CN208796064U - A kind of multifunctional multiplexing port device - Google Patents
A kind of multifunctional multiplexing port device Download PDFInfo
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- CN208796064U CN208796064U CN201821433097.5U CN201821433097U CN208796064U CN 208796064 U CN208796064 U CN 208796064U CN 201821433097 U CN201821433097 U CN 201821433097U CN 208796064 U CN208796064 U CN 208796064U
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- variable resistance
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- controlled switch
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Abstract
The utility model discloses a kind of multifunctional multiplexing port devices, the multiplexing port device includes sampling resistor R1, variable resistance R2, current-limiting resistance R3, single-chip microcontroller, 5V power supply, capacity cell C1 and gate controlled switch, wherein, the sampling resistor R1 and variable resistance R2 is connected in series, the one end the sampling resistor R1 is electrically connected with 5V power supply, the gate controlled switch and capacity cell C1 are arranged in parallel respectively in the both ends variable resistance R2, the variable resistance R2, gate controlled switch, the one end capacity cell C1 is connect with ground wire, the variable resistance R2, gate controlled switch, the capacity cell C1 other end links together, and as analog voltage amount, the shared input mouth of opening and closing signal amount and frequency quantity, the capacity cell C1 other end and current-limiting resistance R3 are electrically connected, the current-limiting resistance R3 and single-chip microcontroller are electrically connected.The utility model uses multifunctional multiplexing port device, reduces access interface, enhances reliability, reduces terminal digit, reduces manufacturing cost.
Description
Technical field
The utility model relates to control system technical fields, and in particular to a kind of multifunctional multiplexing port device.
Background technique
There are a large amount of analog voltage amount, opening and closing signal amount and frequency quantity signals to need by control system in Industry Control
Acquisition.Existing multiplexing port device there are unreasonable structural design, need those skilled in the art develop it is a kind of novel
Multifunctional multiplexing port device.
Utility model content
Purpose of the utility model is to solve above-mentioned the deficiencies in the prior art, provide a kind of multi-functional multiple
Use port device.
In order to reach above-mentioned purpose of utility model, a kind of the technical scheme that the utility model is provided is as follows: multifunctional multiplexing
Port device, the multiplexing port device include sampling resistor R1, variable resistance R2, current-limiting resistance R3, single-chip microcontroller, 5V power supply, electricity
Hold element C1 and gate controlled switch, wherein the sampling resistor R1 and variable resistance R2 is connected in series, the one end the sampling resistor R1
Be electrically connected with 5V power supply, the gate controlled switch and capacity cell C1 are arranged in parallel respectively in the both ends variable resistance R2, it is described can
Power transformation resistance R2, gate controlled switch, the one end capacity cell C1 are connect with ground wire, the variable resistance R2, gate controlled switch, capacity cell
The C1 other end links together, and the shared input mouth as analog voltage amount, opening and closing signal amount and frequency quantity, the capacitor
The element C1 other end and current-limiting resistance R3 are electrically connected, and the current-limiting resistance R3 and single-chip microcontroller are electrically connected.
Preferably, the variable resistance R2 be can temperature sensor variation temperature sensor, the sampled electricity of 5V power supply
It hinders R1 and variable resistance R2 series winding to divide, the variation of variable resistance R2 temperature sensor, variable resistance R2 resistance value corresponding change can power transformation
The voltage corresponding change on R2 is hindered, the induction temperature for arriving current variable resistance R2 in single-chip microcontroller is input to through current-limiting resistance R3
Degree.
Preferably, the capacity cell C1 uses high frequency ceramic disc capacitor, capacity 0.001-0.01uF.
Based on the above-mentioned technical proposal, the utility model has following technological merit compared with prior art:
The utility model uses multifunctional multiplexing port device, reasonable in design, reduces access interface, and enhancing is reliable
Property, terminal digit is reduced, manufacturing cost is reduced.
Detailed description of the invention
Fig. 1 is the module connection figure of the utility model multifunctional multiplexing port device.
