CN209728148U - A kind of current switch circuit in signal control device - Google Patents
A kind of current switch circuit in signal control device Download PDFInfo
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- CN209728148U CN209728148U CN201822027086.3U CN201822027086U CN209728148U CN 209728148 U CN209728148 U CN 209728148U CN 201822027086 U CN201822027086 U CN 201822027086U CN 209728148 U CN209728148 U CN 209728148U
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- 230000001681 protective effect Effects 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 10
- 238000012795 verification Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of current switch circuits in signal control device, its key points of the technical solution are that including the first control output circuit being sequentially connected in series, second control output circuit, third controls output circuit and the 4th control output circuit, first control output circuit, second control output circuit, it is identical circuit structure that third, which controls output circuit and the 4th control output circuit, the current terminal of the input terminal connection signal control device of first control output circuit, at the switching switch of input terminal connection the first control output circuit of second control output circuit, third controls at the switching switch of input terminal connection the second control output circuit of output circuit, at the switching switch of the input terminal connection third control output circuit of 4th control output circuit.The utility model can be realized the accurate manipulation of electric current output.
Description
Technical field
The utility model relates to a kind of current switch circuits in signal control device.
Background technique
Signal control device is mainly the main signal control class equipment in measurement verification system, for large-scale measurement verification
The comprehensive integration of system or test platform, current measurement verification system is excessively complicated because using, parameter setting, signal control
Diversification causes the operation to verification system excessively cumbersome, cause can not carry out accurately manipulate and detection data it is incomplete
Situation, the switching circuit in control device are main current conveying circuit, and precision and output signal directly affect external equipment
Measurement effect and parameter error.
Utility model content
In view of the deficienciess of the prior art, can be improved the purpose of this utility model is to provide a kind of manipulation is simple
Measurement accuracy reduces the current switch circuit of measurement error being used in signal control device.
To achieve the above object, the utility model provides following technical solution: a kind of in signal control device
Current switch circuit, including the first control output circuit, the second control output circuit, third control output circuit being sequentially connected in series
With the 4th control output circuit, the described first control output circuit, the second control output circuit, third control output circuit and
4th control output circuit is identical circuit structure, the input terminal connection signal control device of the first control output circuit
The input terminal connection first of current terminal, the second control output circuit controls at the switching switch of output circuit, third control output
At the switching switch of input terminal connection the second control output circuit of circuit, the input terminal of the 4th control output circuit connects third
At the switching switch for controlling output circuit, the control output circuit includes current output terminal and switching control end, the electricity
It flows output end and is used for output current signal, the switching control end is used to control the output on-off of current output terminal.
The utility model is further arranged to: the switching control end includes photoelectrical coupler, diode and relay, and two
The input terminal of the negative pole end connection relay coil of pole pipe, the output end of the positive terminal connection relay coil of diode, relay
The input terminal of device coil accesses external power supply, is grounded after the output end connection photoelectrical coupler manipulation end of relay coil, photoelectricity
The input terminal of the output end of the controller of the triggering end connection signal control device of coupler, the first contact of relay inputs electricity
Signal is flowed, the normally open end of the first contact connects current output terminal.
The utility model is further arranged to: the input terminal of the second contact of the relay connects the input of the first contact
End, the normal-closed end of the second contact connect the normal-closed end of the first contact, and the normally open end of the second contact connects current output terminal.
The utility model is further arranged to: the normal-closed end of the first contact of the relay of the first control output circuit
Connect with the input terminal of the first contact of the relay of the second control output circuit, second controls the of the relay of output circuit
The normal-closed end of one contact is connect with the input terminal of the first contact of the relay of third control output circuit, third control output electricity
The normal-closed end of first contact of the relay on road is connect with the input terminal of the first contact of the relay of the 4th control output circuit.
The utility model is further arranged to: it is parallel with light emitting diode on the coil of the relay, it is described to shine two
The positive terminal of pole pipe is in series with protective resistance.
