Data signal distortion adjusting circuit

A technology for adjusting circuits and data signals, applied in the field of circuits, can solve problems such as signal harmonics, abnormal signal frequency, large error of low-frequency data signals, etc., to achieve the effect of ensuring consistency, high reliability, and preventing signal crossover distortion

Inactive Publication Date: 2019-11-12
ZHENGZHOU INST OF TECH
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Problems solved by technology

[0002] At present, computer equipment mainly includes a control terminal, a signal transmission module, a data processing module and a cloud. The data processing module processes and modulates the data information, and sends it to the cloud through the signal transmission module. The cloud and the control terminal exchange information through the signal transmission module. Since the signal in the signal transmission channel for exchanging

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  • Data signal distortion adjusting circuit

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[0009] Regarding the aforementioned and other technical contents, features and effects of the present invention, refer to the appended figure 1 It will be apparent from the detailed description of the embodiments. The structural contents mentioned in the following embodiments are all based on the accompanying drawings of the description.

[0010] A data signal distortion adjustment circuit, including a frequency acquisition circuit, a feedback calibration circuit, and a voltage-stabilizing output circuit. The feedback calibration circuit uses an operational amplifier AR1 and a capacitor C2 to form a noise reduction circuit, and the capacitor C2 is used to filter out low-frequency signal noise and reduce noise. The output signal of the noise circuit uses the operational amplifier AR2, diode D2, and diode D3 to form a detection circuit to filter out the disturbance signal in the signal, and the operational amplifier AR2 and operational amplifier AR1 form a differential circuit t...

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Abstract

The invention discloses a data signal distortion adjusting circuit. The circuit comprises a frequency acquisition circuit, a feedback calibration circuit and a voltage stabilization output circuit, wherein the frequency acquisition circuit acquires a low-frequency data signal received by a controller in the computer equipment; the feedback calibration circuit uses an operational amplifier AR1 anda capacitor C2 to form a noise reduction circuit, low frequency signal noise is filtered, one path of an output signal of the noise reduction circuit uses an operational amplifier AR2, a diode D2 anda diode D3 to form a detection circuit to filter a disturbance signal in the signal; in the second path, a triode Q4 and a triode Q5 form a push-pull circuit to prevent signal crossover distortion; and finally, the operational amplifier AR3 adds the two paths of signals and inputs the signals into the voltage stabilization output circuit. The voltage stabilization output circuit uses an operational amplifier AR4, an operational amplifier AR5, a capacitor C4 and a capacitor C5 to form a filter circuit to further stabilize signal potential output, and error correction can be carried out on low-frequency data signals received by a single-chip microcomputer port in a controller in computer equipment.

Description

technical field [0001] The invention relates to the field of circuit technology, in particular to a data signal distortion adjustment circuit. Background technique [0002] At present, computer equipment mainly includes a control terminal, a signal transmission module, a data processing module, and a cloud. The data processing module processes and modulates data information, and sends it to the cloud through the signal transmission module. The cloud and the control terminal exchange information through the signal transmission module. Since the signal in the signal transmission channel for exchanging information between the cloud and the control terminal is prone to interference from power plants or urban high-frequency signal towers during long-distance transmission, when the signal passes through such equipment during transmission, it will The frequency of the signal is abnormal, resulting in harmonics in the signal, which in turn leads to a large error in the low-frequency...

Claims

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Application Information

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IPC IPC(8): H03H11/46H03F1/38H03F3/68
CPCH03F1/38H03F3/68H03H11/46
Inventor 焦合军李晶赵群力
Owner ZHENGZHOU INST OF TECH
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