CN219611759U - Electromechanical device access sensor circuit structure - Google Patents
Electromechanical device access sensor circuit structure Download PDFInfo
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- CN219611759U CN219611759U CN202320582504.3U CN202320582504U CN219611759U CN 219611759 U CN219611759 U CN 219611759U CN 202320582504 U CN202320582504 U CN 202320582504U CN 219611759 U CN219611759 U CN 219611759U
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Abstract
The utility model discloses an electromechanical device access sensor circuit structure which comprises a connector, wherein the connecting end of the connector is respectively connected with a power supply, the ground and one end of a connecting resistor R1, the other end of the resistor R1 is connected with a b pole connecting circuit and one end of a resistor R2, the other end of the resistor R2 is connected with a sensor b pole, the c pole of the sensor is connected with a c pole connecting circuit and a signal output end, and the e pole of the sensor is connected with an e pole connecting circuit. The circuit structure can be compatible with NPN and PNP sensors, has strong anti-interference, and can correctly reshape different effective voltages into standard level for the accessed NPN or PNP sensorsNumber, thereby ensuring the stability of detection signals and providing great convenience for the selection of various proximity switches 。
Description
Technical Field
The utility model relates to the technical field of sensor connection circuits, in particular to an electromechanical device access sensor circuit structure.
Background
In the field of industrial control, the switching value signal sensor is commonly provided with an NPN sensor and a PNP sensor, wherein the NPN sensor and the PNP sensor are saturated and cut off by utilizing triodes, and output states are output; when the NPN sensor is used, when a signal triggers, an output line of the NPN sensor is connected with a 0v line, which is equivalent to outputting a low level. NPN and PNP sensors are often used interchangeably in the industry today, but few circuits are compatible for use with both, and voltages of NPN and PNP sensors are not friendly to voltages of 5v and below.
Disclosure of Invention
The utility model aims to provide an electromechanical device access sensor circuit structure so as to solve the problems in the background art. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electromechanical device inserts sensor circuit structure, includes the connector, power, ground connection and connecting resistance R1 one end are connected respectively to the link of connector, resistance R1 other end is connected b utmost point connecting circuit and resistance R2 one end, the sensor b utmost point is connected to the resistance R2 other end, the c utmost point connecting circuit of sensor c utmost point and signal output part, the e utmost point connecting circuit of sensor e utmost point.
Preferably, the sensor is a PNP sensor, the b-pole connection circuit includes a resistor R3, the resistor R3 is grounded, the c-pole connection circuit includes a resistor R4, the resistor R4 is connected to a power supply, the e-pole connection circuit includes a resistor R5, and the resistor R5 is grounded.
Preferably, the sensor is an NPN sensor, the b-pole connection circuit includes a resistor R6, the resistor R6 is connected to a power supply, the c-pole connection circuit includes a resistor R7, the resistor R7 is grounded, the e-pole connection circuit includes a resistor R8, and the resistor R8 is connected to the power supply.
Preferably, the resistances of the resistor R1 and the resistor R2 are both 10kΩ.
Preferably, the resistances of the resistor R3, the resistor R4 and the resistor R5 are 10kΩ, 10kΩ and 0, respectively.
Preferably, the resistances of the resistor R6, the resistor R7 and the resistor R8 are 10kΩ, 10kΩ and 0, respectively.
The utility model has the technical effects and advantages that: the circuit structure can be compatible with NPN and PNP sensors, has strong anti-interference, can correctly shape different effective voltages of the accessed NPN or PNP sensors into standard level models, thereby ensuring the stability of detection signals and providing great convenience for the type selection of various proximity switches.
Drawings
FIG. 1 is a circuit diagram of the present utility model;
FIG. 2 is a circuit diagram of a PNP sensor according to the present utility model;
fig. 3 is a circuit diagram of an NPN sensor according to the utility model.
In the figure, 1. A connector; a b pole connection circuit; 3.c pole connection circuit; an e-pole connection circuit; 5. and a signal output terminal.
Detailed Description
In order that the manner in which the above-recited features, advantages, objects and advantages of the present utility model are attained and can be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected or detachably connected, or integrally or mechanically connected, or electrically connected, unless otherwise explicitly stated and defined; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements.
Example 1
The circuit structure of the electromechanical equipment access sensor shown in fig. 1 comprises a connector 1, wherein the connecting end of the connector 1 is respectively connected with a power supply, the ground and one end of a connecting resistor R1, the other end of the resistor R1 is connected with a b pole connecting circuit 2 and one end of a resistor R2, the other end of the resistor R2 is connected with a sensor b pole, the c pole of the sensor is connected with a c pole connecting circuit 3 and a signal output end 5, and the e pole of the sensor is connected with an e pole connecting circuit 4.
