CN110971229A - Electronic signal calibration system - Google Patents
Electronic signal calibration system Download PDFInfo
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- CN110971229A CN110971229A CN201911363787.7A CN201911363787A CN110971229A CN 110971229 A CN110971229 A CN 110971229A CN 201911363787 A CN201911363787 A CN 201911363787A CN 110971229 A CN110971229 A CN 110971229A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
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- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
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Abstract
The invention discloses an electronic signal calibration system, which comprises a voltage-stabilizing input module and a feedback regulation module, wherein the voltage-stabilizing input module is connected with an electronic analog signal input port, the electronic analog signal input port is also an output port of a signal receiving module of an electronic controller, voltage stabilization is carried out by a voltage stabilizing circuit consisting of a triode Q1 and a voltage stabilizing tube D1, the feedback regulation module utilizes an amplitude modulation circuit consisting of an operational amplifier AR1, a diode D2 and a diode D3 to carry out amplitude modulation on signals, simultaneously utilizes a triode 2-a triode Q4 to form a calibration circuit, a triode Q3 and a triode Q4 to feed back and regulate the amplitude of signals output by the operational amplifier AR2, simultaneously, the triode Q2 further finely regulates the amplitude of the signals, can regulate the regulation range value of the calibration circuit by regulating the resistance value of a variable resistor RW1, and finally inputs the signals into a signal receiving port of the controller after voltage stabilization by the voltage, eliminating signal distortion.
Description
Technical Field
The invention relates to the technical field of signal calibration, in particular to an electronic signal calibration system.
Background
At present, low-voltage electronic equipment is widely applied, a signal output by a signal receiver in a control terminal is distorted, and a controller cannot obtain a correct analysis result according to the signal, so that signal distortion needs to be corrected and eliminated, the reliability of an integrated circuit of an electronic controller is convenient to improve, and particularly, the requirement on the integrated circuit is higher and higher at present, the processed signal is more and more complicated, and the reliability of the integrated circuit of the electronic controller is more important.
Disclosure of Invention
In view of the above situation, an object of the present invention is to provide an electronic signal calibration system, which can calibrate signals at an electronic analog signal input port of a low-voltage electronic device to eliminate signal distortion.
The technical proposal for solving the problem is that the electronic signal calibration system comprises a voltage-stabilizing input module and a feedback regulation module, the voltage stabilizing input module is connected with an electronic analog signal input port, namely an output port of the electronic controller signal receiving module, and utilizes a voltage stabilizing circuit consisting of a triode Q1 and a voltage stabilizing tube D1 to stabilize the voltage, the feedback regulation module utilizes an operational amplifier AR1, a diode D2 and a diode D3 to form an amplitude modulation circuit to modulate the amplitude of signals, meanwhile, a triode 2-a triode Q4 is used to form a calibration circuit, a triode Q3 and a triode Q4 feed back and adjust the amplitude of the output signal of the operational amplifier AR2, meanwhile, the triode Q2 further finely adjusts the amplitude of the signal, the adjusting range value of the calibration circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, and finally the calibration circuit is stabilized by the voltage stabilizing tube D4 and then input into a signal receiving port of the controller;
