Switching type stabilized voltage supply circuit

A stable power supply, switch-type technology, applied in the direction of conversion equipment with intermediate conversion to AC, irreversible conversion of AC power input into DC power output, etc., can solve the problems of high working temperature, small adjustment range, large volume, etc., to achieve The effect of high voltage regulation accuracy and wide voltage regulation range

Inactive Publication Date: 2013-06-19
XIAN GUANGRONG ELECTRICAL
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although the traditional linear regulated power supply has a simple circuit structure and reliable operation, it has disadvantages such as low efficiency (only 40% -50%), large volume, large consumption of copper and iron, high operating temperature and small adjustment range.

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
  • Switching type stabilized voltage supply circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0009] see figure 1 The present invention includes a control circuit, a rectification and filtering circuit 1, a high-frequency switching circuit 2, and a width-adjusting square wave rectification and filtering circuit 3. The control circuit is composed of a sampling circuit 6, a comparison circuit 5, and a pulse width modulation circuit 4 connected in series in sequence. , the pulse width modulation circuit 4 is connected in series with an oscillation circuit 7, and the comparison circuit 5 is connected in series with a reference voltage circuit 8; the sampling circuit 6 of the control circuit is connected with the width modulation square wave rectification filter circuit 3, and the pulse width modulation circuit 4 and The high frequency switching circuit 2 is connected.

[0010] The control circuit is used to adjust the switching time rati...

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 relates to a switching type stabilized voltage supply circuit. Although a traditional linear stabilized voltage supply is simple in circuit structure and reliable in operation, the traditional linear stabilized voltage supply has the defects of being low in efficiency, large in size, large in copper consumption and iron consumption, high in working temperature, small in adjusting range and the like. The switching type stabilized voltage supply circuit comprises a control circuit, a rectifying filter circuit, a high-frequency exchange circuit and a pulse-width modulation square-wave rectifying filter circuit. The control circuit is composed of a sampling circuit, a comparison circuit and a pulse-width modulation circuit, the sampling circuit, the comparison circuit and the pulse-width modulation circuit are sequentially connected in series, the pulse-width modulation circuit is in series connection with an oscillating circuit, the comparison circuit is in series connection with a reference voltage circuit, the sampling circuit of the control circuit is connected with the pulse-width modulation square-wave rectifying filter circuit, efficiency of the pulse-width modulation circuit, the high-frequency exchange circuit and the switching type stabilized voltage supply circuit can reach more than 85%, and the stabilized voltage range is wide. In addition, the switching type stabilized voltage supply circuit has the advantages of being high in voltage stabilizing precision, free of a power transformer and the like.

Description

technical field [0001] The invention relates to a switch type stable power supply circuit. Background technique [0002] Although the traditional linear regulated power supply has a simple circuit structure and reliable operation, it has disadvantages such as low efficiency (only 40% -50%), large volume, large consumption of copper and iron, high operating temperature and small adjustment range. Contents of the invention [0003] The technical problem solved by the invention is to provide a switch-type stable power supply circuit with an efficiency of more than 85%, a wide range of voltage regulation, high precision of voltage regulation, and no power transformer. [0004] In order to solve the above-mentioned technical problems, the technical scheme adopted by this new model is as follows: [0005] A switch-type stable power supply circuit, which is special in that it includes a control circuit, a rectification and filtering circuit, a high-frequency switching circuit, a...

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): H02M7/02H02M3/22
Inventor 张弘
Owner XIAN GUANGRONG ELECTRICAL
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