CN215378892U - Zero point and full scale regulating circuit and circuit board - Google Patents
Zero point and full scale regulating circuit and circuit board Download PDFInfo
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- CN215378892U CN215378892U CN202022979878.8U CN202022979878U CN215378892U CN 215378892 U CN215378892 U CN 215378892U CN 202022979878 U CN202022979878 U CN 202022979878U CN 215378892 U CN215378892 U CN 215378892U
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Abstract
The utility model discloses a zero-point and full-scale regulating circuit and a circuit board, wherein the circuit comprises a double-isolation transmitter, a first potentiometer and a second potentiometer, the double-isolation transmitter comprises a corresponding signal input control end and a signal output control end, and a corresponding power input control end and a power output control end, the signal output control end comprises a group of zero-point regulating interfaces and a group of full-scale regulating interfaces, the first potentiometer is connected with the zero-point regulating interfaces, the second potentiometer is connected with the full-scale regulating interfaces, the power input control end is used for being connected in series in a power supply circuit of the signal output circuit, and the power output control end is used for being connected in series in the power supply circuit of the signal input circuit. The zero point and full scale regulating circuit of the utility model enables the signal input circuit and the signal output circuit of the signal transmission circuit to be isolated by the double isolation transmitters and enables the power supply circuits of the two circuits to be isolated, thus enhancing the anti-interference capability of the whole circuit and being beneficial to the stability of signal transmission.
Description
Technical Field
The utility model relates to the field of circuit signal transmission, in particular to a zero point and full scale adjusting circuit and a circuit board.
Background
With the rapid development of the electronic information industry, more and more electronic products are rushing into the market; circuits play an indispensable role as important carriers of electronic products. The zero-point and full-scale regulating circuit also plays an important role as a part of a circuit family, wherein the zero-point regulating function is that the zero point of signal transmission can be changed by arranging a corresponding regulating resistor at a zero-point regulating end, so that the output signal is subjected to integral offset; the full scale regulating function is also called as a gain regulating function, and is characterized in that the ratio of signal transmission can be changed by arranging a corresponding regulating resistor at a full scale regulating end, so that the ratio of isolated transmission of input and output signals is changed. However, the general zero-point and full-scale adjusting circuit has the conditions of poor signal anti-interference performance, unstable transmission process and the like.
As described above, the conventional zero-point and full-scale adjusting circuit needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The first objective of the present invention is to overcome the deficiencies of the prior art, and provide a zero-point and full-level adjusting circuit, which is applied to a signal transmission circuit requiring a zero-point and full-level adjusting function, and can effectively improve the stability of the circuit.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the zero-point and full-scale regulating circuit comprises a double-isolation transmitter, a first potentiometer and a second potentiometer, wherein the double-isolation transmitter comprises a corresponding signal input control end and a signal output control end, and a corresponding power input control end and a corresponding power output control end, the signal input control end is used for being connected in series in a signal input circuit, the signal output control end is used for being connected in series in a signal output circuit, the signal output control end comprises a group of zero-point regulating interfaces and a group of full-scale regulating interfaces, the zero-point regulating interfaces are used for being connected with the signal output circuit, the first potentiometer is connected with the zero-point regulating interfaces, the full-scale regulating interfaces are used for being connected with the signal output circuit, the second potentiometer is connected with the full-scale regulating interfaces, the power input control end is used for being connected in series in a power supply circuit of the signal output circuit, and the power output control end is used for being connected in series in a power supply circuit of the signal input circuit, when the power input control end is conducted and the power output control end is excited to be conducted, the power supply circuits of the signal output circuit and the signal input circuit are conducted to supply power.
The zero-point and full-scale regulating circuit can be applied to the existing signal transmission circuit needing the zero-point and full-scale regulating function and the power supply circuit of the signal transmission circuit, so that the signal input circuit and the signal output circuit of the signal transmission circuit are isolated by the double-isolation transmitter, and the power supply circuits of the signal input circuit and the signal output circuit are isolated, therefore, the anti-interference capability of the whole circuit is enhanced, and the stability of signal transmission is facilitated.
