Overvoltage protective LED energy-saving driving system based on power amplification circuit

A technology of a power amplifier circuit and a drive system, applied in the field of drive systems, can solve the problems of inability to meet energy-saving requirements and high power consumption, and achieve the effects of reducing startup power consumption, small startup current, and avoiding damage

Inactive Publication Date: 2016-10-12
CHENGDU SINOMETALLURGY ENERGY CONSERVATION ENVIRONMENTAL PROTECTION ENG CO LTD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional LED drive system consumes a lot of po

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
  • Overvoltage protective LED energy-saving driving system based on power amplification circuit
  • Overvoltage protective LED energy-saving driving system based on power amplification circuit
  • Overvoltage protective LED energy-saving driving system based on power amplification circuit

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example

[0020] Such as figure 1 As shown, the present invention mainly consists of a control chip U2, a transformer T, a power supply circuit and a frequency adjustment circuit respectively connected to the control chip U2, the P pole is connected to the frequency adjustment circuit, and the N pole is connected to the VS pin of the control chip U2 The diode D4, the anode is connected to the SGND pin of the control chip U2, the cathode is connected to the capacitor C3 of the frequency adjustment circuit, one end is connected to the PGND pin of the control chip U2, and the other end is connected to the frequency adjustment circuit while being grounded The resistor R3 of, the gate drive circuit connected to the VS pin of the control chip U2, is connected in series to the overvoltage protection circuit between the power supply circuit and the frequency adjustment circuit, and is connected in series to the gate drive circuit and the secondary side of the transformer T The pow...

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 an overvoltage protective LED energy-saving driving system based on a power amplification circuit. The overvoltage protective LED energy-saving driving system is characterized by manly consisting of a transformer T, a control chip U2, a power supply circuit and a frequency adjustment circuit which are connected with the control chip U2, a diode D4 which has a P pole connected with the frequency adjustment circuit and an N pole connected with a VS pin of the control chip U2, and the like. The system, by use of a GR6953 integrated chip as the control chip and through combination with a peripheral circuit, forms a half-bridge control structure, such that starting power consumption is reduced, and the system is more energy-saving. Large power can be output, and demands of multiple LEDs for simultaneous work are satisfied. At the same time, the circuit can be automatically disconnected in case of overvoltages, the system itself and the LEDs are prevented from damage caused by the overvoltages.

Description

technical field [0001] The invention relates to a drive system, in particular to an overvoltage protection type LED energy-saving drive system based on a power amplifier circuit. Background technique [0002] At present, due to the characteristics of low energy consumption, long service life, safety and environmental protection, LED lamps have become one of the mainstream products for people's living lighting. With the continuous improvement of people's awareness of energy saving, people's energy consumption requirements for LED drive systems are also getting higher and higher, which brings new challenges to LED drive systems. However, the traditional LED drive system consumes a lot of power when it is started, which cannot meet people's energy-saving needs. Contents of the invention [0003] The purpose of the present invention is to solve the defect of large power consumption during start-up of the current LED driving system, and provide an overvoltage protection type L...

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): H05B33/08H05B44/00H05B45/30
CPCH05B45/00Y02B20/30
Inventor 不公告发明人
Owner CHENGDU SINOMETALLURGY ENERGY CONSERVATION ENVIRONMENTAL PROTECTION ENG CO LTD
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