Potentiometer adjustment calibration system

Abstract

The application discloses a potentiometer adjusting and calibrating system, a processor reads pre-stored maximum and minimum calibration voltage values in a storage module, obtains real-time potentiometer voltage dividing contact voltage values through a potentiometer voltage dividing module, judges calibration conditions according to the above data, sets the current potentiometer voltage dividing contact voltage values as the maximum or minimum calibration voltage values according to the calibration condition judgment result, saves the data to the storage module, or calculates and controls the output module to output the potentiometer calibration voltage to other circuits. The potentiometer adjusting and calibrating system can realize the rapid calibration of the potentiometer calibration voltage output to other circuits, can not only ignore the error of the potentiometer, improve the potentiometer circuit control precision, but also make the potentiometer control circuit design simpler, be favorable to improving the production efficiency, and reduce the material cost of products.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of circuit, in particular to a potentiometer adjustment calibration system. BACKGROUND

[0002] The potentiometer is a commonly used device in the circuit, which is often used for parameter adjustment in a certain range in the circuit. In application, the error of the resistance value often leads to inconsistent adjustment output range of the products in batch production, and in severe cases, it will cause abnormal function.

[0003] In the manufacturing process, in order to ensure the accuracy of the potentiometer adjustment, one or more calibrated adjustable resistors are often added in the circuit, and the adjustment and calibration of the adjustable resistor need to be manually adjusted for each device, which not only increases the work intensity of the workers, but also consumes time and effort, greatly reduces the production efficiency, and thus increases the production cost. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a potentiometer adjustment calibration system, which can realize the rapid calibration of the potentiometer output to the potentiometer calibration voltage of other circuits, not only can ignore the error of the potentiometer, improve the control precision of the potentiometer circuit, but also make the potentiometer control circuit design simpler, which is beneficial to improve the production efficiency and reduce the material cost of the product.

[0005] To solve the above technical problems, the potentiometer adjustment calibration system provided by the present application comprises a processor, a potentiometer voltage division module, a storage module and an output module.

[0006] The processor is signal connected with the potentiometer voltage division module, the storage module and the output module respectively;

[0007] The storage module is used for storing the maximum calibration voltage value Vh and the minimum calibration voltage value Vl;

[0008] The potentiometer voltage division module is used for real-time detection of the potentiometer voltage division contact voltage value Vd;

[0009] The output module is used for outputting the potentiometer calibration voltage Vj to other circuits;

[0010] The processor updates the maximum calibration voltage value Vh stored in the storage module to the current potentiometer voltage division contact voltage value Vd if Vh

[0011] Preferably, the potentiometer voltage division module comprises a voltage stabilizer and a potentiometer voltage division circuit.

[0012] The potentiometer voltage division circuit is configured to detect the voltage value Vd of the output potentiometer voltage division contact.

[0013] The voltage stabilizer is configured to provide the potentiometer with an input voltage of the potentiometer.

[0014] Preferably, the potentiometer adjustment and calibration system further comprises an input power voltage detection module.

[0015] The input power voltage detection module is configured to detect the current input power voltage value Vc of the voltage stabilizer.

[0016] The processor is configured to control the maximum calibration voltage value Vh or the minimum calibration voltage value Vl stored in the storage module to be updated, or control the output module to output the potentiometer calibration voltage Vj, if Vth < Vc; or output an alarm signal if Vth ≥ Vc; Vth is the input power voltage low limit threshold of the voltage stabilizer.

[0017] Preferably, the potentiometer adjustment and calibration system further comprises a reference voltage module.

[0018] The reference voltage module is configured to provide the processor with a reference voltage as a voltage judgment reference of the processor.

[0019] Preferably, Vrh > Vh - Vl > 0.

[0020] Vrh ≥ Vh > Vrh / 2.

[0021] Vrh / 2 > Vl > 0.

[0022] Vrl is the rated minimum voltage division voltage value of the potentiometer, and Vrh is the rated maximum voltage division voltage value of the potentiometer.

[0023] The potentiometer adjustment calibration system of the application, the processor is used for arithmetic operation and logical operation on the received data and control detection and execution of calibration program according to instructions, the processor reads the pre-stored maximum calibration voltage value Vh and minimum calibration voltage value Vl in the storage module, obtains the real-time potentiometer voltage value Vd of the voltage dividing contact through the potentiometer voltage dividing module, judges the calibration condition after obtaining the above data, sets the current potentiometer voltage value Vd as the maximum calibration voltage value Vh or the minimum calibration voltage value Vl according to the calibration condition judgment result and saves the data to the storage module, or calculates and controls the output module to output the potentiometer calibration voltage Vj to other circuits. The potentiometer adjustment calibration system can realize rapid calibration of the potentiometer calibration voltage Vj output to other circuits of the potentiometer, not only can ignore the error of the potentiometer, improve the control precision of the potentiometer circuit, but also make the potentiometer control circuit design simpler, which is beneficial to improve the production efficiency and reduce the material cost of the product. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present application, the following briefly introduces the drawings used in the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 It is a principle block diagram of an embodiment of the potentiometer adjustment calibration system of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The words such as "include" or "contain" mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. The words such as "connect" or "connected" are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. The words such as "up", "down", "left", "right" are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] Embodiment one

[0030] As shown in the figure, the potentiometer adjustment calibration system comprises a processor, a potentiometer voltage division module, a storage module and an output module; Figure 1

[0031] The processor is signal connected with the potentiometer voltage division module, the storage module and the output module respectively;

[0032] The storage module is used for storing the maximum calibration voltage value Vh and the minimum calibration voltage value Vl;

[0033] The potentiometer voltage division module is used for real-time detection of the potentiometer voltage division contact voltage value Vd;