Preferably, the double-isolation transmitter is a TE-N series isolation transmitter, and a 17 interface and an 18 interface of the double-isolation transmitter are respectively and electrically connected with the anode and the cathode of a power supply circuit of the signal output circuit; the interfaces 10 and 11 of the double-isolation transmitter are respectively electrically connected with the anode and the cathode of a power supply circuit of the signal input circuit; the 15 interface, the 17 interface and the 16 interface of the double-isolation transmitter are respectively connected with the positive electrode pin, the negative electrode pin and the middle pin of the first potentiometer to form a zero point adjusting end; and the interface 1, the interface 2 and the interface 3 of the double-isolation transmitter are respectively connected with the cathode, the anode and the middle pin of the second potentiometer to form a full-scale adjusting end. In the scheme, the 17 interface and the 18 interface form a power input control end, so that when the power supply circuit inputs current, the 17 interface and the 18 interface are internally conducted so as to conduct the power output control end, and the 10 interface and the 11 interface form the power output control end, and after the power output control end is internally conducted, a power supply circuit of the signal input circuit can be conducted; the interface 15, the interface 17 and the interface 16 form a zero point adjusting end, wherein the interface 15 and the interface 16 are respectively a positive reference end and a negative reference end; the interface 1, the interface 2 and the interface 3 form a full scale adjusting end, and the interface 1 and the interface 2 are respectively a negative reference end and a positive reference end.
The TE-N series isolation transmitter has the following characteristics: adding and reducing the negative zero adjust resistance can lower the signal output zero. Adding and reducing a positive zero adjust resistance can increase the zero of the signal output. Adding and reducing the negative fullness adjustment resistance can reduce the ratio of the output signal to the input signal, and adding and reducing the positive zero adjustment resistance can increase the ratio of the output signal to the input signal. In practical application, a potentiometer can be used for adjusting the zero point and the full scale of the output signal. And the two ends of the resistor body of the potentiometer are respectively connected to a zero point or a positive and negative regulation reference end of the full scale. The zero point and the full scale of the output signal can be adjusted by adjusting the full scale of the signal or the rising and falling proportion of the zero point through the sliding potentiometer. The zero point positive adjustment reference terminal of the 24V power input product is different from that of other power input products, so that the zero point adjustment circuit is different. When adjusting, the potentiometer slides to the positive end to improve the zero point or the full scale of the corresponding signal. Sliding towards the negative terminal can reduce the zero point or the full scale of the corresponding signal.
Preferably, the resistance values of the first potentiometer and the second potentiometer are in the range of 10K omega-1M omega.
Preferably, the 9 interface and the 8 interface of the double-isolation transmitter are respectively used for being electrically connected with the anode and the cathode of the signal input circuit.
Preferably, the interfaces 10 and 11 of the double-isolation transmitter are respectively used for being connected with the positive pole and the negative pole of the power supply circuit of the signal input circuit.
Preferably, the power supply further comprises a first anti-interference circuit and a second anti-interference circuit, wherein two ends of the first anti-interference circuit are connected with the power supply input control end in parallel, and two ends of the second anti-interference circuit are connected with the power supply output control end in parallel.
Preferably, the transient suppression circuit further comprises a fourth diode, wherein the anode of the fourth transient suppression diode is connected in parallel with the anode pin of the second potentiometer, and the cathode of the fourth transient suppression diode is connected in parallel with the cathode pin of the second potentiometer.
Preferably, the device further comprises a third anti-jamming circuit, and two ends of the third anti-jamming circuit are connected with the signal input control end in parallel.
Preferably, the third anti-jamming circuit comprises a third transient suppression diode and a rectifier diode connected in parallel at two ends.
The second object of the present invention is to provide a circuit board, which includes a circuit board body and a circuit disposed thereon, wherein the circuit is the zero-point and full-scale adjusting circuit of the above scheme. Compared with the prior art, the circuit board of the utility model has all the advantages of the scheme because the circuit of the scheme is applied.
Drawings
FIG. 1 is a schematic diagram of the operation of the present invention;
FIG. 2 is a circuit arrangement of the present invention;
fig. 3 is a current-flow diagram of the present invention.
Description of reference numerals:
the double-isolation transmitter U1, a first potentiometer R1, a second potentiometer R2, a first transient suppression diode D1, a second transient suppression diode D2, a third transient suppression diode D3, a fourth transient suppression diode D4, a rectifier diode D5, a first filter capacitor C1 and a second filter capacitor C2.
