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Flyback switching power supply and high-frequency converter

A flyback switch, power supply technology, applied in the direction of adjusting electrical variables, high-efficiency power electronic conversion, converting DC power input to DC power output, etc. low cost effect

Pending Publication Date: 2022-08-09
长沙竹叶电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of realizing the present invention, the inventors found that the traditional flyback switching power supply is still designed with MOS tube technology, and there is a technical problem of large power supply volume

Method used

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  • Flyback switching power supply and high-frequency converter
  • Flyback switching power supply and high-frequency converter

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] It can be understood that the "electrical connection" in the following e...

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Abstract

The invention relates to a flyback switching power supply and a high-frequency converter. The flyback switching power supply comprises a rectifier filter, the high-frequency converter, a width modulation square wave rectifier and a control circuit. The high-frequency converter comprises a GaN power switch tube and a high-frequency planar transformer. The input end of the rectifier filter is used for accessing alternating voltage, the input end of the GaN power switch tube is electrically connected with the output end of the rectifier filter, the output end of the GaN power switch tube is electrically connected with the input end of the high-frequency planar transformer, and the control end of the GaN power switch tube is electrically connected with the output end of the control circuit. The output end of the high-frequency planar transformer is electrically connected with the input end of the width modulation square wave rectifier. The output end of the width-modulated square-wave rectifier is used for outputting direct-current voltage, the input end of the control circuit is electrically connected with the output end of the width-modulated square-wave rectifier, and the control circuit is used for controlling on and off of the GaN power switch tube. The size of the power supply is greatly reduced, and the power supply efficiency is higher.

Description

technical field [0001] The invention belongs to the technical field of electronic circuits, and relates to a flyback switching power supply and a high-frequency converter. Background technique [0002] In contemporary electronic technology, power supply occupies a pivotal position in electronic products. With the increasing demand for high power density in the market, the high power density of power supplies is also required to increase. With the development of power supply technology, the development and innovation of silicon power supply technology has greatly reduced the size of power supply products, but it is difficult for cash to make further breakthroughs. Silicon materials can no longer output higher power at the required frequencies under existing size specifications. For many years, silicon has been the basic material in electronic components, widely used to convert alternating current to direct current, and adjust the DC voltage to meet the technical needs of man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M1/32H02M1/08
CPCH02M3/33523H02M1/32H02M1/08Y02B70/10
Inventor 杨伯群
Owner 长沙竹叶电子科技有限公司
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