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A fault signal locking circuit

A technology for locking circuits and fault signals, applied to logic circuits with logic functions, etc., can solve the problems of high circuit complexity and achieve the effects of fast response, simple circuit and high reliability

Active Publication Date: 2018-05-15
ZHUZHOU NAT ENG RES CENT OF CONVERTERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, many ways to realize locking circuits are realized through programmable logic devices or complex logic gate circuits, and the complexity of the circuits is relatively high.

Method used

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  • A fault signal locking circuit
  • A fault signal locking circuit

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 As shown, the fault signal locking circuit of this embodiment includes a triode V1 and a triode V2, the base of the triode V1 is connected to the collector of the triode V2, the collector of the triode V1 is connected to the base of the triode V2, and the collector of the triode V1 Connect to the power supply VCC through a resistor R1, the emitter of the triode V1 is grounded, and a resistor R5 is connected in parallel between the base and emitter of the triode V1,

[0015] The collector of the triode V2 is connected to the power supply VCC through a resistor R2, the emitter of the triode V2 is grounded, a resistor R3 is connected in parallel between the base of the triode V2 and the emitter, and the base of the triode V2 is connected to the signal input terminal through a resistor R4 , the base of the triode V1 is conn...

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PUM

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Abstract

The invention discloses a fault signal locking circuit, comprising a triode V1 and a triode V2, the base of the triode V1 is connected to the collector of the triode V2, the collector of the triode V1 is connected to the base of the triode V2 The collector of the triode V1 is connected to the power supply VCC through a resistor R1, the emitter of the triode V1 is grounded, a resistor R5 is connected in parallel between the base and the emitter of the triode V1, the collector of the triode V2 The electrode is connected to the power supply VCC through a resistor R2, the emitter of the triode V2 is grounded, a resistor R3 is connected in parallel between the base and the emitter of the triode V2, and the base of the triode V2 is connected to the power supply through a resistor R4. The signal input terminal is connected, the base of the triode V1 is connected to the signal output terminal, and the collector of the triode V1 is connected to the reset signal terminal. The circuit has the advantages of simple and reliable circuit, quick response and small output delay.

Description

technical field [0001] The invention mainly relates to the technical field of circuits, in particular to a fault signal locking circuit. Background technique [0002] In some protection circuit applications, the protection circuit often needs to judge whether to output a protection signal according to an external fault signal. However, many of these external fault signals are short-term transient signals, which are not conducive to outputting a steady-state protection Signal. A common way to solve this problem is to use programmable logic devices to lock transient fault signals to output a steady-state protection signal. However, at present, many methods for implementing locking circuits are implemented by programmable logic devices or complex logic gate circuits, and the complexity of the circuits is relatively high. Contents of the invention [0003] The technical problem to be solved by the present invention lies in: aiming at the technical problems existing in the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/20
Inventor 曾迪晖杨磊徐振初蕊王桂华
Owner ZHUZHOU NAT ENG RES CENT OF CONVERTERS