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Remote control instruction and bus under-voltage protection circuit with strong anti-interference capability

A technology of remote control command and undervoltage protection, which is applied in the direction of emergency protection circuit device, protection for undervoltage or no voltage response, circuit device, etc., which can solve the problem of lack of anti-interference ability and avoid load failure. , Avoid input oscillation, overcome the effect of insufficient derating of relay switching times

Active Publication Date: 2020-12-04
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This circuit structure is a new type of remote control command circuit and undervoltage protection circuit, which can solve the defect that the traditional relay does not have anti-interference ability for remote control switch and undervoltage protection.

Method used

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  • Remote control instruction and bus under-voltage protection circuit with strong anti-interference capability

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] The invention relates to a remote control command and bus undervoltage protection circuit with strong anti-interference ability, comprising: a remote control command circuit and a bus undervoltage protection circuit. The remote control instruction circuit includes: opening circuit and closing circuit; the busbar undervoltage protection circuit includes: reference voltage circuit, voltage comparison circuit, power supply circuit and driving circuit.

[0044] Turn on the circuit: receive the start-up command pulse signal transmitted from the outside, filter the command pulse signal and suppress interference, and then send it to the photocoupler, and connect the output terminal of the photocoupler to the negative comparison terminal of the voltage comparator in the voltage comparison circuit;

[0045] Shutdown circuit: Receive the...

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Abstract

The invention provides a remote control instruction and bus under-voltage protection circuit with strong anti-interference capability. The circuit comprises a remote control instruction circuit with anti-interference capability and a bus under-voltage protection circuit with anti-interference capability. The remote control instruction circuit is composed of two photoelectric couplers, a peripheralcircuit and a voltage comparator. The anti-interference instruction circuit comprises a switching-on circuit and a switching-off circuit. The under-voltage protection circuit comprises a control circuit which is composed of a voltage comparator and a peripheral circuit, and a switching circuit of an MOS transistor. The remote control instruction and bus under-voltage protection circuit provided by the invention can realize remote control instruction switching and input bus under-voltage protection functions, and can effectively avoid misoperation caused by signal interference.

Description

technical field [0001] The invention relates to a remote control command and bus undervoltage protection circuit with strong anti-interference capability, which belongs to the general technical field of aerospace, and in particular to a remote control command with strong anti-interference capability and bus undervoltage applied to aerospace electronic products. The protection circuit, and its method can also be widely used in ground electronic equipment. Background technique [0002] With the development of mission requirements of aerospace technology, in order to meet the requirements of users, the types of electronic equipment onboard are showing a trend of increasing. At the same time, the safety and reliability of satellites are declining with the increase of electrical equipment. In order to ensure When a single device fails, it does not affect the functional performance, safety and reliability of the entire star, and puts forward new requirements for the switch control...

Claims

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Application Information

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IPC IPC(8): H02H7/22H02H7/26H02H3/24H02J13/00
CPCH02H7/22H02H7/262H02H3/24H02J13/0004Y04S10/20Y02E60/00
Inventor 马涛朱博威李嘉丽汪伟光张宇环高逸飞王森王儒王强杨庆君
Owner BEIJING SATELLITE MFG FACTORY
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