Alternating current 380V driven automatic dimming LED street lamp

A technology of LED street lights and automatic dimming, applied in the field of LED street lights, can solve the problems of increasing the total working current of LED street lights and the lack of automatic dimming function of LED street lights.

Inactive Publication Date: 2018-09-28
SHANGSI COUNTY DONGDONG ELECTRONICS TECH
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current LED street lamps are driven by a phase voltage of 220V. The wiring of the LED light-emitting board is combined in series and parallel. The total working current of the LED street lamps is relatively large, and most LED street lamps lack automatic dimming function. The patent 201210200175.8, which I was authorized in 2016, has the function of automatic dimming, but the working power supply is driven by phase voltage 220VAC. It is unavoidable to adopt series and parallel structure connection, which will increase the total working current of LED street lamps.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Alternating current 380V driven automatic dimming LED street lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0007] Such as figure 1 As shown, the rectifier circuit IC1 is a bridge-type full-wave rectifier, which uses a rectifier with a capacity of 3A. 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 above 0.90, and output a stable DC voltage of about 400V.

[0008] Such as figure 1 As shown, IC2 and peripheral components form a timer circuit. IC2 is a CD4060 IC chip. C8 and R5 form a power-on self-reset circuit. When IC2 receives power, C8 and R5 input ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an alternating current 380V driven automatic dimming LED street lamp. The alternating current 380V driven automatic dimming LED street lamp is driven by adopting a line voltage of 380VAC, rectification and output are carried out by a rectifier, and then a direct current voltage of about 400V is output by a power correction circuit and supplied to the LED street lamp as a working power supply. A LED chip of a light-emitting board circuit of the LED street lamp adopts a path of series wiring so as to reduce the defect of an excessive total working current caused by series and parallel wiring.

Description

technical field [0001] The invention relates to an LED street lamp driven by AC 380V and automatically dimmed. Background technique [0002] The current LED street lamps are driven by a phase voltage of 220V. The wiring of the LED light-emitting board is combined in series and parallel. The total working current of the LED street lamps is relatively large, and most LED street lamps lack automatic dimming function. The patent 201210200175.8, which I was authorized in 2016, has the function of automatic dimming, but the working power supply is driven by phase voltage 220VAC. It is unavoidable to adopt series and parallel structure connection, which will increase the total working current of LED street lamps. Contents of the invention [0003] An LED street lamp with automatic dimming driven by AC 380V discloses an LED street lamp driven by a line voltage of 380VAC, rectified and output by a rectifier, and then passed through a power correction circuit to output a DC voltage...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/10Y02B20/30
Inventor 不公告发明人
Owner SHANGSI COUNTY DONGDONG ELECTRONICS TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap