Supercharge Your Innovation With Domain-Expert AI Agents!

Full closed-loop driving circuit of 18W light emitting diode (LED) fluorescent lamp

A driving circuit and LED lamp technology, which is applied in the direction of electric lamp circuit layout, light source, electric light source, etc., can solve the problems of low precision and poor reliability of the guide drive circuit, and achieve the effect of high overall voltage, low cost and high power density

Inactive Publication Date: 2016-01-13
SUZHOU KUNK & SAM LIGHTING TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-isolated constant current control technology of the transmission is not a real closed-loop constant current, so the reliability of the guide drive circuit is poor and the precision is low

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
  • Full closed-loop driving circuit of 18W light emitting diode (LED) fluorescent lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] As shown in Figure 1, a fully closed-loop 18W LED fluorescent lamp drive circuit, a fully closed-loop 18W LED fluorescent lamp drive circuit, includes an AC voltage, a bridge rectifier circuit, an LED lamp, and also includes a DU8623 chip and a power factor correction circuit. The DU8623 chip Including pin COMP, pin GND, pin VCC, pin GATE, pin DRN, pin N / A, pin CS, the power factor correction circuit includes resistor R1, resistor R2, resistor R5, diode VD6, Capacitor Ce1 and capacitor C2, the resistor R1 and resistor R2 are connected in parallel at the output end of the bridge rectifier circuit after being connected in series, the resistor R5 and the diode VD6 are connected in parallel with capacitor Ce1 in series and then connected in parallel at the output end of the bridge rectifier circuit, the capacitor C2 is connected in parallel to the output terminal of...

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 full closed-loop driving circuit of a 18W light emitting diode (LED) fluorescent lamp. The full closed-loop driving circuit comprises an AC voltage, a bridge rectification circuit and an LED lamp and also comprises a DU8623 chip and a power factor correction circuit, wherein the DU8623 chip comprises a pin COMP, a pin GND, a pin VCC, a pin GATE, a pin DRN, a pin N / A and a pin CS, and the power factor correction circuit comprises a resistor R1, a resistor R2, a resistor R5, a diode VD6, a capacitor Ce1 and a capacitor C2. With the full closed-loop driving circuit of the 18W LED fluorescent lamp, provided by the invention, 18W output power is achieved; in the design, a few components are required, and cost is low; and an advanced control mode of the full closed-loop driving circuit is the fundamental reason for achieving higher power density, the comprehensive voltage of the circuit is high, and the constant current accuracy is high.

Description

technical field [0001] The invention relates to a fully closed-loop 18W LED fluorescent lamp driving circuit, which belongs to the technical field of LED lamp driving circuits. Background technique [0002] At present, according to the characteristics of the LED lighting load, the topology of the non-isolated constant current drive power supply is basically a BUCK step-down circuit. The non-isolated constant current control technology of the transmission is not a real closed-loop constant current, so the reliability of the guide drive circuit is poor and the precision is low. Contents of the invention [0003] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a fully closed-loop 18W LED fluorescent lamp drive circuit. [0004] Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: [0005] A fully closed-loop 18W LED fluorescent lamp drive circ...

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
IPC IPC(8): H05B37/02
Inventor 傅立铭
Owner SUZHOU KUNK & SAM LIGHTING TECH CO LTD
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