CN207677706U - NPN/PNP sensors access device in low-pressure system - Google Patents
NPN/PNP sensors access device in low-pressure system Download PDFInfo
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- CN207677706U CN207677706U CN201721759378.5U CN201721759378U CN207677706U CN 207677706 U CN207677706 U CN 207677706U CN 201721759378 U CN201721759378 U CN 201721759378U CN 207677706 U CN207677706 U CN 207677706U
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Abstract
The utility model discloses NPN/PNP sensor access devices in a kind of low-pressure system, including accessing circuit, the access circuit has sensor incoming end A, B, C and output end D for low voltage control, the NPN sensors or PNP sensors connect the sensor incoming end of the access circuit, and the NPN sensors, the signal that the output signal of PNP sensors exports after the transformation of the access circuit from output end D are identical.NPN/PNP sensors access device in the low-pressure system of the utility model, no matter front end access is NPN sensors or PNP sensors, output both after access device converts is the same, accomplish that a kind of match circuit two kinds of models of completely compatible NPN sensors and PNP sensors while can use, the flexibility and convenience that on-off model sensor uses are improved, is provided convenience for industrial automation upgrading and the development of Internet of Things.
Description
Technical field
The utility model is related to NPN/PNP sensor access devices in a kind of low-pressure system.
Background technology
In industrial control field, on-off model sensor common are NPN sensors and PNP sensors, and NPN is passed
Sensor and PNP sensors are saturation and the cut-off using triode, two states are exported, when NPN sensors and PNP sensors
The output of the two is completely contradicted, in use, when there is signal triggering, output line connects PNP sensors with power cord, is equivalent to
Export high level；In use, when there is signal triggering, output line connects NPN sensors with 0v lines, is equivalent to the low electricity of output
It is flat.This attribute of both NPN sensors and PNP sensors makes respectively when in use, rear end need two kinds it is entirely different
Match circuit when also meaning that NPN sensors and PNP sensor applications are in SCM system, needs to switch each
Quantity sensor does the circuit interface customized, and the model of sensor influences the convenience used once it is determined that can not just replace
Property.On the other hand, NPN sensors are similar with the appearance of both PNP sensors, are easy to use with, once wrong may result in sensing
Device can not work normally.
Invention content
NPN/PNP sensor access devices in a kind of low-pressure system of the utility model offer, no matter front end access is that NPN is passed
Sensor or PNP sensors are exported after access device converts and are the same, and accomplish that a kind of match circuit can be complete
Compatible two kinds of models of NPN sensors and PNP sensors use simultaneously, improve flexibility that on-off model sensor uses with
Convenience is provided convenience for industrial automation upgrading and the development of Internet of Things.
In order to solve the above-mentioned technical problem, the utility model provides NPN/PNP sensors in a kind of low-pressure system and accesses
Device, including access circuit, the access circuit has sensor incoming end A, B, C and the output end D for low voltage control, described
NPN sensors or PNP sensors connect the sensor incoming end of the access circuit, the NPN sensors, PNP sensings
The signal that the output signal of device exports after the transformation of the access circuit from output end D is identical.
In one preferred embodiment of the utility model, further comprise the access circuit include one U1 of photoelectrical coupler,
Two U2 of photoelectrical coupler, one Q1 of PMOS tube, two Q2 of PMOS tube, one Q3 of NMOS tube, two Q4 of NMOS tube；
There is one U1 of photoelectrical coupler light emitting diode one and phototriode one, two U2 of photoelectrical coupler to have luminous two
Grade pipe two and phototriode two；The anode connection input signal positive pole of light emitting diode one, light emitting diode one are born
Pole connects the anode of light emitting diode, and junction forms node M, and the cathode of light emitting diode two connects input signal power ground；
The collector of both phototriode one and phototriode two is all connected with intermediate power supplies anode, during the emitter of the two is all connected with
Between power ground；Sensor incoming end A connection input signal positive poles, sensor incoming end B connecting node M, sensor access
Hold C connection input signal power grounds；
The collector of the source electrode connection phototriode one of one Q1 of PMOS tube, the drain electrode of one Q1 of PMOS tube connect NMOS tube
The source electrode of the drain electrode of one Q3, one Q3 of NMOS tube connects output signal power ground, and the gate pole of one Q3 of one Q1 of PMOS tube and NMOS tube connects
Connect the emitter of phototriode one；
The emitter of the source electrode connection phototriode one of two Q2 of PMOS tube, the drain electrode of two Q2 of PMOS tube connect NMOS
The drain electrode of two Q4 of pipe, junction form the drain electrode of one Q3 of source electrode connection NMOS tube of two Q4 of node O, NMOS pipe, two Q2 of PMOS tube
The emitter of phototriode two is all connected with the gate pole of both two Q4 of NMOS pipes；
Output end D connecting nodes O.