The utility model is further arranged to: the diode is Schottky barrier diodes.
The utility model has an advantage that signal control device when carrying out the manipulation of multiple metering system, by cutting
Circuit control is changed, the electric current output of multichannel is capable of forming, so that handling during improving metering system operating measurement
And accuracy improves efficiency so that reducing measurement error and stability can be right by the setting of Schottky barrier diodes
External power supply carries out rectifying and voltage-stabilizing processing, improves the operation stability of relay, can be intuitive by the setting of light emitting diode
It observes that the relay of specific location is in operating status, by the way that protective resistance is arranged, it is excessively high to can be avoided external power supply appearance
Light emitting diode is damaged when crest voltage.
Detailed description of the invention
Fig. 1 is the system block diagram of the utility model；
Fig. 2 is the circuit of the utility model far from figure.
In figure: 1, the first control output circuit；2, the second control output circuit；3, third controls output circuit；4, the 4th
Control output circuit；5, current output terminal；6, switching control end；7, photoelectrical coupler；8, diode；9, relay；10, it shines
Diode；11, protective resistance.
Specific embodiment
Shown in referring to Fig.1, a kind of current switch circuit in signal control device of the present embodiment, including successively go here and there
First control output circuit 1, second of connection controls output circuit 2, third control output circuit 3 and the 4th control output circuit 4,
The first control output circuit 1, second controls output circuit 2, third control output circuit 3 and the 4th control output circuit
4 be identical circuit structure, the current terminal of the input terminal connection signal control device of the first control output circuit 1, the second control
At the switching switch of input terminal connection the first control output circuit 1 of output circuit 2 processed, third controls the input of output circuit 3
At the switching switch of end connection the second control output circuit 2, the input terminal connection third control output of the 4th control output circuit 4
At the switching switch of circuit 3, the control output circuit includes current output terminal 5 and switching control end 6, the electric current output
End 5 is used for output current signal, and the switching control end 6 is used to control the output on-off of current output terminal 5.
As shown in Fig. 2, the switching control end 6 includes photoelectrical coupler 7 (PS2702_1), (diode of diode 8
8 be Schottky barrier diodes 8MBRS140T3) and relay 9 (HFD115F/024-1ZS3BGF), the negative pole end of diode 8
The input terminal of 9 coil of relay is connected, the positive terminal of diode 8 connects the output end of 9 coil of relay, 9 coil of relay
Input terminal accesses external power supply (24V power supply), is grounded after output end connection 7 manipulation end of photoelectrical coupler of 9 coil of relay, light
The output end of the controller of the triggering end connection signal control device of electric coupler 7, the input terminal of the first contact of relay 9 are defeated
Enter current signal, the normally open end of the first contact connects current output terminal 5.
The input terminal of second contact of the relay 9 connects the input terminal of the first contact, and the normal-closed end of the second contact connects
The normal-closed end of the first contact is connect, the normally open end of the second contact connects current output terminal 5.
The normal-closed end of first contact K1 of the relay 9 of the first control output circuit 1 and the second control output circuit 2
Relay 9 the first contact K2 input terminal connection, second control output circuit 2 relay 9 the first contact it is normally closed
End is connect with the input terminal of the first contact K3 of the relay 9 of third control output circuit 3, third control output circuit 3 after
The normal-closed end of first contact of electric appliance 9 is connect with the input terminal of the first contact K4 of the relay 9 of the 4th control output circuit 4.
It is parallel on the coil of the relay 9 light emitting diode 10 (red diodes 8), the light emitting diode 10
Positive terminal is in series with protective resistance 11.