Detailed Description
Referring to fig. 1-3, the zero-point and full-scale adjusting circuit of the present invention includes a dual-isolation transmitter U1, a first potentiometer R1 and a second potentiometer R2, wherein the dual-isolation transmitter U1 includes a corresponding signal input control end and a signal output control end, and a corresponding power input control end and a corresponding power output control end, the signal input control end is connected in series in the signal input circuit, the signal output control end is connected in series in the signal output circuit, the signal output control end includes a set of zero-point adjusting interfaces and a set of full-scale adjusting interfaces, the zero-point adjusting interfaces are connected to the signal output circuit, the first potentiometer R1 is connected to the zero-point adjusting interfaces, the full-scale adjusting interfaces are connected to the signal output circuit, the second potentiometer R2 is connected to the full-scale adjusting interfaces, the power input control end is connected in series in a power supply circuit of the signal output circuit, and the power supply output control end is used for being connected in series in a power supply circuit of the signal input circuit, and when the power supply input control end is conducted and the power supply output control end is excited to be conducted, the power supply circuits of the signal output circuit and the signal input circuit are both conducted to supply power.
The double-isolation transmitter U1 is a TE-N series isolation transmitter, and a 17 interface and an 18 interface of the double-isolation transmitter U1 are respectively and electrically connected with the anode and the cathode of a power supply circuit of the signal output circuit; the 10 interface and the 11 interface of the double-isolation transmitter U1 are respectively electrically connected with the anode and the cathode of a power supply circuit of the signal input circuit; the 15 interface, the 17 interface and the 16 interface of the double-isolation transmitter U1 are respectively connected with the anode pin, the cathode pin and the middle pin of the first potentiometer R1 to form a zero point adjusting end; and the interface 1, the interface 2 and the interface 3 of the double-isolation transmitter U1 are respectively connected with the cathode, the anode and the middle pin of the second potentiometer R2 to form a full-scale adjusting end. In the scheme, the 17 interface and the 18 interface form a power input control end, so that when the power supply circuit inputs current, the 17 interface and the 18 interface are internally conducted so as to conduct the power output control end, and the 10 interface and the 11 interface form the power output control end, and after the power output control end is internally conducted, a power supply circuit of the signal input circuit can be conducted; the interface 15, the interface 17 and the interface 16 form a zero point adjusting end, wherein the interface 15 and the interface 16 are respectively a positive reference end and a negative reference end; the interface 1, the interface 2 and the interface 3 form a full scale adjusting end, and the interface 1 and the interface 2 are respectively a negative reference end and a positive reference end.
The resistances of the first potentiometer R1 and the second potentiometer R2 range from 10K Ω to 1M Ω.
And the 9 interface and the 8 interface of the double-isolation transmitter U1 are respectively and electrically connected with the anode and the cathode of the signal input circuit.
The 10 interface and the 11 interface of the double-isolation transmitter U1 are respectively connected with the positive pole and the negative pole of the power supply circuit of the signal input circuit.
The power supply further comprises a first anti-interference circuit and a second anti-interference circuit, wherein two ends of the first anti-interference circuit are connected with the power supply input control end in parallel, and two ends of the second anti-interference circuit are connected with the power supply output control end in parallel.
The first immunity circuit includes a second filter capacitor C2 and a second transient suppression diode D2.
The second anti-interference circuit comprises a first filter capacitor C1 and a first transient suppression diode D1.
The transient suppression circuit also comprises a fourth transient suppression diode D4, wherein the anode of the fourth transient suppression diode D4 is connected in parallel with the anode pin of the second potentiometer R2, and the cathode of the fourth transient suppression diode D4 is connected in parallel with the cathode pin of the second potentiometer R2.
The signal input control circuit further comprises a third anti-jamming circuit, and two ends of the third anti-jamming circuit are connected with the signal input control end in parallel.
The third anti-jamming circuit comprises a third transient suppression diode D3 and a rectifier diode D5 which are connected in parallel at two ends.
The zero-point and full-scale regulating circuit can be applied to the existing signal transmission circuit needing the zero-point and full-scale regulating function and the power supply circuit of the signal transmission circuit, so that the signal input circuit and the signal output circuit of the signal transmission circuit are isolated by the double-isolation transmitter U1, and the power supply circuits of the signal input circuit and the signal output circuit are isolated, therefore, the anti-interference capability of the whole circuit is enhanced, and the stability of signal transmission is facilitated.
