Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power supply converter capable of protecting input low-voltage

A power converter, input undervoltage technology, applied in emergency protection circuit devices, output power conversion devices, electrical components, etc., can solve the problems of easy runaway, failure, uncontrollable circuit power consumption, etc., to improve reliability and stability, controllable power consumption, low power consumption

Inactive Publication Date: 2008-10-08
MORNSUN GUANGZHOU SCI & TECH
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the undervoltage state, due to the frequent swing of the input voltage at the threshold point of the power supply, the working state of the internal circuit of the power supply is not clear, so that the product is prone to run out of control and malfunction in the undervoltage state, and the power consumption of the circuit is uncontrollable

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
  • Power supply converter capable of protecting input low-voltage
  • Power supply converter capable of protecting input low-voltage
  • Power supply converter capable of protecting input low-voltage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 , 2 As shown, a power converter of a self-oscillating flyback circuit in the present invention includes an undervoltage protection circuit, a frequency generating circuit, an absorbing circuit, a feedback circuit, a transformer and an output circuit. One line of input power is connected to the same-named end of the primary winding N1 of the transformer, and the absorption circuit is connected to both ends of the primary winding N1 of the transformer in parallel, the opposite-named end of the primary winding N1 is connected to the frequency generating circuit, and one end of the feedback circuit is connected to the feedback winding N3 of the transformer The end with the same name, the other end of the feedback circuit is connected to the frequency generating circuit, and the undervoltage protection circuit is connected between the power input end and the frequency generating circuit.

[0016] The undervoltage protection circuit includes a second voltage...

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 power supply convertor inputting under-voltage protection, which comprises a frequency generating circuit, an absorbing circuit, a feedback circuit, a transformer and an output circuit, an under-voltage protection which is connected between an electric quantity input end and a frequency generating circuit. Because the product inner circuit is provided with under-voltage protection function, so ensuring that the power supply inner circuit is in the closed state under state of inputting under-voltage, the circuit power consumption can be controlled, thereby improving the reliability and stability of the circuit.

Description

technical field [0001] The invention relates to a power converter of a self-oscillating flyback circuit, in particular to a power converter capable of realizing the function of input undervoltage protection. Background technique [0002] In the conversion power supply circuit, the stability of the output voltage is particularly important, so it is necessary to integrate some protection circuits inside the power supply. In the undervoltage state, because the input voltage frequently swings at the power supply threshold point, the working state of the internal circuit of the power supply is not clear, so that the product is prone to run out of control and malfunction in the undervoltage state, and the power consumption of the circuit is uncontrollable. Contents of the invention [0003] Aiming at the problems occurring in the undervoltage state, the purpose of the present invention is to provide a simple and low-cost power converter with undervoltage protection function, whi...

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): H02M1/32H02H7/122
Inventor 尹向阳
Owner MORNSUN GUANGZHOU SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com