In one preferred embodiment of the utility model, further comprise being also associated between the node O and output end D
Output filter circuit.
In one preferred embodiment of the utility model, further comprise the output filter circuit include filter capacitor C1 and
Be connected to after filter resistance R7, both the filter capacitor C1 and filter resistance R7 is in parallel node O and output signal power ground it
Between.
In one preferred embodiment of the utility model, further comprise the collector and PMOS tube of the phototriode one
Divider resistance R6 is also associated between one source electrode.
In one preferred embodiment of the utility model, further comprise the input signal power ground and output signal power supply
Ground is provided separately.
In one preferred embodiment of the utility model, further comprise the input signal positive pole and light emitting diode
Anode between be also associated with divider resistance R1, be also associated with divider resistance R2 between the sensor incoming end B and node M,
It is also associated with divider resistance R3 between the sensor incoming end C and input signal power ground.
NPN/PNP sensors access device in the low-pressure system of the utility model, no matter front end access be NPN sensors,
Or PNP sensors, the output both after access device converts are the same, and accomplish that a kind of match circuit can be complete
Compatible two kinds of models of NPN sensors and PNP sensors use simultaneously, improve flexibility that on-off model sensor uses with
Convenience is provided convenience for industrial automation upgrading and the development of Internet of Things.
Description of the drawings
The circuit diagram of NPN/PNP sensors access device in Fig. 1 the preferred embodiment in the utility model.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Embodiment
As shown in Figure 1, present embodiment discloses NPN/PNP sensor access devices in a kind of low-pressure system, including access electricity
Road, above-mentioned access circuit have sensor incoming end A, B, C and output end D for low voltage control, above-mentioned NPN sensors or
Person's PNP sensors connect the sensor incoming end of above-mentioned access circuit, and NPN sensors and PNP sensors all have three wiring
When in end, respectively power cord, 0v lines and output line, NPN sensors or PNP sensors access circuit, power cord, 0v lines
It is separately connected incoming end A, incoming end C and incoming end B with output line.The output signal warp of above-mentioned NPN sensors, PNP sensors
The signal exported from output end D after the transformation of above-mentioned access circuit is identical.Namely no matter accessing the input side access of circuit
It is NPN sensors or PNP sensors, after accessing the transformation of circuit, from the letter for low voltage control of output end D outputs
Number all same, accomplish a kind of match circuit can the amount of opening the light of two kinds of models of completely compatible NPN sensors and PNP sensors pass
Sensor uses simultaneously.
In the present embodiment technical solution, the concrete structure of above-mentioned access circuit is as follows：
If Fig. 1 shows, above-mentioned access circuit include one U1 of photoelectrical coupler, two U2 of photoelectrical coupler, one Q1 of PMOS tube,
Two Q2 of PMOS tube, one Q3 of NMOS tube, two Q4 of NMOS tube.
There is one U1 of photoelectrical coupler light emitting diode one and phototriode one, two U2 of photoelectrical coupler to have luminous two
Grade pipe two and phototriode two；Input signal positive pole is connected after the anode series connection divider resistance R1 of light emitting diode one,
The anode of the cathode connection light emitting diode of light emitting diode one, junction form node M, the cathode series connection point of light emitting diode
Input signal power ground is connected after piezoresistance R3；The collector of two the two of phototriode one and phototriode is all connected with centre
Positive pole, the emitter of the two respectively after series resistance R4, R5 with being all connected with intermediate power supplies；The A connections of sensor incoming end are defeated
It is positive to enter signal power source, connecting node M after sensor incoming end B series connection divider resistances R2, sensor incoming end C connections input letter
Number power ground；
The collector of phototriode one is connected after the source series divider resistance R6 of one Q1 of PMOS tube, one Q1's of PMOS tube
The drain electrode of one Q3 of drain electrode connection NMOS tube, the source electrode of one Q3 of NMOS tube connect output signal power ground, one Q1 of PMOS tube and NMOS tube
The gate pole of one Q3 is all connected with the emitter of phototriode one；
The emitter of the source electrode connection phototriode one of two Q2 of PMOS tube, the drain electrode of two Q2 of PMOS tube connect NMOS tube
The drain electrode of two Q4, junction form the drain electrode of one Q3 of source electrode connection NMOS tube of two Q4 of node O, NMOS pipe, two Q2 of PMOS tube and
The gate pole of both two Q4 of NMOS pipes is all connected with the emitter of phototriode two；
Output end D is connected after node series filtering circuit, above-mentioned output filter circuit includes filter capacitor C1 and filtered electrical
R7 is hindered, is connected between node O and output signal power ground after both above-mentioned filter capacitor C1 and filter resistance R7 are in parallel.
