation of lighting fixtures, high production costs, complex structure, etc., and achieve high practical value and promotion value, low input cost, and accurate measurement data.

Inactive Publication Date: 2018-04-20
CHENGDU XINNENG INTERNET TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above shortcomings, the purpose of the present invention is to provide a LED lighting rectification control circuit, which mainly solves the problems in the prior art such as complex structure, high production cost, and unprotected operation of lighting fixtures.

Method used

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Embodiment

[0021] An LED lighting rectification control circuit, including an AC contactor connected to an external sine wave AC, a rectification current and a driving circuit respectively connected to the AC contactor, a voltage acquisition circuit connected to the rectification circuit, and an A / D converter connected to the voltage acquisition circuit Device, the AT89C51 single-chip microcomputer connected to the A / D converter at the P1 end and connected to the driving circuit at the P0 end.

[0022] The rectified current in the control circuit includes the input port Port1, the positive input is connected to the comparator A1 of the input port Port1, the output is connected to the output of the comparator A1 and the input is connected to the negative input of the comparator A1 Diode VD1, the output is connected to the output of the comparator A1 The diode VD2, the resistor R2 connected in series with the input of the diode VD1 and the input of the diode VD2, the resistor R1 with one en...

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PUM

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Abstract

The invention discloses an LED lighting rectification control circuit. By the LED lighting rectification control circuit, the problems of structure complexity, high production cost and no protection running of a lighting lamp in the prior art are mainly solved. The control circuit comprises an AC contactor, a rectification circuit, a driving circuit, a voltage acquisition circuit, an A / D converterand a singlechip microcomputer, wherein the AC contactor is externally connected with a sine wave alternating current, the rectification circuit and the driving circuit are connected with the AC contactor, the voltage acquisition circuit is connected with the rectification circuit, the A / D converter is connected with the voltage acquisition circuit, a P1 end of the singlechip microcomputer is connected with the A / D converter, and a P0 end of the singlechip microcomputer is connected with the driving circuit. By the scheme, the LED lighting rectification control circuit has the advantages of simple structure, running stability, detection accuracy, low cost and the like, and has high practical value and promotion value in the technical field of lighting.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to an LED lighting rectification control circuit. Background technique [0002] With the continuous development of lighting technology, intelligent lighting technology is becoming more and more mature. LED lighting fixtures have the characteristics of strong brightness, low power consumption, and long service life. Traditional LED lighting fixtures are equipped with a full-bridge rectifier circuit to convert the input sine wave to AC. To form the required direct current, the rectification method is more complicated, which increases the production input cost. In addition, most lighting fixtures have no working voltage collection, so that the lighting fixtures operate under unprotected conditions. If traditional protection devices are used, the production cost will increase. [0003] Therefore, there is an urgent need to improve the lighting rectification control circuit. While prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00H05B45/34Y02B20/30
Inventor 庄慧敏
Owner CHENGDU XINNENG INTERNET TECH CO LTD
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