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Multi-channel controllable isolated output secondary power module

A technology of secondary power supply and isolated output, applied in the field of satellite power supply, can solve the problem that the secondary power supply cannot meet the actual needs, and achieve the effect of miniaturization of products, reduction of product weight, and wide application range.

Inactive Publication Date: 2016-07-13
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]The existing secondary power supply has technical problems such as being unable to meet actual needs

Method used

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  • Multi-channel controllable isolated output secondary power module
  • Multi-channel controllable isolated output secondary power module
  • Multi-channel controllable isolated output secondary power module

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The multi-channel controllable isolated output secondary power supply module includes surge suppression circuit, input filter circuit, BUCK drive circuit, push-pull isolated power conversion circuit, PWM control circuit, overvoltage and overcurrent protection circuit and rectification output circuit. After the 28V bus enters the secondary power supply, it is filtered once by the filter circuit, and then the multi-channel isolated +12V power conversion is completed through the BUCK and step-down push-pull isolation conversion circuit to supply power for the SE (Spatial Equalization Manager).

[0028] 1. Implementation of BUCK drive circuit:

[0029] Buck drive circuit adopts isolated drive mode, as attached figure 2 As shown, T2 and T3 are isolation transformers, R8 and R7 are driving resistors, and R11 and R12 are antistatic resistors. The double-tube parallel BUCK circuit used in the pre-stage BUCK circuit of this circuit currently makes the pre-stage step-down withi...

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PUM

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Abstract

The invention relates to a multi-channel controllable isolated output secondary power module and belongs to the technical field of satellite power sources. The multi-channel controllable isolated output secondary power module is characterized in that the module includes a surge inhibiting circuit, an input filtering circuit, a BUCK drive circuit, a push-pull isolation power change circuit, a PWM control circuit and a rectification output circuit; after a 28V bus is connected to a secondary power source, the first filtering is performed by the input filtering circuit and then multi-channel isolation plus 12V power change is implemented through the BUCK drive circuit and the voltage reducing push-pull isolation power change circuit, and the rectification output circuit supplies power for an SE manager. The multi-channel controllable isolated output secondary power module provided by the invention has advantages of small size, low weight, simple structure, high safety, high reliability, good expansion capability, wide application range and the like and multi-channel rear-stage output can be realized.

Description

technical field [0001] The invention belongs to the technical field of satellite power supplies, in particular to a multi-channel controllable isolated output secondary power supply module. Background technique [0002] At present, the secondary power supply plays a very important role in a system. In a sense, the secondary power supply can be seen as the heart of the system. It provides continuous and stable energy to system circuits and protects the system from external disturbances. It can be seen that the performance of the secondary power supply is closely related to the technical indicators and reliability of the electronic equipment. [0003] Due to the rapid popularization of integrated circuits, the development of secondary power supply tends to be miniaturized, and has been widely used in various fields of modern social life, and it is even an indispensable part in space power supply systems. The secondary power supply has the characteristics of small size and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/337
Inventor 安飞胡斌
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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