the feedback regulation module comprises an operational amplifier AR1, wherein the non-inverting input terminal of the operational amplifier AR1 is connected with the anode of a diode D2 and one end of a capacitor C6, the inverting input terminal of the operational amplifier AR1 is connected with one end of a resistor R3 and one end of a resistor R11, the other end of the resistor R11 is grounded, the output terminal of the operational amplifier AR 11 is connected with the cathode of the diode D11, the cathode of the diode D11 and the other end of the capacitor C11, the collector of a transistor Q11 and one end of the resistor R11, the other end of the resistor R11 is connected with the non-inverting input terminal of the operational amplifier AR 11, the base of the transistor Q11 is connected with the output terminal of the operational amplifier AR 11 and the base of the transistor Q11, the emitter of the transistor Q11 is connected with one end of the resistor R11, the other end of the resistor R11 is connected with the contact 2 of a variable resistor RW 11, the other end of the resistor R11 is grounded, the anode of the diode D11 is connected with the non-inverting input terminal of the operational amplifier AR 11, the output end of the operational amplifier AR2 is connected with the other end of the resistor R8, the base of the triode Q3 and the contact 1 of the variable resistor RW1, the emitter of the triode Q3 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the inverting input end of the operational amplifier AR3 and one end of the resistor R6, the other end of the resistor R6 is grounded, the contact 3 of the variable resistor RW1 is connected with the collector of the triode Q4 and one end of the resistor R10, the emitter of the triode Q4 is connected with the other end of the resistor R11, one end of the resistor R12 and the collector of the triode Q3, the other end of the resistor R12 is grounded, the other end of the resistor R10 is connected with one end of the resistor R13 and the negative electrode of the regulator D4, the positive electrode of the regulator D4 is grounded.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. an amplitude modulation circuit consisting of the operational amplifier AR1, the diode D2 and the diode D3 is used for modulating the amplitude of signals, the diode D2 and the diode D3 are connected in a common cathode mode, signals at two ends of the capacitor C6 are limited, spike signals are removed, meanwhile, the triode Q3 and the triode Q4 are used for feeding back and adjusting the amplitude of signals output by the operational amplifier AR2, and the operational amplifier AR2 follows the signals to play a role of synchronizing signals;
2. the triode Q3 detects the potential difference of the triode Q4 and the amplifier AR2, detects abnormal signals, if the signals are abnormal, the triode Q3 is conducted and fed back to the inverting input end of the amplifier AR3 to play a role in eliminating distortion signals, the amplitude of the signals is further finely adjusted by the triode Q2, the accuracy of the signals is ensured, the adjusting range value of the calibration circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, the reliability of the circuit is enhanced, and finally the signals are input into a signal receiving port of the controller after being stabilized by the voltage stabilizing tube D4, and the accuracy of the signals input into a signal receiving port of the controller is ensured.
Drawings
FIG. 1 is a schematic circuit diagram of an electronic signal calibration system according to the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
In the first embodiment, an electronic signal calibration system includes a voltage-stabilizing input module and a feedback adjustment module, the voltage-stabilizing input module is connected with an electronic analog signal input port, the electronic analog signal input port is also an output port of a signal receiving module of an electronic controller, voltage stabilization is performed by using a voltage stabilizing circuit composed of a triode Q1 and a voltage stabilizing tube D1, the feedback adjustment module uses an amplitude modulation circuit composed of an operational amplifier AR1, a diode D2 and a diode D3 to modulate the amplitude of a signal, and simultaneously uses a triode 2-a triode Q4 to form a calibration circuit, a triode Q3 and a triode Q4 to feedback and adjust the amplitude of the signal output by the operational amplifier AR2, and a triode Q2 further trims the amplitude of the signal, and adjusts the resistance value of a variable resistor 1 to adjust the adjustment range value of the calibration circuit, and finally inputs the signal into a signal receiving;
