Unlock instant, AI-driven research and patent intelligence for your innovation.

Distributed inductance

A distributed and inductive technology, applied in the direction of circuits, electrical components, magnetic materials, etc., can solve the problem of large volume and weight of output filter inductors, unfavorable internal structure layout of power supplies, and restrictions on the development of miniaturization and light weight of DC-DC converters, etc. problem, to achieve an effect that is easy to change

Inactive Publication Date: 2007-05-30
BEIJING JIAOTONG UNIV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain a large inductance, the number of turns of the coil is relatively large; and in the low-voltage high-current circuit, due to the large current, the cross-section of the wire is generally relatively large, so the volume of the output filter inductor of the low-voltage high-current converter and The weight is very large, which seriously restricts the development of miniaturization and light weight of DC-DC converters
The traditional filter inductor magnetic core is a profile, which is defined as a concentrated inductor in this paper, which is not conducive to the layout of the internal structure of the entire power supply

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
  • Distributed inductance
  • Distributed inductance
  • Distributed inductance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Distributed inductance it is in soft magnetic alloy powder Fe 74 Al 4 sn 2 P 10 C 2 B 4 Si 4 or Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 Doping non-magnetic materials to prevent the current flowing through the inductor from saturating the magnetic core of the inductor, and using organic adhesives such as epoxy resin and phenolic resin to evenly bond it to the soft tape carrier. Make magnetic powder soft tape 2, wind the magnetic powder soft tape in a spiral shape, make the adjacent two coils of magnetic powder soft tape close together, wind around the conductor 1, and prevent non-magnetic material parts, the specific structure is shown in Figure 1- 2, constitute a distributed inductance. After winding one layer, use the same method to wind the second layer to obtain a larger inductance. Figure 1-2 is a schematic diagram of the distributed inductance of two layers of soft magnetic materials.

[0016] The adhesive is non-conductive, non-magnetic, silicone rubber, polyest...

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

This invention discloses one distribution inductance, which mixes non-conductive magnetic materials into Fe74Al4Sn2P10C2B4Si4 or Fe73.5Cu1Nb3Si13.5B9, wherein, it uses adhesive agent to add it onto flexible load to process magnetic powder flexible band; rolling the band by spiral type to make adjacent two magnetic of band tightly relay onto conductor to form distribution inductance; through changing magnetic band rolling distance 1 and its inductance volume and through changing conductor shape to change inductance shape with suitable inductance for fixing.

Description

technical field [0001] The invention relates to a DC power supply output filter inductor such as a DC-DC high-frequency converter. Background technique [0002] At present, in the low-voltage high-current switching power supply, there is a serious DC magnetization phenomenon in the output filter inductor. Traditional filter inductors usually use the method of opening an air gap on the magnetic core to make the magnetic core work in the unsaturated region. However, due to the existence of the air gap, the magnetic permeability of the magnetic material is greatly reduced, so to obtain the same inductance, the volume of the magnetic core must be increased. At the same time, the traditional filter inductor is to wind the wire on the magnetic core to obtain the required inductance. To obtain a large inductance, the number of turns of the coil is relatively large; and in the low-voltage high-current circuit, due to the large current, the cross-section of the wire is generally re...

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): H01F30/06H01F1/147
Inventor 郑琼林游小杰胡广艳孙湖杨中平黄先进郝瑞祥张利伟林飞
Owner BEIJING JIAOTONG UNIV