By using above-mentioned technical proposal, signal control device is when carrying out the manipulation of multiple metering system, by switching
Circuit control is capable of forming the electric current output of multichannel so that handling during improving metering system operating measurement and
Accuracy improves efficiency so that reducing measurement error and stability can be external by the setting of Schottky barrier diodes 8
Portion's power supply carries out rectifying and voltage-stabilizing processing, improves the operation stability of relay 9, passes through the setting of light emitting diode 10, Neng Gouzhi
It observes that the relay 9 of specific location is in operating status, by the way that protective resistance 11 is arranged, can be avoided external power supply appearance
Light emitting diode 10 is damaged when crossing peak voltage.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of current switch circuit in signal control device, it is characterised in that: including the first control being sequentially connected in series
Output circuit, the second control output circuit, third control output circuit and the 4th control output circuit, first control are defeated
Circuit, the second control output circuit, third control output circuit and the 4th control output circuit are identical circuit structure out,
The current terminal of the input terminal connection signal control device of first control output circuit, the input terminal connection of the second control output circuit
At the switching switch of first control output circuit, the second control output circuit of input terminal connection of third control output circuit is cut
It changes at switch, at the switching switch of the input terminal connection third control output circuit of the 4th control output circuit, the control
Output circuit includes current output terminal and switching control end, and the current output terminal is used for output current signal, the switching control
End processed is used to control the output on-off of current output terminal.
2. a kind of current switch circuit in signal control device according to claim 1, it is characterised in that: described
Switching control end includes photoelectrical coupler, diode and relay, and the negative pole end of diode connects the input terminal of relay coil,
The output end of the positive terminal connection relay coil of diode, the input terminal of relay coil access external power supply, relay line
It is grounded after the output end connection photoelectrical coupler manipulation end of circle, the control of the triggering end connection signal control device of photoelectrical coupler
The output end of device, the input terminal input current signal of the first contact of relay, the normally open end connection electric current output of the first contact
End.
3. a kind of current switch circuit in signal control device according to claim 2, it is characterised in that: described
The input terminal of second contact of relay connects the input terminal of the first contact, and the normal-closed end of the second contact connects the normal of the first contact
The normally open end of closed end, the second contact connects current output terminal.
4. a kind of current switch circuit in signal control device according to claim 3, it is characterised in that: described
First touching of the relay of the normal-closed end of the first contact of the relay of the first control output circuit and the second control output circuit
The input terminal connection of point, the normal-closed end and third of the first contact of the relay of the second control output circuit control output circuit
The input terminal of first contact of relay connects, and third controls the normal-closed end and the 4th of the first contact of the relay of output circuit
Control the input terminal connection of the first contact of the relay of output circuit.
5. a kind of current switch circuit in signal control device according to claim 2, it is characterised in that: described
Light emitting diode is parallel on the coil of relay, the positive terminal of the light emitting diode is in series with protective resistance.
6. a kind of current switch circuit in signal control device according to claim 2, it is characterised in that: described
Diode is Schottky barrier diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822027086.3U CN209728148U (en) | 2018-12-04 | 2018-12-04 | A kind of current switch circuit in signal control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822027086.3U CN209728148U (en) | 2018-12-04 | 2018-12-04 | A kind of current switch circuit in signal control device |
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| Publication Number | Publication Date |
|---|---|
| CN209728148U true CN209728148U (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822027086.3U Expired - Fee Related CN209728148U (en) | 2018-12-04 | 2018-12-04 | A kind of current switch circuit in signal control device |
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| Country | Link |
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| CN (1) | CN209728148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803936A (en) * | 2020-12-23 | 2021-05-14 | 浙江中控技术股份有限公司 | Touch control's binary channels output auto-change over device |
-
2018
- 2018-12-04 CN CN201822027086.3U patent/CN209728148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803936A (en) * | 2020-12-23 | 2021-05-14 | 浙江中控技术股份有限公司 | Touch control's binary channels output auto-change over device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220413 Address after: 050005 No.169 Beixin street, Xinhua District, Shijiazhuang City, Hebei Province Patentee after: UNIT 32181 OF PLA Address before: 050005 No.169 Beixin street, Xinhua District, Shijiazhuang City, Hebei Province Patentee before: UNIT 32181 OF PLA Patentee before: BEIJING IN SHANGHAI TECHNOLOGY INNOVATION TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |