CN204442339U - A kind of transducer connecting circuit - Google Patents
A kind of transducer connecting circuit Download PDFInfo
- Publication number
- CN204442339U CN204442339U CN201420784460.3U CN201420784460U CN204442339U CN 204442339 U CN204442339 U CN 204442339U CN 201420784460 U CN201420784460 U CN 201420784460U CN 204442339 U CN204442339 U CN 204442339U
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- CN
- China
- Prior art keywords
- transducer
- digital buffer
- connecting circuit
- connector
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model embodiment discloses a kind of transducer connecting circuit, can make no matter analog sensor or digital sensor can output digit signals, improves the compatibility of circuit and transducer, the exploitation of circuit and ease of use are improved greatly.The utility model embodiment vehicle simulation test jig comprises: transducer and digital buffer IC; Described transducer is connected with described digital buffer IC, inputs described digital buffer IC and by described digital buffer IC, described signal is changed rear output for the signal gathered by described transducer.
Description
Technical field
The utility model relates to electronic applications, especially relates to a kind of transducer connecting circuit.
Background technology
In modern industry produces especially automated production process, the application of transducer is very widely, all relates to the use of transducer in nearly all household electrical appliance and industrial equipment.Carry out the parameters in monitoring and controlling production process with various transducer, make equipment be operated in normal condition or optimum state, and make product reach best quality.Therefore can say, do not have numerous excellent transducers, modern production also just loses basis.
On our current financial self-service equipment, especially in circulation movement, the transducer of multiple types is especially by a large amount of uses.Because miscellaneous sensor pin and signal mode are also had nothing in common with each other, making circuit compatibility become poor, is very inconvenient from the exploitation in later stage and actual use angle.
Utility model content
The utility model embodiment provides a kind of transducer connecting circuit, can unify signal mode and the pin of transducer, improves the compatibility of circuit and transducer, the exploitation of circuit and ease of use are improved greatly.
The utility model embodiment provides a kind of transducer connecting circuit, wherein, comprising:
Transducer and digital buffer IC;
Described transducer is connected with described digital buffer IC, inputs described digital buffer IC and change rear output by described digital buffer IC for the signal gathered by described transducer.
Preferably, described transducer is connected with described digital buffer IC by connector, and the interface of described connector can assign one or more transducers.
Preferably, described transducer is analog sensor or digital sensor, and described digital buffer IC comprises SN74LV244APW chip.
Preferably, described connector is in series with divider resistance, and described divider resistance is connected between the pin led of described connector and 5V power supply, and the size of described divider resistance is selected according to sensor model number.
Preferably, the pin npn of described connector is connected with the pin 2A1 of described SN74LV244APW chip.
Preferably, the pin 2Y1 of described SN74LV244APW chip is connected with resistance for output digit signals.
Preferably, the pin gnd of described connector is used for ground connection.
As can be seen from the above technical solutions, the circuit design that the utility model embodiment provides uses a digital buffer IC, the output of this IC can only output digit signals, what export when the threshold voltage of input signal higher than chip self time is high level, what export when the threshold voltage of self of input signal lower than chip is low level, an analog sensor is so just made to reach the object of output digit signals, the unification of the output signal of dissimilar sensor is so just made to become output digit signals, can directly be used by MCU, circuit compatibility is broadened appearance, the exploitation of circuit and ease of use are improved greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described describing the required accompanying drawing used to embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of transducer connecting circuit that Fig. 1 provides for the utility model embodiment;
A kind of specific embodiment circuit diagram that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of transducer connecting circuit, can unify signal mode and the pin of transducer, improves the compatibility of circuit and transducer, the exploitation of circuit and ease of use are improved greatly.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Below be described in detail respectively.
Please refer to Fig. 1, the structural representation of a kind of transducer connecting circuit that Fig. 1 provides for the utility model embodiment, comprise transducer 101 and digital buffer IC102, described transducer 101 is connected with described digital buffer IC102, input described digital buffer IC102 for the signal gathered by described transducer 101 and export signal processor to, such as MCU etc. by after described digital buffer IC102 conversion.
Here transducer can be digital sensor or analog sensor, is not construed as limiting herein.
No matter transducer 101 is digital signal or analog signal, the circuit that this embodiment provides uses the digital buffer IC of a digital buffer IC102, the output of this IC can only output digit signals, what export when the threshold voltage of input signal higher than chip self time is high level, what export when the threshold voltage of self of input signal lower than chip is low level, an analog sensor 101 is so just made to reach the object of output digit signals, the output signal of dissimilar sensor is so just made to be all digital signal, circuit compatibility is broadened appearance, the exploitation of circuit and ease of use are improved greatly.
