Check patentability & draft patents in minutes with Patsnap Eureka AI!

Single-end flyback switching power supply circuit

A switching power supply circuit, flyback technology, applied in the direction of circuit devices, emergency protection circuit devices, electrical components, etc., can solve the problems of low, unstable control progress of switching power supply circuits, etc., to improve control progress and load regulation rate and the effect of improving transient response characteristics

Pending Publication Date: 2017-10-20
广西南宁驰信电子科技有限公司
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a switching power supply circuit with stable output power supply voltage and high control progress, which solves the problems of instability and low control progress of the existing switching power supply circuit

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
  • Single-end flyback switching power supply circuit
  • Single-end flyback switching power supply circuit
  • Single-end flyback switching power supply circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with embodiment.

[0018] A single-ended flyback switching power supply circuit such as Figure 1-3 As shown, it includes a starting circuit, an overcurrent, overvoltage and undervoltage protection circuit, a feedback circuit and a rectification circuit; The output end of the voltage protection circuit is respectively connected with the starting circuit and the rectification circuit, the input end of the feedback circuit is connected with the rectification circuit, and the output end is connected with the starting circuit.

[0019] The start-up circuit includes a start-up control subcircuit and a start-up component subcircuit, the start-up component subcircuit is connected with the start-up control subcircuit, and the start-up control subcircuit is respectively connected with an overcurrent, overvoltage and undervoltage protection circuit, a feedback circuit and a rectification circuit.

[0020] Descr...

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 provides a single-end flyback switching power supply circuit, and belongs to the field of switching power supplies. The single-end flyback switching power supply circuit comprises a starting circuit, an overcurrent, overvoltage and undervoltage protection circuit, a feedback circuit and a rectification circuit. The output end of the starting circuit is the current output port of a switching power supply through the output port of the rectification circuit. The output end of the overcurrent, overvoltage and undervoltage protection circuit is connected with the starting circuit and the rectification circuit. The input end of the feedback circuit is connected with the rectification circuit, and the output end is connected with the starting circuit. The starting circuit comprises a starting control sub-circuit and a starting part sub-circuit. The starting part sub-circuit is connected with the starting control sub-circuit. The starting control sub-circuit is connected with the overcurrent, overvoltage and undervoltage protection circuit, the feedback circuit and the rectification circuit. The single-end flyback switching power supply circuit has the advantages of being stable in output and high in regulation and control precision.

Description

technical field [0001] The invention relates to the field of switching power supplies, in particular to a single-end flyback switching power supply circuit. Background technique [0002] The power supply device is an important field of power technology application, among which the high-frequency switching DC regulated power supply has been widely used due to its outstanding advantages such as high efficiency, small size and light weight. The control circuit of switching power supply can be divided into voltage control type and current control type. The voltage control type is a single closed-loop voltage control system. The system responds slowly, and it is difficult to achieve high linear regulation accuracy. [0003] In order to further adapt to the needs of the society, to make the switching power supply more stable, and to improve the adjustment progress, it is necessary to design a new type of switching power supply circuit. Contents of the invention [0004] The inv...

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): H02M7/219H02M3/335H02M1/36H02H7/125H02H3/06
CPCH02H3/066H02H7/1252H02M1/36H02M3/33561H02M3/33592H02M7/219
Inventor 李建武
Owner 广西南宁驰信电子科技有限公司
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