CN202334485U

CN202334485U - Novel starting signal generator

Info

Publication number: CN202334485U
Application number: CN2011204896034U
Authority: CN
Inventors: 苏丹; 师磷; 周珏
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 novel starting signal generator which comprises a shell and a starting signal generating circuit in the shell, wherein the shell is provided with an input channel, an output channel and a status indicator lamp. The starting signal generating circuit comprises an input processing circuit and an output processing circuit, wherein the input processing circuit comprises a voltage-stabilized power supply V+, a comparator N1, a transistor V1 and a transistor V2, and the output processing circuit comprises a voltage-stabilized power supply U1, a light-emitting diode D, an optical coupler N2 and a transistor V3. The design of the novel starting signal generator of the utility model is reasonable, and an input processing part and an output processing part adopt an entirely independent power supply and are not grounded at intervals. Output signals are completely partitioned from the starting signals without any interferes, so that the normal operation of equipment can be ensured, and the signal responding speed is accelerated.

Description

Novel enabling signal generator

Technical field

The utility model relates to signal generator, especially a kind of novel enabling signal generator.

Background technology

At present, in aerospace engineering, often need the enabling signal generator, promptly all responses will be accomplished under the commander of an enabling signal synchronously.The subject matter that existing enabling signal generator exists is: response speed is slow; And the mutual electronic jamming of appearance causes poor reliability between enabling signal and controlled signal; Be difficult to satisfy some to precise control property have relatively high expectations occasion; Therefore, press for the enabling signal generator that a kind of response speed is fast, 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 novel enabling signal generator is provided.

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

A kind of novel enabling signal generator; Connect and compose by casing and inner enabling signal generation circuit thereof; On casing, be provided with input channel, output channel and status indicator lamp; Enabling signal generation circuit comprises input processing circuit and output processing circuit; Input processing circuit comprises stabilized voltage power supply V+, comparator N1, transistor V1, transistor V2, 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; 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 connected with output channel.

And described output processing circuit is multichannel and is connected with a plurality of output channels with a plurality of status indicator lamps that casing is provided with that each output processing circuit includes independently stabilized voltage power supply and optocoupler.

And described input channel and output channel all adopt an aviation shielding socket.

And, also be provided be connected with on-off switch and with the enabling signal generation circuit handoff functionality of realization work and self check state of work-self-test switch on the described casing.

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 equipment, improved the response speed of signal.

Description of drawings

Fig. 1 is the casing front panel sketch map of the utility model;

Fig. 2 is the casing rear board sketch map of the utility model;

Fig. 3 is the structural representation of input channel and output channel;

Fig. 4 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 novel enabling signal generator is connected and composed by casing and inner enabling signal generation circuit thereof.As shown in Figure 1; The casing front panel is provided with octuple status indicator lamp 1, work-self-test switch 2 and on-off switch 3; Operating state and self check state that work-self-test switch is used for equipment switch, and under the equipment self-inspection state, provide make-and-break signal through on-off switch and realize the equipment self-inspection function.As shown in Figure 2, on the casing rear board, be respectively equipped with octuple output channel 4 and one tunnel input channel 5, input signal and output signal transmit through Aviation cable; As shown in Figure 3; The structure of output channel is that (Fig. 3 a), input channel adopts 3 core aviation shielding sockets (Fig. 3 b) to 4 core aviation shielding sockets, and the signal of input channel input is a switching signal; The signal of output channel output is 0～+ the 5V direct current signal, eight output channels are isolated and output simultaneously each other.

Enabling signal generation circuit; As shown in Figure 4; This circuit comprises input processing circuit and eight 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 is connected with output channel and carries out signal output.

The operation principle of enabling signal generation circuit is: when enabling signal switch S 0 was connected, the enabling signal of input was connected, and signal is added to the positive input terminal of quick comparator N1 rapidly; 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 is controlled 8 tunnel output signals; 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.

The method for using of the utility model is: during equipment self-inspection; To work-self-test switch places self check position (pressing); When this moment, corresponding with it on-off switch lifted, 8 passages of the state that promptly " leads to " were exported+5V voltage simultaneously, and 8 indicator lights of front panel are lighted simultaneously.When on-off switch is pressed, when promptly " breaking ", 8 passages outputs are 0, and 8 indicator lights of front panel all extinguish.Through above-mentioned self check process, can judge whether instrument is in good working order.When normal the use, will work-self-test switch places operating state (lifting), and " self check " function is cancelled at this moment; Equipment is in normal operating conditions; When the input plug of rear board was imported a switching signal, 8 output channels changed the level that 0-+5V should be arranged, promptly when the input switch signal is closure state; Be output as+5V, otherwise then be 0V.

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. novel enabling signal generator; Connect and compose by casing and inner enabling signal generation circuit thereof; It is characterized in that: on casing, be provided with input channel, output channel and status indicator lamp; Enabling signal generation circuit comprises input processing circuit and output processing circuit; Input processing circuit comprises stabilized voltage power supply V+, comparator N1, transistor V1, transistor V2, 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; 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 connected with output channel.

2. novel enabling signal generator according to claim 1; It is characterized in that: described output processing circuit is multichannel and is connected with a plurality of output channels with a plurality of status indicator lamps that casing is provided with that each output processing circuit includes independently stabilized voltage power supply and optocoupler.

3. novel enabling signal generator according to claim 1 is characterized in that: described input channel and output channel all adopt an aviation shielding socket.

4. according to each described novel enabling signal generator of claim 1 to 3, it is characterized in that: also be provided be connected with on-off switch and with the enabling signal generation circuit handoff functionality of realization work and self check state of work-self-test switch on the described casing.