Be described below in conjunction with the utility model specific embodiment.
Please refer to Fig. 2, a kind of specific embodiment circuit diagram that Fig. 2 provides for the utility model embodiment.This circuit is primarily of transducer and digital buffer IC part composition.Preferably, transducer assigns on connector J11, and the model of connector J11 is BM03B-GHS-TBT.J11 and model are that the digital buffer IC of SN74LV244APW links together.Because SN74LV244APW can only output digit signals, when J11 is high level by what export when the threshold voltage of 2A1 input signal higher than SN74LV244APW chip self, what export when the threshold voltage of self of J11 input signal lower than SN74LV244APW chip is low level, so no matter J11 is the object that digital sensor or analog sensor can reach output digit signals, is therefore directly to be input to the digital signal that MCU uses from resistance R108 signal out.So just make the output signal of dissimilar sensor and pin become unified, circuit compatibility is improved greatly.
Because transducer is assigned on the connectors, be connected with circuit by connector, and the pin of connector is unified standard, so just can compatible multiple sensors, facilitate replacing and the installation of transducer.
It should be noted that, connector here can be the connector of certain sensor-specific, also can be the connector of compatible multiple sensors.
Preferably, transducer connector J11 installed can be analog sensor (model 1694) or the digital sensor (model 1690) of new light.
Preferably, connector J11 is in series with divider resistance R191 or R192, and between the pin led that described divider resistance is connected on described connector J11 and 5V power supply, the size of described divider resistance is selected according to sensor model number.On divider resistance is selected, we weld different resistance according to the different choice of sensor type.For this figure, if when using analog sensor (model 1694) of new light in circuit, R191 welds and R192 does not weld; If during digital sensor (model 1690) of new light, so R192 weldering and R191 does not weld.So just make the manufacture of whole circuit and use to become convenient and simple.
Preferably, described digital buffer IC can be SN74LV244APW chip or other digital buffer IC, is not understood to restriction of the present utility model herein.
It should be noted that, when sensor type is other, the size of divider resistance calculates according to sensor model number and supply power voltage.
Preferably, the pin npn of connector J11 is connected with SN74LV244APW chip pin 2A1, and the pin 2Y1 of SN74LV244APW chip is connected with resistance for output digit signals.In present embodiment, between the pin npn of connector J11 and 5V power supply, be connected with another resistance R190.
Preferably, the pin gnd of described connector J11 is used for ground connection.
In several embodiments that the application provides, should be understood that disclosed system, device can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
Claims (7)
1. a transducer connecting circuit, is characterized in that, comprising:
Transducer and digital buffer IC;
Described transducer is connected with described digital buffer IC, inputs described digital buffer IC and by described digital buffer IC, described signal is changed rear output for the signal gathered by described transducer.
2. transducer connecting circuit according to claim 1, is characterized in that, described transducer is connected with described digital buffer IC by connector, and the interface of described connector can assign one or more transducers.
3. transducer connecting circuit according to claim 1 and 2, is characterized in that, described transducer is analog sensor or digital sensor, and described digital buffer IC comprises SN74LV244APW chip.
4. transducer connecting circuit according to claim 2, it is characterized in that, described connector is in series with divider resistance, and described divider resistance is connected between the pin led of described connector and 5V power supply, and the size of described divider resistance is selected according to sensor model number.
5. transducer connecting circuit according to claim 3, is characterized in that, the pin npn of described connector is connected with the pin 2A1 of described SN74LV244APW chip.
6. transducer connecting circuit according to claim 5, is characterized in that, the pin 2Y1 of described SN74LV244APW chip is connected with resistance for output digit signals.
7. transducer connecting circuit according to claim 6, the pin gnd of described connector is used for ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784460.3U CN204442339U (en) | 2014-12-11 | 2014-12-11 | A kind of transducer connecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784460.3U CN204442339U (en) | 2014-12-11 | 2014-12-11 | A kind of transducer connecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442339U true CN204442339U (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420784460.3U Expired - Fee Related CN204442339U (en) | 2014-12-11 | 2014-12-11 | A kind of transducer connecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204442339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449451A (en) * | 2016-04-01 | 2017-12-08 | 株式会社捷太格特 | Sensor device |
-
2014
- 2014-12-11 CN CN201420784460.3U patent/CN204442339U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449451A (en) * | 2016-04-01 | 2017-12-08 | 株式会社捷太格特 | Sensor device |
| CN107449451B (en) * | 2016-04-01 | 2021-08-10 | 株式会社捷太格特 | Sensor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20211211 |