the feedback regulation module utilizes an operational amplifier AR1, a diode D2 and a diode D3 to form an amplitude modulation circuit to modulate signals, utilizes a diode D2 and a diode D3 to be connected with a common cathode, limits signals at two ends of a capacitor C6, removes peak signals, simultaneously utilizes a triode 2-a triode Q4 to form a calibration circuit, utilizes a triode Q3 and a triode Q4 to feed back and regulate the amplitude of signals output by the operational amplifier AR2, utilizes an operational amplifier AR2 to follow the signals to play a role of synchronizing the signals, simultaneously utilizes an operational amplifier AR3 to amplify the signals and then provides base signals for a triode Q2 and a triode Q4, utilizes a triode Q4 to amplify the signal voltage, simultaneously utilizes a triode Q3 to detect the potential difference between the triode Q4 and the operational amplifier AR2 to detect abnormal signals, if the signals are abnormal, the triode Q42 is conducted and then fed back to an inverting input end of the operational amplifier AR3 to play a role of eliminating distortion signals and further, the accuracy of signals is guaranteed, the adjusting range value of the calibration circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, the reliability of the circuit is enhanced, and the signals are input into a signal receiving port of the controller after being stabilized by the voltage stabilizing tube D4, so that the accuracy of the signals input into the signal receiving port of the controller is guaranteed;
the feedback regulation module has a specific structure that a non-inverting input end of an operational amplifier AR1 is connected with an anode of a diode D2 and one end of a capacitor C6, an inverting input end of an operational amplifier AR1 is connected with one ends of a resistor R3 and a resistor R11, the other end of the resistor R3 is grounded, an output end of the operational amplifier AR1 is connected with a cathode of a diode D2, a cathode of the diode D3 and the other end of the capacitor C3, a collector of a transistor Q3 and one end of a resistor R3, the other end of the resistor R3 is connected with a non-inverting input end of the operational amplifier AR3, a base of the transistor Q3 is connected with an output end of the operational amplifier AR3 and a base of the transistor Q3, an emitter of the transistor Q3 is connected with one end of the resistor R3, the other end of the resistor R3 and one end of the resistor R3, a contact 2 of a variable resistor R3, the other end of the resistor R3 is grounded, an anode of the diode D3 is connected with the non-inverting input end of the operational, the output end of the operational amplifier AR2 is connected with the other end of the resistor R8, the base of the triode Q3 and the contact 1 of the variable resistor RW1, the emitter of the triode Q3 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the inverting input end of the operational amplifier AR3 and one end of the resistor R6, the other end of the resistor R6 is grounded, the contact 3 of the variable resistor RW1 is connected with the collector of the triode Q4 and one end of the resistor R10, the emitter of the triode Q4 is connected with the other end of the resistor R11, one end of the resistor R12 and the collector of the triode Q3, the other end of the resistor R12 is grounded, the other end of the resistor R10 is connected with one end of the resistor R13 and the negative electrode of the regulator D4, the positive electrode of the regulator D4 is grounded.
In a second embodiment, on the basis of the first embodiment, the voltage stabilizing input module is connected to an electronic analog signal input port, the electronic analog signal input port is also an output port of the signal receiving module of the electronic controller, a voltage stabilizing circuit composed of a triode Q1 and a voltage stabilizing tube D1 is used for stabilizing voltage, a collector of the triode Q1 is connected to one end of a resistor R1 and one end of a resistor R2, the other end of the resistor R1 is connected to the electronic analog signal input port, a base of the triode Q1 is connected to a negative electrode of the voltage stabilizing tube D1 and the other end of the resistor R2, a positive electrode of the voltage stabilizing tube D1 is grounded, and an emitter of the triode Q1 is connected to a non.
