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Positive exciting magnetic integrated converter of outputting-current corrugated minimum

A technology of output ripple and converter, which is applied in the direction of output power conversion device, adjustment of electric variable, conversion of DC power input to DC power output, etc. It can solve the problems of inability to reduce the volume of magnetic parts and improve the output dynamic performance , Minimize the output current ripple and reduce the effect of current ripple

Inactive Publication Date: 2007-09-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can reduce the output current ripple, it requires an additional circuit, and the transformer and inductor cannot be integrated to reduce the volume of the magnetic parts

Method used

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  • Positive exciting magnetic integrated converter of outputting-current corrugated minimum
  • Positive exciting magnetic integrated converter of outputting-current corrugated minimum
  • Positive exciting magnetic integrated converter of outputting-current corrugated minimum

Examples

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Embodiment Construction

[0018] For an implementation example 1 of an integrated magnetic component using an EE core, refer to FIG. 1 . Primary winding N p , The secondary winding is placed on the side column of the iron core, and the filter inductor winding N L Placed on another iron core side column, point a and point c of the integrated magnetic part are ends with the same name. The iron core is not limited to the EE type.

[0019] Refer to the accompanying drawing 2 for the implementation example 2 of the integrated magnetic parts using the EE core. Primary winding N p , The secondary winding is placed on the side column of the iron core, and the filter inductor winding N L Placed on another iron core side column, point a and point c of the integrated magnetic part are different ends. The iron core is not limited to the EE type.

[0020] Refer to the accompanying drawing 3 for the implementation example 3 of the integrated magnetic parts using the EE core. Primary winding N p , The seconda...

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PUM

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Abstract

The invention is concerned with the outputting electric-current ripple minimum normal shock style magnetic integrative direct-current converter. It consists of: the direct-current electrical source (-), the normal shock style converter original margin electric circuit (-), the subsidiary margin rectification and the capacitance filter circuit (-). The characteristic is: integrates the transformer of the traditional normal shock style converter and the outputting filtering inductance to get the integration magnetic piece (-); connects the homonymy end of the subsidiary margin (Ns) of the integration magnetic piece (-) and the filtering inductance winding group (NL) in order to make the alternation magnetism between the transformer winding group and the filtering inductance winding group coil chain to be positive coupling; sets air gap in each magnetic column of the integration magnetism piece in order to get the optimize relation. The invention can maintain the advantages of the normal shock style converter reduce the volume of the magnet piece, improve the power density, reduce current microseism farthest, which is fit for improve the efficiency and the outputting dynamic capability.

Description

1. Technical field [0001] The output ripple minimization forward magnetic integrated converter of the present invention belongs to a DC converter of an electric energy conversion device. 2. Background technology [0002] In the medium and small power DC conversion occasions, the forward converter has been widely used due to its simple circuit topology, convenient control, high reliability and good economy. Specifically, it includes active clamp forward converter, dual-tube forward converter, resonant magnetic reset forward converter, winding magnetic reset forward converter and RCD magnetic reset forward converter. Since the forward converters all use single-ended rectification circuits, compared with double-ended converters such as half-bridge and full-bridge, there is a problem of large inductor current ripple. In order to ensure the quality of the output voltage, the filter inductance and filter capacitor are generally increased, which will inevitably increase the volume...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
Inventor 陈乾宏王健冯阳阮新波
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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