Alternate-current 380 V driven LED street light driving device with automatically light adjusting function

An LED street light and automatic dimming technology, applied in the light source, electric light source, electroluminescent light source, etc., can solve the problems of the lack of automatic dimming function of the LED street light and the increase of the total working current of the LED street light.

Inactive Publication Date: 2018-10-12
SHANGSI COUNTY DONGDONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current LED street lamp drivers are all driven by phase voltage 220V. The wiring of the LED light-emitting board is combined in series and parallel. The total working current of the LED street lamp is relatively large, and most of the LED street lamps lack automatic dimming function. ,...

Method used

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  • Alternate-current 380 V driven LED street light driving device with automatically light adjusting function

Examples

Experimental program
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Effect test

Embodiment Construction

[0006] like figure 1 As shown, the AC filter circuit is composed of C1, C2, L1, L2, L3, of which C1, C2 are safety capacitors, L1, L2 are differential mode inductors, and L3 is a common mode inductor. Interference wave filtering, improve the quality of sine wave power supply with line voltage 380VAC input.

[0007] like figure 1 As shown, the rectifier circuit IC1 is a bridge full-wave rectifier, and a 3A capacity rectifier is selected. Its input power is AC 380V, and its output is pulsating DC. After passing through the power correction circuit composed of D1, D2, D3, C3, C4 and R1, It can effectively improve harmonic distortion and power factor, increase the power factor to more than 0.90, and output a stable DC voltage of about 400V.

[0008] like figure 1 As shown, IC2 and peripheral components form a timer circuit. IC2 is an IC chip of CD4060. C8 and R5 form a power-on self-reset circuit. When IC2 receives power, C8 and R5 input a positive pulse voltage signal to pin 1...

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Abstract

The invention discloses an alternate-current 380 V driven LED street light driving device with an automatically light adjusting function. The driving device is driven by adopting wire voltage 380 VAC,rectifying and outputting are conducted through a rectifier, and a direct-current voltage of approximately 400 V is output through a power correction circuit to supply LED street lamps as a working power supply. A serial connection wiring is adopted by LED chips of illumination board circuits of the LED street lamps, and the problem of excessively large total working current brought by serial connection and parallel connection wiring is reduced.

Description

technical field [0001] The invention relates to an LED street lamp driver with AC 380V driving and automatic dimming. Background technique [0002] The current LED street light drivers are driven by a phase voltage of 220V. The wiring of the LED light-emitting board adopts a combination of series and parallel connections. The total working current of the LED street lights is relatively large, and most of the LED street lights lack automatic dimming , the patent 201210200175.8 authorized by me in 2016 has automatic dimming function, but the working power supply is driven by phase voltage 220VAC. The problem is that when the power of the LED street light is greater than 100W, the wiring of the light-emitting board cannot be connected in series. , and it is inevitable to use the series and parallel structure connection, which will increase the total working current of the LED street lamp. SUMMARY OF THE INVENTION [0003] An LED street lamp driver with AC 380V driving and au...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 不公告发明人
Owner SHANGSI COUNTY DONGDONG ELECTRONICS TECH
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