In the present embodiment technical solution technical solution, above-mentioned input signal positive pole connects 24V power supplys, intermediate power supplies anode
5V power supplys are connect, in order to avoid the interference of input and output end signal, above-mentioned input signal power ground and output signal power ground separate
Setting.
The access circuit of the above structure, the course of work are as follows：
(1) sensor side of access circuit does not access when opening the light quantity sensor：
One U1 of photoelectrical coupler and two U2 of photoelectrical coupler are both turned on, one Q1 of PMOS tube, two Q2 of PMOS tube, NMOS tube one
Q3, two Q4 of NMOS tube gate pole be high level, one Q1 of PMOS tube, PMOS tube two Q2 shutdowns, NMOS tube one Q3, NMOS
Pipe two Q4 conductings, output end D are grounded by one Q3 of NMOS tube, two Q4 of NMOS tube, export low level.
(2) the sensor side access of access circuit is opened the light quantity sensor, but when sensor does not have signal output：
The course of work is with (1), and details are not described herein again.
(3) sensor side of access circuit accesses NPN sensors：
Photoelectrical coupler one U1 conductings, two U2 of photoelectrical coupler are turned off, at this time both one Q3 of one Q1 of PMOS tube and NMOS tube
Gate pole be high level, the gate pole of both two Q4 of two Q2 of PMOS tube and NMOS tube is low level, then one Q1 of PMOS tube and
NMOS tube two Q4 shutdowns, two Q2 of PMOS tube and NMOS tube one Q3 conductings, output end D access 5v by two Q2 of PMOS tube, and output is high
Level.
(4) sensor side of access circuit accesses PNP sensors：
Photoelectrical coupler one U1 shutdowns, photoelectrical coupler two U2 conductings, the door of both two Q4 of two Q2 of PMOS tube and NMOS tube
Pole is high level, and the gate pole of both one Q1 and NMOS pipes of PMOS tube, one Q3 is low level, then two Q2 of PMOS tube and NMOS tube
One Q3 is turned off, and one Q1 of PMOS tube and NMOS tube two Q4 conductings, output end D are accessed by one Q1 of PMOS tube, NMOS tube two Q4 and R6
5v exports high level.
The access circuit of the above structure forms Boolean value output sensor (NPN sensors, PNP sensors) and accesses low-pressure system
The match circuit of (such as low pressure MCU) accomplishes that a kind of match circuit can completely compatible NPN sensors and PNP sensors two
Opening the light for kind of model while using quantity sensor, improves the flexibility and convenience that on-off model sensor uses, industry oneself
Dynamicization upgrades and the development of Internet of Things is provided convenience.
In addition, the effect of above-mentioned photoelectrical coupler one and photoelectrical coupler two is to provide switching signal, switching signal is provided
Electric-controlled switch can also be triode, relay etc., preferably use photoelectrical coupler herein, but be not limited to photoelectric coupling
Device needs the type that can change electric-controlled switch according to actual design.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model
Protection domain it is without being limited thereto.Those skilled in the art on the basis of the utility model made by equivalent substitute or change
It changes, both is within the protection scope of the present invention.The scope of protection of the utility model is subject to claims.
Claims (7)
1. NPN/PNP sensors access device in a kind of low-pressure system, it is characterised in that：Including accessing circuit, the access circuit
Output end (D) with sensor incoming end (A, B, C) and for low voltage control, the NPN sensors or PNP sensors connect
Connect it is described access circuit sensor incoming end, the NPN sensors, PNP sensors output signal through the access circuit
Transformation after from output end (D) export signal it is identical.
