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

Flyback power supply system and control method

A technology of power supply system and control method, which is applied in the direction of control/regulation system, electrical components, and adjustment of electric variables, etc., and can solve problems such as failure of the whole power supply

Active Publication Date: 2021-06-04
58TH RES INST OF CETC
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing secondary-side synchronous rectification technology detects the voltage reversal moment at both ends of the secondary-side synchronous rectifier tube as the turn-off time of the synchronous rectifier tube, which may cause the power devices on both sides of the transformer to be turned on at the same time, which may cause power failure in the whole power supply. fail

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
  • Flyback power supply system and control method
  • Flyback power supply system and control method
  • Flyback power supply system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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 flyback power supply system and a control method, and relates to the technical field of semiconductor integrated circuits. The power supply system comprises a transformer, a primary side power tube of the transformer, a secondary side synchronous rectification power tube of the transformer and a capacitor; one end of the primary side of the transformer is connected with a power supply, and the other end is grounded through the primary side power tube; one end of the secondary side of the transformer is connected with the capacitor and then is grounded, and the other end of the secondary side of the transformer passes through the secondary side synchronous rectification power tube and then is grounded.

Description

technical field [0001] The invention relates to a flyback power supply system and a control method, belonging to the technical field of semiconductor integrated circuits. Background technique [0002] The conversion efficiency is one of the most important technical indicators and one of the market access standards for the flyback power supply used in the small and medium power range. Improving the conversion efficiency, reducing the volume of the power supply unit, and increasing the power density are the focus of the development of power supply technology in the small and medium power segment. [0003] Novel power devices such as gallium nitride (GaN) and silicon carbide (SiC) are continuously applied to the market, and with the application of novel power devices, gradually increasing the switching frequency of isolated switching power supplies has become a reality of technological development. [0004] The existing secondary-side synchronous rectification technology detec...

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): H02M1/08H02M3/335
CPCH02M1/08H02M3/33592Y02B70/10
Inventor 祝乃儒
Owner 58TH RES INST OF CETC
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