CN202334484U

CN202334484U - Starting signal generating circuit

Info

Publication number: CN202334484U
Application number: CN2011204875131U
Authority: CN
Inventors: 苏丹
Original assignee: TIANJIN SHENGDAN ELECTRONIC TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: TIANJIN SHENGDAN ELECTRONIC TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2011-11-30
Filing date: 2011-11-30
Publication date: 2012-07-11
Anticipated expiration: 2021-11-30

Abstract

The utility model relates to a starting signal generating circuit. The circuit is technologically characterized by comprising an input processing circuit and output processing circuits; the input processing circuit comprises a regulated power supply V+, a comparator N1, a transistor V1 and a transistor V2; each output processing circuit comprises a regulated power supply U1, a light emitting diode D, an optical coupler N2 and a transistor V3; the regulated power supply U1 is additionally arranged onto the optical coupler N2 and the transistor V3; the anode of the light emitting diode D is connected with emitters of the transistor V1 and the transistor V2; the cathode of the light emitting diode D is connected onto the input end of the optical coupler N2; the output end of the optical coupler N2 is connected onto the base of the transistor V3; and the emitter of the transistor V3 serves as the signal output end. The circuit has the following advantages and positive effects that the circuit is reasonable in design; and the input processing and output processing parts adopt completely independent power supplies which are isolated from each other in a non-common-ground manner, so that output signals and starting signals are completely isolated and do not interfere with each other, thus ensuring normal work of the circuit and improving the signal response speed.

Description

A kind of enabling signal generation circuit

Technical field

The utility model relates to signal generating circuit, especially a kind of enabling signal generation circuit.

Background technology

At present, in aerospace engineering, often need enabling signal generation circuit, promptly all responses will be accomplished under the commander of an enabling signal synchronously.The subject matter that existing enabling signal generation circuit exists is: response speed is slow; The output signal Synchronization is bad; And occur mutual electronic jamming between enabling signal and controlled signal and cause poor reliability, be difficult to satisfy some to precise control property have relatively high expectations occasion, therefore; Press for that a kind of response speed is fast, the output signal Synchronization is good, the enabling signal generation circuit that reliability is high.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of prior art, and a kind of reasonable in design, response speed is fast, reliability is high enabling signal generation circuit is provided.

The utility model solves its technical problem and takes following technical scheme to realize:

A kind of enabling signal generation circuit; Comprise input processing circuit and output processing circuit; Input processing circuit comprises stabilized voltage power supply V+, comparator N1, transistor V1, transistor V2; Stabilized voltage power supply V+ is added on comparator N1, transistor V1 and the transistor V2; The switching signal of input is added to the positive input terminal of comparator N1, and the output of comparator N1 is connected with the base stage of transistor V2 with transistor V1, and the emitter of the emitter of transistor V1 and transistor V2 is connected on the output processing circuit jointly; Output processing circuit comprises stabilized voltage power supply U1, light-emitting diode D, optocoupler N2, transistor V3; Stabilized voltage power supply U1 is added on optocoupler N2 and the transistor V3; The positive pole of light-emitting diode D is connected with the emitter of transistor V2 with transistor V1; The negative pole of light-emitting diode D is connected on the optocoupler N2 input, and the output of optocoupler N2 connects on the base stage of transistor V3, and the emitter of transistor V3 is exported as signal.

And described output processing circuit is a multichannel, and each output processing circuit includes independently stabilized voltage power supply and optocoupler.

The advantage and the good effect of the utility model are:

The utility model is reasonable in design; Input is handled and output processing part divides employing complete independent current source, does not isolate mutually, so output signal and enabling signal are that the signal of isolating does not fully disturb mutually altogether; Guarantee the operate as normal of circuit, improved the response speed of signal.

Description of drawings

Fig. 1 is the circuit diagram of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is done further detailed description:

A kind of enabling signal generation circuit; As shown in Figure 1; Comprise input processing circuit and a plurality of identical output processing circuits; Input processing circuit comprises stabilized voltage power supply V+, comparator N1, transistor V1, transistor V2 and resistance R 1, R2, R3, R4, R5, R6, R7, and stabilized voltage power supply V+ is added on comparator N1, transistor V1 and the transistor V2, and the switching signal of input is added to the positive input terminal of comparator N1; The output of comparator N1 is connected with the base stage of transistor V2 with transistor V1, and the emitter of the emitter of transistor V1 and transistor V2 is connected on the output processing circuit jointly; Each output processing circuit comprises stabilized voltage power supply U1, light-emitting diode D, optocoupler N2, transistor V3, resistance R 8, resistance R 9 and resistance R 10; Stabilized voltage power supply U1 is added on optocoupler N2 and the transistor V3; The positive pole of light-emitting diode D is connected with the emitter of transistor V2 with transistor V1; The negative pole of light-emitting diode D is connected on the optocoupler N2 input, and the output of optocoupler N2 connects on the base stage of transistor V3, and the emitter of transistor V3 carries out signal output as output.

The operation principle of enabling signal generation circuit is: when enabling signal switch S 0 was connected, when the enabling signal of input was connected, signal was added to the positive input terminal of quick comparator N1; This moment N1 the output high level, transistor V1 conducting, transistor V2 ends; Light-emitting diode D1 lights; Optocoupler N2 conducting, transistor V3 conducting, OUT1 exports high level.Because input processing circuit and the employed stabilized voltage power supply V+ of output processing circuit and U1 are two groups of fully independently power supplys, do not isolate mutually, so output signal and enabling signal are that the signal of isolating does not fully disturb mutually altogether.When enabling signal switch S 0 was broken off, the positive input terminal of comparator N1 was unsettled fast, the negative 1/2V+ that is input as of N1, and the N1 output low level, transistor V1 is by being output as zero, and back optocoupler N2 output also is zero, and transistor V3 ends, and OUT1 output also is zero.An enabling signal often will be controlled many roads signal and moves simultaneously in practical application; Though the utility model control multichannel output signal; But can expand to 10 the tunnel, the 20 tunnel, in addition more, therefore; Need N road independent current source and optocoupler not to disturb mutually, guarantee the circuit operate as normal to guarantee to isolate each other between enabling signal and controlled signal.

It is emphasized that; The described embodiment of the utility model is illustrative; Rather than it is determinate; Therefore the utility model is not limited to the embodiment described in the embodiment, every by those skilled in the art according to other execution modes that the technical scheme of the utility model draws, belong to the scope of the utility model protection equally.

Claims

1. enabling signal generation circuit; It is characterized in that: comprise input processing circuit and output processing circuit; Input processing circuit comprises stabilized voltage power supply V+, comparator N1, transistor V1, transistor V2; Stabilized voltage power supply V+ is added on comparator N1, transistor V1 and the transistor V2; The switching signal of input is added to the positive input terminal of comparator N1, and the output of comparator N1 is connected with the base stage of transistor V2 with transistor V1, and the emitter of the emitter of transistor V1 and transistor V2 is connected on the output processing circuit jointly; Output processing circuit comprises stabilized voltage power supply U1, light-emitting diode D, optocoupler N2, transistor V3; Stabilized voltage power supply U1 is added on optocoupler N2 and the transistor V3; The positive pole of light-emitting diode D is connected with the emitter of transistor V2 with transistor V1; The negative pole of light-emitting diode D is connected on the optocoupler N2 input, and the output of optocoupler N2 connects on the base stage of transistor V3, and the emitter of transistor V3 is exported as signal.

2. a kind of enabling signal generation circuit according to claim 1, it is characterized in that: described output processing circuit is a multichannel, each output processing circuit includes independently stabilized voltage power supply and optocoupler.