[0034] The output module is used for outputting the potentiometer calibration voltage Vj to other circuits;

[0035] The processor updates the maximum calibration voltage value Vh stored in the storage module to the current potentiometer voltage division contact voltage value Vd if Vh

[0036] The potentiometer adjustment calibration system of embodiment one, the processor is used for arithmetic operation and logical operation of received data and control detection and execution of calibration program according to instructions, the processor reads the pre-stored maximum calibration voltage value Vh and minimum calibration voltage value Vl in the storage module, obtains the real-time potentiometer voltage division contact voltage value Vd through the potentiometer voltage division module, judges the calibration condition after obtaining the above data, sets the current potentiometer voltage division contact voltage value Vd to the maximum calibration voltage value Vh or the minimum calibration voltage value Vl according to the calibration condition judgment result and saves the data to the storage module, or calculates and controls the output module to output the potentiometer calibration voltage Vj to other circuits.

[0037] The potentiometer adjustment calibration system of embodiment one can realize the rapid calibration of the potentiometer calibration voltage Vj output to other circuits of the potentiometer, not only can ignore the error of the potentiometer, improve the control precision of the potentiometer circuit, but also make the potentiometer control circuit design simpler, which is conducive to improving the production efficiency and reducing the material cost of products. ​

[0038] Embodiment two

[0039] The potentiometer regulating and calibrating system based on the embodiment one, wherein the potentiometer voltage dividing module comprises a voltage stabilizer and a potentiometer voltage dividing circuit.

[0040] The potentiometer voltage dividing circuit is configured to detect the voltage value Vd of the output potentiometer voltage dividing contact.

[0041] The voltage stabilizer is configured to provide the potentiometer with a potentiometer input voltage.

[0042] Embodiment three

[0043] The potentiometer regulating and calibrating system based on the embodiment two further comprises an input power voltage detecting module.

[0044] The input power voltage detecting module is configured to detect the current input power voltage value Vc of the voltage stabilizer.

[0045] The processor is configured to control the maximum calibration voltage value Vh or the minimum calibration voltage value Vl stored in the storage module to be updated, or control the output module to output the potentiometer calibration voltage Vj, if Vth < Vc, or output an alarm signal if Vth ≥ Vc; Vth is the input power voltage low limit threshold of the voltage stabilizer.

[0046] Embodiment four

[0047] The potentiometer regulating and calibrating system based on the embodiment one further comprises a reference voltage module.

[0048] The reference voltage module is configured to provide the processor with a reference voltage as the voltage judgment reference of the processor.

[0049] Embodiment five

[0050] The potentiometer regulating and calibrating system based on the embodiment one, wherein Vrh > Vh - Vl > 0.

[0051] Vrh ≥ Vh > Vrh / 2.

[0052] Vrh / 2 > Vl > 0.

[0053] Vrl is the rated minimum voltage dividing voltage value of the potentiometer, and Vrh is the rated maximum voltage dividing voltage value of the potentiometer.

[0054] The above embodiments are exemplified by positive voltage, and the same applies to negative voltage.

[0055] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A potentiometer adjustment calibration system, characterized by, It includes a processor, a potentiometer voltage division module, a storage module and an output module; The processor is signal connected with the potentiometer voltage division module, the storage module and the output module respectively; The storage module is used for storing a maximum calibration voltage value Vh and a minimum calibration voltage value Vl; The potentiometer voltage division module is used for detecting a potentiometer voltage division contact voltage value Vd in real time; The output module is used for outputting a potentiometer calibration voltage Vj to other circuits; If Vh < Vd, the processor updates the maximum calibration voltage value Vh stored in the storage module as the current potentiometer voltage division contact voltage value Vd; if Vd < Vl, the processor updates the minimum calibration voltage value Vl stored in the storage module as the current potentiometer voltage division contact voltage value Vd; if Vl ≤ Vd ≤ Vh, the processor controls the output module to output the potentiometer calibration voltage Vj, Vj = (Vjh-Vjl) × (Vd-Vl) / (Vh-Vl), Vjh is a maximum limit value of the potentiometer calibration voltage, and Vjl is a minimum limit value of the potentiometer calibration voltage.

2. The potentiometer adjustment and calibration system according to claim 1, wherein The potentiometer voltage division module includes a voltage stabilizing power supply and a potentiometer voltage division circuit; The potentiometer voltage division circuit is used for detecting an output potentiometer voltage division contact voltage value Vd; The voltage stabilizing power supply is used for providing a potentiometer input voltage for the potentiometer.

3. The potentiometer adjustment and calibration system according to claim 2, wherein The potentiometer adjustment and calibration system further includes an input power supply voltage detection module; The input power supply voltage detection module is used for detecting a current input power supply voltage value Vc of the voltage stabilizing power supply; If Vth < Vc, the processor controls to update the maximum calibration voltage value Vh or the minimum calibration voltage value Vl stored in the storage module or controls the output module to output the potentiometer calibration voltage Vj; if Vth ≥ Vc, an alarm signal is output; Vth is an input power supply voltage low limit threshold of the voltage stabilizing power supply.

4. The potentiometer adjustment and calibration system according to claim 1, wherein The potentiometer adjustment and calibration system further includes a reference voltage module; The reference voltage module is used for providing a reference voltage for the processor as a voltage judgment reference of the processor.

5. The potentiometer adjustment and calibration system according to claim 1, wherein Vrh > Vh-Vl > 0; Vrh ≥ Vh > Vrh / 2; Vrh / 2 > Vl > 0; Vrl is a rated minimum voltage division voltage value of the potentiometer, and Vrh is a rated maximum voltage division voltage value of the potentiometer.

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