Unlock instant, AI-driven research and patent intelligence for your innovation.

A dual-tube single-buck LED driving power supply device and constant current control method

A technology for driving power supply and LED lamp beads, which is applied in the direction of electric light source, lighting device, electroluminescence light source, etc., to achieve the effect of simplifying the circuit structure and stabilizing the LED working current

Active Publication Date: 2019-01-04
厦门市爱维达电子有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a topological structure and constant current driving method of LED lamp driving power supply capable of realizing power factor correction. driver problem

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
  • A dual-tube single-buck LED driving power supply device and constant current control method
  • A dual-tube single-buck LED driving power supply device and constant current control method
  • A dual-tube single-buck LED driving power supply device and constant current control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0020] see figure 1 , a double-tube single-buck LED driving power supply device of the present invention, comprising: a power supply AC, a control logic circuit, a switch K1, a switch K2, a diode D1, a diode D2, a diode D3, an inductor LS, a capacitor CS, and several LEDs of LED1-LEDn Lamp beads; switches K1 and K2 are three-terminal devices, which are two on-off contact terminals and one control terminal respectively. Through the control of the control terminal, the on and off of the two on-off contact terminals can be controlled; the control logic circuit has Input terminal 3, input terminal 4, output terminal 1, output terminal 2, input terminal 3 is used to receive the voltage signal at both ends of the power supply AC, input terminal 4 is used to receive the current signal flowing through the resistor RS, and output terminal 1 is used to control The con...

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 discloses a double-tube single-buck LED driving power supply device, which includes a power supply AC, a control logic circuit, a switch K1, a switch K2, a diode D1, a diode D2, a diode D3, an inductor LS, a capacitor CS and several LED lamp beads (identified It is composed of LED1-LEDn); the switches K1 and K2 are three-terminal devices; the control logic circuit has two pairs of input terminals and two output terminals, the input terminals are used to receive the voltage signal at both ends of the power supply AC, and the input terminals are used for The current signal flowing through the resistor RS is received, the output terminal is used to control the control terminal of the switch K2, and the output terminal is used to control the control terminal of the switch K1. The invention provides a topological structure and a constant current driving method of an LED lamp driving power supply capable of realizing power factor correction. The circuit topology does not require rectifier bridge stacks and filter capacitors, is simple and reliable, and solves the problems of power factor correction and constant current driving of LED lamps.

Description

technical field [0001] The invention relates to an LED constant-current driving power supply and constant-current control technology, in particular to a double-tube single-buck LED driving power supply device and a constant-current control method applied to an LED lamp driving power supply and an AC-DC converter. Background technique [0002] As a new generation of green lighting source, LED lighting has the advantages of high efficiency, longevity, environmental protection, and energy saving. All countries in the world regard it as an alternative lighting technology for incandescent lamps and energy-saving lamps. my country also promotes LED lighting projects as the main light source. LED lamps Become the most representative lamp. However, since the LED beads used in LED lamps need to be driven by a DC power supply, a rectifier is required for AC-DC conversion. The document "Harmonic Power Characteristics of High Power Rectification System and Its Impact on Electric Energy M...

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 Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/37
Inventor 陈一逢陈力张朝铉
Owner 厦门市爱维达电子有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com