The utility model also discloses a circuit board which comprises a circuit board body and the circuit adopting the scheme.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A zero and full scale regulating circuit, characterized by: the double-isolation transmitter comprises a corresponding signal input control end and a signal output control end, and a corresponding power input control end and a power output control end, wherein the signal input control end is connected in series in a signal input circuit, the signal output control end is connected in series in a signal output circuit, the signal output control end comprises a set of zero adjustment interfaces and a set of full-scale adjustment interfaces, the zero adjustment interfaces are used for being connected with the signal output circuit, the first potentiometer is connected with the zero adjustment interfaces, the full-scale adjustment interfaces are used for being connected with the signal output circuit, the second potentiometer is connected with the full-scale adjustment interfaces, the power input control end is used for being connected in series in a power supply circuit of the signal output circuit, and the power output control end is used for being connected in series in a power supply circuit of the signal input circuit, when the power input control end is conducted and the power output control end is excited to be conducted, the power supply circuits of the signal output circuit and the signal input circuit are conducted to supply power.
2. The zero and full scale adjustment circuit of claim 1, wherein: the double-isolation transmitter is a TE-N series isolation transmitter, and a 17 interface and a 18 interface of the double-isolation transmitter are respectively and electrically connected with the anode and the cathode of a power supply circuit of the signal output circuit;
the interfaces 10 and 11 of the double-isolation transmitter are respectively electrically connected with the anode and the cathode of a power supply circuit of the signal input circuit;
the 15 interface, the 17 interface and the 16 interface of the double-isolation transmitter are respectively connected with the positive electrode pin, the negative electrode pin and the middle pin of the first potentiometer to form a zero point adjusting end;
and the interface 1, the interface 2 and the interface 3 of the double-isolation transmitter are respectively connected with the cathode, the anode and the middle pin of the second potentiometer to form a full-scale adjusting end.
3. The zero and full scale adjustment circuit of claim 1, wherein: the resistance ranges of the first potentiometer and the second potentiometer are 10K omega-1M omega.
4. The zero and full scale adjustment circuit of claim 2, wherein: and the 9 interface and the 8 interface of the double-isolation transmitter are respectively used for being electrically connected with the anode and the cathode of the signal input circuit.
5. The zero and full scale adjustment circuit of claim 2, wherein: and the interfaces 10 and 11 of the double-isolation transmitter are respectively used for being connected with the anode and the cathode of a power supply circuit of the signal input circuit.
6. The zero and full scale adjustment circuit of claim 2, wherein: the power supply further comprises a first anti-interference circuit and a second anti-interference circuit, wherein two ends of the first anti-interference circuit are connected with the power supply input control end in parallel, and two ends of the second anti-interference circuit are connected with the power supply output control end in parallel.
7. The zero and full scale adjustment circuit of claim 2, wherein: the transient suppression circuit further comprises a fourth transient suppression diode, wherein the anode of the fourth transient suppression diode is connected with the anode pin of the second potentiometer in parallel, and the cathode of the fourth transient suppression diode is connected with the cathode pin of the second potentiometer in parallel.
8. The zero and full scale adjustment circuit of claim 2, wherein: the signal input control circuit further comprises a third anti-jamming circuit, and two ends of the third anti-jamming circuit are connected with the signal input control end in parallel.
9. The zero and full scale adjustment circuit of claim 8, wherein: the third anti-jamming circuit comprises a third transient suppression diode and a rectifier diode which are connected in parallel at two ends.
10. The circuit board, including circuit board body and the circuit of setting on it, its characterized in that: the circuit is a zero and full scale adjustment circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979878.8U CN215378892U (en) | 2020-12-08 | 2020-12-08 | Zero point and full scale regulating circuit and circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022979878.8U CN215378892U (en) | 2020-12-08 | 2020-12-08 | Zero point and full scale regulating circuit and circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215378892U true CN215378892U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022979878.8U Active CN215378892U (en) | 2020-12-08 | 2020-12-08 | Zero point and full scale regulating circuit and circuit board |
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| Country | Link |
|---|---|
| CN (1) | CN215378892U (en) |
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- 2020-12-08 CN CN202022979878.8U patent/CN215378892U/en active Active
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