When the electronic signal calibration system is used specifically, the electronic signal calibration system comprises a voltage-stabilizing input module and a feedback regulation module, wherein the voltage-stabilizing input module is connected with an electronic analog signal input port, the electronic analog signal input port is also an output port of a signal receiving module of an electronic controller, voltage stabilization is carried out by using a voltage stabilizing circuit consisting of a triode Q1 and a voltage stabilizing tube D1, the feedback regulation module uses an amplitude modulation circuit consisting of an operational amplifier AR1, a diode D2 and a diode D3 to carry out amplitude modulation on signals, uses a common cathode of a diode D2 and a diode D3 to be connected, limits the signals at two ends of a capacitor C6, removes peak signals, uses a triode 2-triode Q4 to form a calibration circuit, uses a triode Q3 and a triode Q4 to feedback regulate the amplitude of the output signal of the operational amplifier AR2, the operational amplifier AR2 follows the signals to play a role of synchronizing signals, and simultaneously, The triode Q4 provides a base signal, the triode Q4 amplifies the signal voltage, the triode Q3 detects the potential difference of the triode Q4 and the operational amplifier AR2 and detects an abnormal signal, if the signal is abnormal, the triode Q3 is conducted and fed back to the reverse-phase input end of the operational amplifier AR3 to play a role in eliminating a distortion signal, the amplitude of the signal is further finely adjusted by the triode Q2 to ensure the accuracy of the signal, the adjustment range value of the calibration circuit can be adjusted by adjusting the resistance value of the variable resistor RW1 to enhance the reliability of the circuit, and finally the signal is stabilized by the voltage stabilizing tube D4 and then input into a signal receiving port of the controller to ensure the accuracy of the signal receiving port of the input controller.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (2)
1. An electronic signal calibration system comprises a voltage-stabilizing input module and a feedback regulation module, and is characterized in that the voltage-stabilizing input module is connected with an electronic analog signal input port, namely an output port of a signal receiving module of an electronic controller, a voltage stabilizing circuit consisting of a triode Q1 and a voltage stabilizing tube D1 is used for stabilizing voltage, the feedback regulation module utilizes an operational amplifier AR1, a diode D2 and a diode D3 to form an amplitude modulation circuit to modulate the amplitude of signals, meanwhile, a triode 2-a triode Q4 is used to form a calibration circuit, a triode Q3 and a triode Q4 feed back and adjust the amplitude of the output signal of the operational amplifier AR2, meanwhile, the triode Q2 further finely adjusts the amplitude of the signal, the adjusting range value of the calibration circuit can be adjusted by adjusting the resistance value of the variable resistor RW1, and finally the calibration circuit is stabilized by the voltage stabilizing tube D4 and then input into a signal receiving port of the controller;
the feedback regulation module comprises an operational amplifier AR1, wherein the non-inverting input terminal of the operational amplifier AR1 is connected with the anode of a diode D2 and one end of a capacitor C6, the inverting input terminal of the operational amplifier AR1 is connected with one end of a resistor R3 and one end of a resistor R11, the other end of the resistor R11 is grounded, the output terminal of the operational amplifier AR 11 is connected with the cathode of the diode D11, the cathode of the diode D11 and the other end of the capacitor C11, the collector of a transistor Q11 and one end of the resistor R11, the other end of the resistor R11 is connected with the non-inverting input terminal of the operational amplifier AR 11, the base of the transistor Q11 is connected with the output terminal of the operational amplifier AR 11 and the base of the transistor Q11, the emitter of the transistor Q11 is connected with one end of the resistor R11, the other end of the resistor R11 is connected with the contact 2 of a variable resistor RW 11, the other end of the resistor R11 is grounded, the anode of the diode D11 is connected with the non-inverting input terminal of the operational amplifier AR 11, the output end of the operational amplifier AR2 is connected with the other end of the resistor R8, the base of the triode Q3 and the contact 1 of the variable resistor RW1, the emitter of the triode Q3 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the inverting input end of the operational amplifier AR3 and one end of the resistor R6, the other end of the resistor R6 is grounded, the contact 3 of the variable resistor RW1 is connected with the collector of the triode Q4 and one end of the resistor R10, the emitter of the triode Q4 is connected with the other end of the resistor R11, one end of the resistor R12 and the collector of the triode Q3, the other end of the resistor R12 is grounded, the other end of the resistor R10 is connected with one end of the resistor R13 and the negative electrode of the regulator D4, the positive electrode of the regulator D4 is grounded.
2. The electronic signal calibration system of claim 1, wherein the regulated input module comprises a transistor Q1, the collector of the transistor Q1 is connected to one end of a resistor R1 and a resistor R2, the other end of the resistor R1 is connected to the electronic analog signal input port, the base of the transistor Q1 is connected to the negative electrode of a regulator D1 and the other end of the resistor R2, the positive electrode of the regulator D1 is grounded, and the emitter of the transistor Q1 is connected to the non-inverting input terminal of the amplifier AR 1.
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