Example 2
The circuit structure of the electromechanical device access sensor shown in fig. 2 comprises a connector 1, wherein the connecting end of the connector 1 is respectively connected with a power supply, the grounding and one end of a connecting resistor R1, the other end of the resistor R1 is connected with one end of a resistor R3 and one end of a resistor R2, the resistor R3 is grounded, the other end of the resistor R2 is connected with the b pole of the PNP sensor, the c pole of the PNP sensor is connected with one end of a resistor R4 and a signal output end 5, the resistor R4 is connected with the power supply, the e pole of the PNP sensor is connected with a resistor R5, the resistor R5 is grounded, the resistance values of the resistor R1 and the resistor R2 are 10KΩ, and the resistance values of the resistor R3, the resistor R4 and the resistor R5 are 10KΩ and 0 respectively. The normal and effective output voltage of the PNP sensor is 24v, when interference or the sensor itself is in problem, the serious voltage is possibly lower than 24v, and the characteristic b pole voltage of the npn triode is only required to be larger than 0.7v to turn on the triode. Thereby judging whether the signal is invalid.
Example 3
As shown in FIG. 3, an electromechanical device access sensor circuit structure comprises a connector 1, wherein the connecting end of the connector 1 is respectively connected with a power supply, the grounding and one end of a connecting resistor R1, the other end of the resistor R1 is connected with one end of a resistor R6 and one end of a resistor R2, the resistor R6 is connected with the power supply, the other end of the resistor R2 is connected with the b pole of an NPN sensor, the c pole of the NPN sensor is connected with the resistor R7 and the signal output end, the resistor R7 is grounded, the e pole of the NPN sensor is connected with a resistor R8, the resistor R8 is connected with the power supply, the resistance values of the resistor R1 and the resistor R2 are 10KΩ, and the resistance values of the resistor R6, the resistor R7 and the resistor R8 are 10KΩ and 0 respectively. The normal effective output voltage of the NPN sensor is 0V, the effective output voltage of the NPN sensor of each manufacturer on the market is not completely consistent when the effective output voltage is invalid and is pulled up to the working voltage through the outside, the effective output voltage of some manufacturers is about 1.1V, when interference or the sensor is in problem, the condition that the effective voltage output deviates from 0V more (for example, exceeds 0.7V) possibly occurs, and the logic level of the singlechip is misjudged when the low level exceeding 0.7V is directly input to a pin of the singlechip. At this time, the triode can be started to a fully saturated conduction state by adopting the characteristic b and e polar voltage difference of the NPN triode to be more than 0.7v, and the effective output level is pulled up to be close to the working power supply voltage through the fully conducted triode at this time, so that the singlechip is ensured to judge that the input state is a stable level.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. An electromechanical device access sensor circuit structure, includes connector, its characterized in that: the connecting end of the connector is respectively connected with a power supply, the ground and one end of a connecting resistor R1, the other end of the resistor R1 is connected with a b pole connecting circuit and one end of a resistor R2, the other end of the resistor R2 is connected with a sensor b pole, a sensor c pole is connected with a c pole connecting circuit and a signal output end, and a sensor e pole is connected with an e pole connecting circuit.
2. An electromechanical device access sensor circuit arrangement according to claim 1, wherein: the sensor is a PNP sensor, the b pole connecting circuit comprises a resistor R3, the resistor R3 is grounded, the c pole connecting circuit comprises a resistor R4, the resistor R4 is connected with a power supply, the e pole connecting circuit comprises a resistor R5, and the resistor R5 is grounded.
3. An electromechanical device access sensor circuit arrangement according to claim 1, wherein: the sensor is an NPN sensor, the b pole connecting circuit comprises a resistor R6, the resistor R6 is connected with a power supply, the c pole connecting circuit comprises a resistor R7, the resistor R7 is grounded, the e pole connecting circuit comprises a resistor R8, and the resistor R8 is connected with the power supply.
4. An electromechanical device access sensor circuit arrangement according to claim 1, wherein: the resistance values of the resistor R1 and the resistor R2 are 10KΩ.
5. An electromechanical device access sensor circuit arrangement according to claim 2, wherein: the resistance values of the resistor R3, the resistor R4 and the resistor R5 are 10KΩ, 10KΩ and 0 respectively.
6. An electromechanical device access sensor circuit arrangement according to claim 3, wherein: the resistance values of the resistor R6, the resistor R7 and the resistor R8 are 10KΩ, 10KΩ and 0 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582504.3U CN219611759U (en) | 2023-03-23 | 2023-03-23 | Electromechanical device access sensor circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320582504.3U CN219611759U (en) | 2023-03-23 | 2023-03-23 | Electromechanical device access sensor circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219611759U true CN219611759U (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320582504.3U Active CN219611759U (en) | 2023-03-23 | 2023-03-23 | Electromechanical device access sensor circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219611759U (en) |
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2023
- 2023-03-23 CN CN202320582504.3U patent/CN219611759U/en active Active
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