2. NPN/PNP sensors access device in low-pressure system as described in claim 1, it is characterised in that：The access circuit
Including photoelectrical coupler one (U1), photoelectrical coupler two (U2), PMOS tube one (Q1), PMOS tube two (Q2), NMOS tube one (Q3),
NMOS tube two (Q4)；
There is photoelectrical coupler one (U1) light emitting diode one and phototriode one, photoelectrical coupler two (U2) to have luminous two
Grade pipe two and phototriode two；The anode connection input signal positive pole of light emitting diode one, light emitting diode one are born
Pole connects the anode of light emitting diode, and junction forms node M, and the cathode of light emitting diode two connects input signal power ground；
The collector of both phototriode one and phototriode two is all connected with intermediate power supplies anode, during the emitter of the two is all connected with
Between power ground；Sensor incoming end A connection input signal positive poles, sensor incoming end B connecting node M, sensor access
Hold C connection input signal power grounds；
The collector of the source electrode connection phototriode one of PMOS tube one (Q1), the drain electrode of PMOS tube one (Q1) connect NMOS tube one
(Q3) source electrode of drain electrode, NMOS tube one (Q3) connects output signal power ground, the door of PMOS tube one (Q1) and NMOS tube one (Q3)
Pole is all connected with the emitter of phototriode one；
The emitter of the source electrode connection phototriode one of PMOS tube two (Q2), the drain electrode of PMOS tube two (Q2) connect NMOS tube two
(Q4) drain electrode, junction form node O, the drain electrode of the source electrode connection NMOS tube one (Q3) of NMOS tube two (Q4), PMOS tube two
(Q2) and the gate pole of both NMOS tubes two (Q4) is all connected with the emitter of phototriode two；
Output end (D) connecting node O.
3. NPN/PNP sensors access device in low-pressure system as claimed in claim 2, it is characterised in that：The node O and defeated
It is also associated with output filter circuit between outlet (D).
4. NPN/PNP sensors access device in low-pressure system as claimed in claim 3, it is characterised in that：The output filtering
Circuit includes filter capacitor (C1) and filter resistance (R7), is connected after both the filter capacitor (C1) and filter resistance (R7) are in parallel
It is connected between node O and output signal power ground.
5. NPN/PNP sensors access device in low-pressure system as claimed in claim 2, it is characterised in that：The phototriode
It is also associated with divider resistance (R6) between the collector and the source electrode of PMOS tube one of pipe one.
6. NPN/PNP sensors access device in low-pressure system as claimed in claim 2, it is characterised in that：The input signal
Power ground and output signal power ground are provided separately.
7. NPN/PNP sensors access device in low-pressure system as claimed in claim 2, it is characterised in that：The input signal
Be also associated with divider resistance (R1) between positive pole and the anode of light emitting diode, the sensor incoming end B and node M it
Between be also associated with divider resistance (R2), be also associated with divider resistance between the sensor incoming end C and input signal power ground
(R3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721759378.5U CN207677706U (en) | 2017-12-16 | 2017-12-16 | NPN/PNP sensors access device in low-pressure system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721759378.5U CN207677706U (en) | 2017-12-16 | 2017-12-16 | NPN/PNP sensors access device in low-pressure system |
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| CN207677706U true CN207677706U (en) | 2018-07-31 |
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| CN201721759378.5U Active CN207677706U (en) | 2017-12-16 | 2017-12-16 | NPN/PNP sensors access device in low-pressure system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888183A (en) * | 2017-12-16 | 2018-04-06 | 苏州元谋智能机器人系统有限公司 | NPN/PNP sensors access device in low-pressure system |
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2017
- 2017-12-16 CN CN201721759378.5U patent/CN207677706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888183A (en) * | 2017-12-16 | 2018-04-06 | 苏州元谋智能机器人系统有限公司 | NPN/PNP sensors access device in low-pressure system |
| CN107888183B (en) * | 2017-12-16 | 2024-03-15 | 苏州新优化投资咨询有限公司 | NPN/PNP sensor access device in low-voltage system |
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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: 20220228 Address after: Room 707A, Guanghong building, No. 287, Dongping street, Dushuhu, Suzhou Industrial Park, Jiangsu 215000 Patentee after: Suzhou New Optimization Investment Consulting Co.,Ltd. Address before: 215000 units 6-701 and 702, creative industrial park, No. 328, Xinghu street, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU UMORE ROBOTICS Co.,Ltd. |
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| TR01 | Transfer of patent right |