Multipath output electrical power suitable for space environment

A multi-channel output and space environment technology, applied in emergency protection circuit devices for limiting over-current/over-voltage, output power conversion devices, protection for over-current reactions, etc., can solve the problem of single-event locking Issues such as event detection and protection to achieve the effect of improving the safety factor

Inactive Publication Date: 2009-08-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the special requirements for the space environment. The existing power supply circuit cannot realize the effective pr...

Method used

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  • Multipath output electrical power suitable for space environment
  • Multipath output electrical power suitable for space environment

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specific Embodiment approach 1

[0012] Specific implementation mode one: the following combination figure 1 and figure 2 Describe this embodiment. This embodiment includes a power input filter circuit 1, a multi-channel DC / DC conversion circuit module 2 with bus input overcurrent protection and output voltage protection functions. The output terminal of the power input filter circuit 1 is connected to the multi-channel DC / The input terminals of the DC conversion circuit module 2 are connected to each other,

[0013] It also includes a latch trigger circuit 3, n low-dropout linear output regulation modules 4, a turn-off crowbar circuit 5 and n charge discharge crowbar circuits 6,

[0014] The n output terminals of the multi-channel DC / DC conversion circuit module 2 are respectively connected to the input terminals of a low-dropout linear output regulation module 4, and the two output terminals of each low-dropout linear output regulation module 4 are connected to a charge discharge crowbar The two ends of...

specific Embodiment approach 2

[0028] The second specific embodiment; the difference between this embodiment and the first embodiment is that the multi-channel DC / DC conversion circuit module 2 adopts a flyback topology or a forward topology; the multi-channel DC / DC conversion circuit module 2 adopts a step-down topology, boost topology or buck-boost topology; the multi-channel DC / DC conversion circuit module 2 adopts push-pull topology, half-bridge topology or full-bridge topology, and other composition and connection methods are the same as those in the first embodiment.

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Abstract

The invention discloses a multi-output power supply suitable to be used in a spatial environment, which belongs to the filed of power supply devices. The invention aims to solve the problem that the prior power supply circuit cannot realize the effective protection of a load, nor the detection and protection of a single event latchup event according to the special requirements of the spatial environment. A multipath DC/DC conversion circuit module of the invention has the functions of bus input overcurrent protection and output voltage protection, is connected with a higher-level power supply through a power input filter circuit and connected with a load circuit through n low dropout voltage linear output regulator modules, and outputs an alarming signal to a latch trigger circuit when the current in the load exceeds a preset upper limit of the current so that the latch trigger circuit can control and turn off the n low dropout voltage linear output regulator modules by turning off crow bar circuits and control the n charge-dissipation crow bar circuits to be turned on to release the excessive charges of a load capacitor quickly. The multi-output power supply is used in a spatial environment, and is particularly applicable to the design of modularized joints of a space robot.

Description

technical field [0001] The invention relates to a multi-channel output power supply circuit meeting space application requirements, and belongs to the field of power supply devices. Background technique [0002] With the increase of our country's investment in space exploration, more and more electromechanical equipment will be put into space operation. Satellites or spacecraft generally obtain electrical energy through solar panels and then store it in batteries, which then provide power to the load. Space-borne equipment generally requires an independent power supply circuit to convert the single voltage obtained from the upper-level power supply into multiple levels required by its own load. Power supply is the heart of electromechanical equipment, and the stability and reliability of space equipment power supply is particularly important. [0003] Space equipment places high demands on the volume and weight of components. Especially the design of the modular joints of...

Claims

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Application Information

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IPC IPC(8): H02M3/00H02H7/10H02H3/08H02H9/02
Inventor 郭闯强倪风雷谢宗武刘宏顾义坤张庆利党进介党阳
Owner HARBIN INST OF TECH
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