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Double-channel redundant power supply self-switching and restoring circuit

A circuit recovery and redundancy technology, applied in circuits, circuit devices, electrical switches, etc., can solve the problems of inability to switch and recover independently, large heating power consumption, large electromagnetic interference, etc., to achieve strong anti-vibration stress, reliable control, EMI electromagnetic interference small effect

Active Publication Date: 2022-02-18
BEIJING INST OF COMP TECH & APPL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to provide a dual-channel redundant power supply self-cutting and recovery circuit to solve the problem of large line voltage drop, large heating power consumption, large electromagnetic interference, inability to switch independently and problems in the traditional power supply switching circuit scheme. Recovery and other issues

Method used

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  • Double-channel redundant power supply self-switching and restoring circuit
  • Double-channel redundant power supply self-switching and restoring circuit
  • Double-channel redundant power supply self-switching and restoring circuit

Examples

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Embodiment 1

[0048] One dual redundant power supply autonomous switching and recovery circuit, including: input EMI filter circuit, ideal secondary tube or door control circuit, "light MOS + magnetic holding" relay control circuit, "P-channel MOS parallel" switching primary circuit. Among them, the input EMI filter circuit includes: common mode inductance L1, common mode inductance L2, differential mode inductance L2, differential mode inductance L4, differential mold capacitance C1, differential mode capacitor C2, differential mold capacitance C5, differential mode capacitance C6, total Moduling C3, Common Modular Capacitance 4, Common Mode Capacitance C7, Common Mode Capacitor C8. Ideal diode or door control circuit, including: ideal diode controller U1, ideal secondary tube controller U2, N-channel field effect tube S1, N-channel field effect tube S2, N-channel field effect tube S3, N-channel field effect tube S4 , Transient voltage suppression diode D1, transient voltage suppression diode ...

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Abstract

The invention relates to a double-channel redundant power supply self-switching and restoring circuit, and belongs to the field of power supply switching control. The circuit comprises an input EMI filter circuit, an ideal diode OR gate control circuit, an ''optical MOS + magnetic latching'' relay control circuit and a ''P-channel MOS parallel'' switching main circuit. The output end of the input EMI filter circuit is connected with the input end of the ideal diode OR gate control circuit and the input end of the ''optical MOS + magnetic latching'' relay control circuit, and the output end of one branch of the ideal diode OR gate control circuit is connected with the input end of the ''P-channel MOS parallel'' switching main circuit. The other branch output end of the ideal diode OR gate control circuit is connected with the output end of the ''P-channel MOS parallel'' switching main circuit, and the output end of the ''optical MOS + magnetic latching'' relay control circuit is connected with the input end of the ''P-channel MOS parallel'' switching main circuit. The invention has the characteristics of low line voltage drop, low thermal power consumption, small volume, low EMI electromagnetic interference, high vibration stress resistance and reliable control.

Description

Technical field [0001] The present invention belongs to the field of power switching control, and specifically, a dual redundant power supply self-cut and recovery circuit. Background technique [0002] Power supply to the on-site power supply typically includes bombing battery power supply and ground power supply, usually using ground power supply or bomb the battery, and the battery is powered by the battery, and therefore designed a dual redundancy power supply. And switching circuits are particularly important. Conventional multi-channel power switching circuits are multi-rectifier diode isolation power supply, auxiliary power supply control and high-power electromagnetic relay switching, the line pressure drop and heat transfer power consumption of the rectifier diode in this circuit, large power electromagnetic relay volume, electromagnetic Danger is large, and the anti-random vibration stress is poor, and autonomous switching and recovery is not possible. Inventive conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H03K17/16H03K17/687H01H9/54
CPCH02J9/068H03K17/162H03K17/6871H01H9/547
Inventor 胡庚解彦强陈欢徐云华
Owner BEIJING INST OF COMP TECH & APPL
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