Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Flyback converter

A converter and flyback technology, applied in the field of power conversion, can solve problems such as low conversion efficiency and high switching loss, and achieve the effect of high conversion efficiency and low switching loss

Inactive Publication Date: 2017-03-08
LITE ON ELECTRONICS (GUANGZHOU) LTD +1
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, the flyback converter disadvantageously has relatively high switching losses, resulting in it having relatively low conversion efficiency

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 converter
  • Flyback converter
  • Flyback converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] refer to Figure 1 to Figure 3 , an embodiment of the flyback converter of the present invention is suitable for converting an input voltage Vi into an output voltage Vo, and the flyback converter includes a transformer 1, a first switch 2, a first control module 3 , a second switch 4 , an output capacitor 5 and a second control module 6 .

[0039] The transformer 1 includes a primary winding 11 , a secondary winding 12 and an auxiliary winding 13 . Each of the primary, secondary and auxiliary windings 11, 12, 13 has a first end (eg, figure 1 a dotted end with a black dot shown) and a second end (e.g., figure 1 shown a non-dotted end without a black dot). The first ends of the primary, secondary and auxiliary windings 11, 12, 13 have the same voltage polarity. The number of turns of the primary winding 11 is N times that of the secondary winding 12 (that is, a turns ratio of the primary winding 11 and the secondary winding 12 is N), and the primary winding 11 receiv...

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

A flyback converter includes: a transformer including a primary winding and a secondary winding; a first switch coupled to the primary winding; a first control module configured to control the first switch; a second switch coupled to the secondary winding; and a second control module configured to control the second switch, such that the second switch operates in an ON state during a first time period and during a second time period which follows the first time period, and such that a current flowing through the secondary winding has a direction during the second time period opposite to that during the first time period.

Description

technical field [0001] The invention relates to a power conversion, in particular to a flyback converter. Background technique [0002] In the past, the flyback converter disadvantageously has relatively high switching losses, resulting in relatively low conversion efficiency. Therefore, there is still room for improvement in the round-trip converter in the future. Contents of the invention [0003] A first object of the present invention is to provide a flyback converter with relatively low switching loss and relatively high conversion efficiency. [0004] The flyback converter of the present invention includes a transformer, a first switch, a first control module, a second switch and a second control module. [0005] The transformer includes a primary winding and a secondary winding, each of the primary and secondary windings has a first end and a second end, the first ends of the primary and secondary windings have the same the voltage polarity. [0006] The first s...

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): H02M3/335
CPCH02M3/33523H02M3/33576H02M1/0048Y02B70/10H02M1/0054
Inventor 林成泰许圢墿林正宏谢明琮罗有纲
Owner LITE ON ELECTRONICS (GUANGZHOU) LTD
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
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com