Surge suppression circuit for switching power supply

A surge suppression circuit and surge suppression technology, applied in the power supply field, can solve problems such as lack of circuits, and achieve the effects of improving operation consistency, improving overall efficiency, and reducing power consumption

Pending Publication Date: 2022-03-08
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such circuits are still lacking in the prior art

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
  • Surge suppression circuit for switching power supply
  • Surge suppression circuit for switching power supply
  • Surge suppression circuit for switching power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] Such as figure 1 As shown, a surge suppression circuit for switching power supply, which includes an overvoltage surge suppression module, an undervoltage surge suppression module, a first filter voltage stabilization module and a second filter voltage stabilization module. The external power input passes through the overvoltage surge suppression module, the first filtering and voltage stabilizing module, the undervoltage surge suppression module and the second filtering and voltage stabilizing module in sequence and is output.

[0038] Such as figure 2 As shown, the surge suppression strategy of this circuit is as follows:

[0039] (1) When the surge suppression circuit is within the normal range of the input voltage, the output voltage is normal directly;

[0040] (2) When the overvoltage surge suppression module detects that the input voltag...

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 surge suppression circuit for a switching power supply, and belongs to the technical field of power supplies. The circuit comprises an overvoltage surge suppression module, an under-voltage surge suppression module, a first filtering voltage stabilization module and a second filtering voltage stabilization module. An external power supply input is output after passing through the overvoltage surge suppression module, the first filtering voltage stabilization module, the under-voltage surge suppression module and the second filtering voltage stabilization module in sequence. The surge suppression circuit has high reliability and low power consumption, has a wide surge voltage suppression range, can adapt to various severe over-voltage and under-voltage surge power utilization environments, and enables equipment to be more reliable.

Description

technical field [0001] The invention relates to a surge suppression circuit for a switching power supply, belonging to the technical field of power supplies. Background technique [0002] With the continuous development of power supply technology, more and more attention has been paid to the miniaturization and high efficiency of switching power supplies. In the past, the design focus of switching power supply modules was generally on the main circuit such as voltage conversion. For protection circuits such as anti-reverse connection and surge suppression, most of them used standard circuit forms or modular equipment, which had high power consumption, weak performance or volume. Larger and other shortcomings. For example, for anti-reverse function requirements, the use of traditional diode anti-reverse protection will cause large losses and low efficiency; or use extensive protection methods such as Zener tubes for over- and under-voltage protection circuits, which are easi...

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): H02M1/32H02H9/04H02H3/20H02H7/12H02M1/088H02M3/156
CPCH02M1/32H02H9/042H02H3/202H02H3/207H02H7/1213H02M1/088H02M3/156
Inventor 刘瑞杰赵明宇东安王江辉贾占强徐江宁殷佳源
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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