Magnetic integration transfer circuit system

A conversion circuit and magnetic integration technology, which is applied in the field of magnetic integration conversion circuit system, can solve the problems of space occupation and large auxiliary circuit of power supply, etc., and achieve the effect of simplification and reduction of space volume

Active Publication Date: 2010-10-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Since the input voltage of the primary side is not stable, it will fluctuate within a certain range. Therefore, if the auxiliary source voltage obtaining unit wants to output a stable voltage

Method used

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Examples

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Embodiment 1

[0030] A magnetic integrated conversion circuit system, the structure diagram is as follows figure 2 As shown, it includes: a main source voltage obtaining unit 10 and at least one (one is taken as an example in this embodiment) auxiliary source voltage obtaining unit 11, wherein:

[0031] The main source voltage obtaining unit 10 includes an integrated magnetic component with at least three magnetic columns (the embodiment of the present invention takes three magnetic columns a, b and c as an example), a primary winding N p (including N in the figure p1 , N p2 ), at least two (the embodiment of the present invention takes two as an example) primary and secondary windings N s1 and N s2 And the main source voltage regulator output circuit 100;

[0032] The auxiliary source voltage obtaining unit 11 includes a secondary winding N a and auxiliary source voltage output circuit 110;

[0033] Primary winding N p The two ends A and B are connected to the input power supply, s...

Embodiment 2

[0047] A magnetic integrated conversion circuit system. In this embodiment, the circuit system includes two auxiliary source voltage acquisition units. The schematic diagram of the structure is as follows: Figure 4 As shown, it includes: the main source voltage obtaining unit and two auxiliary source voltage obtaining units, where:

[0048] The main source voltage obtaining unit includes integrated magnetic parts with three magnetic columns, two primary sub-windings N p1 and N p2 The connected primary winding N p , two primary and secondary windings N s1 and N s2 And the main source voltage regulated output circuit; wherein the main source voltage regulated output circuit is realized by the following structure:

[0049] The first rectifier diode D 1 and primary and secondary windings N s1 Circuit 1 is formed in series, and the second rectifier diode D 2 and primary and secondary windings N s2 Circuit 2 is formed in series, and circuit 1 and circuit 2 are connected in ...

Embodiment 3

[0057] A magnetic integrated conversion circuit system, the structure diagram is as follows Figure 5 As shown, it includes: a main source voltage obtaining unit 20 and at least one (one is taken as an example in this embodiment) auxiliary source voltage obtaining unit 21, wherein:

[0058] The main source voltage obtaining unit 20 includes an integrated magnetic part having at least three (in this embodiment, three magnetic columns A, B and C are taken as an example) magnetic columns, a primary winding N p (including N p1 and N p2 ), more than two (in this embodiment, take two as an example) primary and secondary windings N s1 and N s2 And the main source voltage stabilized output circuit 200; the auxiliary source voltage obtaining unit 21 includes a secondary winding N a and auxiliary source voltage output circuit 210;

[0059] Primary winding N p (including N p1 , N p2 ) both ends E and F are connected to the input power supply, at least two primary and secondary wi...

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PUM

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Abstract

The embodiment of the invention discloses a magnetic integration transfer circuit system which is applied to the technical field of power supply. The magnetic integration transfer circuit system comprises a main source voltage acquiring unit and at least one auxiliary source voltage acquiring unit, wherein the main source voltage acquiring unit comprises an integrated magnetic piece with at leastthree cylinders, a primary winding, at least two main secondary windings and a main source voltage stabilizing output circuit; the auxiliary source voltage acquiring unit comprises an auxiliary secondary winding and an auxiliary source voltage output circuit, two ends of the primary winding are connected with an input power supply, the at least two main secondary windings are respectively wound on at least two of the cylinders in the integrated magnetic piece and are connected with the main source voltage stabilizing output circuit; and the auxiliary secondary winding is wound on the cylinderwith an energy storing gap in the integrated magnetic piece and is connected with the auxiliary source voltage output circuit. The invention reduces the space volume of the auxiliary circuit of the power supply, thereby simplifying the high-power power supply.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to a magnetic integrated conversion circuit system. Background technique [0002] With the increase in power density requirements, switching power supplies require more compact and miniaturized volumes while achieving high efficiency in power conversion performance when supplying power to loads. This requires power devices such as semiconductor switching devices and The magnetic components are optimized in structure, and the space application of auxiliary source circuits and control circuits is minimized. [0003] Magnetic integration technology can effectively reduce the volume and weight of magnetic components, and has become an important way for the development trend of high power density in switching power supplies. Using magnetic integration technology, the transformer and inductor in the switching power supply can be completed by a magnetic component, and the volume of t...

Claims

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Application Information

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IPC IPC(8): H02M7/04H02M7/06
Inventor 卢增艺朱勇发白亚东陈为
Owner HUAWEI TECH CO LTD
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