Specific embodiment
Explanation that the utility model is further explained with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of multifunctional multiplexing port device, which includes sampling resistor R1, can power transformation
Hinder R2, current-limiting resistance R3, single-chip microcontroller, 5V power supply, capacity cell C1 and gate controlled switch, wherein the sampling resistor R1 with can
Power transformation resistance R2 is connected in series, and the one end the sampling resistor R1 is electrically connected with 5V power supply, and the gate controlled switch and capacity cell C1 divide
It is not arranged in parallel in the both ends variable resistance R2, the variable resistance R2, gate controlled switch, the one end capacity cell C1 connect with ground wire
It connects, the variable resistance R2, gate controlled switch, the capacity cell C1 other end link together, and as analog voltage amount, opening and closing letter
The shared input mouth of number amount and frequency quantity, the capacity cell C1 other end and current-limiting resistance R3 are electrically connected, the current limliting
Resistance R3 and single-chip microcontroller are electrically connected.
The variable resistance R2 be can temperature sensor variation temperature sensor, the sampled resistance R1 of 5V power supply with can power transformation
R2 series winding partial pressure is hindered, variable resistance R2 temperature sensor changes, variable resistance R2 resistance value corresponding change, the voltage on variable resistance R2
Corresponding change is input to the temperature sensor that current variable resistance R2 is arrived in single-chip microcontroller through current-limiting resistance R3.The capacitor member
Part C1 uses high frequency ceramic disc capacitor, capacity 0.001-0.01uF.Electromagnetic interference signal can remove using capacity cell C1.
The gate controlled switch is arranged in parallel in the both ends variable resistance R2, and when normal, it is open circuit signaling that gate controlled switch, which is closed,
It is connected in parallel with variable resistance R2, variable resistance R2 resistance value is not influenced.When gate controlled switch is opened, output short-circuit closure
Signal, variable resistance R2 do not work, and do not influence to work normally.
Above content is the example and explanation of the utility model, but does not mean that the obtainable advantage of the utility model by this
Limitation may be realized in the simple transformation, and/or some embodiments to structure in all the utility model practice processes excellent
Wherein one or more of point are within the scope of protection of this application.
Claims (3)
1. a kind of multifunctional multiplexing port device, it is characterised in that: the multiplexing port device includes sampling resistor R1, variable resistance
R2, current-limiting resistance R3, single-chip microcontroller, 5V power supply, capacity cell C1 and gate controlled switch, wherein the sampling resistor R1 and variable
Resistance R2 is connected in series, and the one end the sampling resistor R1 is electrically connected with 5V power supply, the gate controlled switch and capacity cell C1 difference
It being arranged in parallel in the both ends variable resistance R2, the variable resistance R2, gate controlled switch, the one end capacity cell C1 are connect with ground wire,
The variable resistance R2, gate controlled switch, the capacity cell C1 other end link together, and as analog voltage amount, opening and closing signal
The shared input mouth of amount and frequency quantity, the capacity cell C1 other end and current-limiting resistance R3 are electrically connected, the current limliting electricity
It hinders R3 and single-chip microcontroller is electrically connected.
2. multifunctional multiplexing port device according to claim 1, it is characterised in that: the variable resistance R2 is that can incude
The resistance temperature detector of temperature change, the sampled resistance R1 of 5V power supply and variable resistance R2 series winding divide, variable resistance R2
Temperature sensor changes, variable resistance R2 resistance value corresponding change, the voltage corresponding change on variable resistance R2, defeated through current-limiting resistance R3
Enter into single-chip microcontroller to get the temperature sensor of current variable resistance R2 is arrived.
3. multifunctional multiplexing port device according to claim 1, it is characterised in that: the capacity cell C1 uses high frequency
Ceramic disc capacitor, capacity 0.001-0.01uF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821433097.5U CN208796064U (en) | 2018-09-03 | 2018-09-03 | A kind of multifunctional multiplexing port device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821433097.5U CN208796064U (en) | 2018-09-03 | 2018-09-03 | A kind of multifunctional multiplexing port device |
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| Publication Number | Publication Date |
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| CN208796064U true CN208796064U (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821433097.5U Active CN208796064U (en) | 2018-09-03 | 2018-09-03 | A kind of multifunctional multiplexing port device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221559A (en) * | 2019-06-11 | 2019-09-10 | 珠海格力电器股份有限公司 | Pin multiplexing circuit and its control method |
-
2018
- 2018-09-03 CN CN201821433097.5U patent/CN208796064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221559A (en) * | 2019-06-11 | 2019-09-10 | 珠海格力电器股份有限公司 | Pin multiplexing circuit and its control method |
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