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Signal conditioning circuit of electronic product control device

A technology for control devices and electronic products, applied in electrical digital data processing, instruments, etc., can solve the problems of signal amplitude variation, signal instability, affecting user experience, etc., to achieve the effect of adjusting signal amplitude and improving anti-interference.

Active Publication Date: 2018-07-31
重庆芯启程人工智能芯片技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, various electronic products have developed accordingly. Electronic products have now become an indispensable part of people's lives and have brought great convenience to people's lives. The signal conditioning circuit of the electronic product control device is an electronic It is a relatively important component in the use of products. Among them, the signal in the signal transmission channel of the signal conditioning circuit of the low-voltage electronic product control device is prone to instability, and is subject to electromagnetic interference from other similar electronic products, which can easily cause changes in signal amplitude, resulting in signal distortion. Disturbance may even cause electronic products to generate error messages, which not only affects the service life of low-voltage electronic products, but also seriously affects the user experience

Method used

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  • Signal conditioning circuit of electronic product control device
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, the signal adjustment circuit of the electronic product control device includes a signal receiving circuit, a differential feedback circuit and a voltage stabilization output circuit, the signal receiving circuit receives the signal at the input end of the signal transmission channel in the signal adjustment circuit of the electronic product control device, the The differential feedback circuit is divided into two channels to receive the signal output from the receiving circuit. One channel is limited by the sliding rheostat RW2 and then input to the non-inverting input terminal of the operational amplifier AR2 and the non-inverting input terminal of the operational amplifier AR3. At the same time, the power supply +10V is the operational amplifier The non-inverting input terminal of AR2 and the non-inverting input terminal of the operational amplifier AR3 provide the base potential, and the other channel is inverting and amplified by the operational amplifi...

Embodiment 2

[0015] Embodiment 2, on the basis of Embodiment 1, the signal receiving circuit receives the signal at the input end of the signal transmission channel in the signal conditioning circuit of the electronic product control device, the voltage regulator tube D1 plays the role of voltage stabilization, the inductor L1 filters, and the inductor One end of L1 is connected to the anodes of the diode D3 and the diode D2, the other end of the inductor L1 is connected to the signal output port and the cathode of the regulator D1, and the anode of the regulator D1 is grounded.

Embodiment 3

[0016] Embodiment 3, on the basis of Embodiment 1, the voltage stabilizing output circuit receives the output signal of the differential feedback circuit, uses the voltage stabilizing circuit composed of the triode Q3 and the voltage stabilizing tube D7 to stabilize the voltage, further stabilizes the signal, and designs the inductor L2 The LC circuit formed in parallel with the capacitor C1 is filtered and output to improve the anti-interference of the signal, that is, in the signal transmission channel of the signal conditioning circuit input to the electronic product control device, the collector of the transistor Q3 is connected to the other end of the resistor R7 and the resistor One end of R15, the other end of the resistor R15 is connected to the base of the transistor Q3 and the negative pole of the Zener tube D7, the positive pole of the Zener tube D7 is grounded, the emitter of the transistor Q3 is connected to one end of the inductor L2, and the other end of the induc...

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Abstract

The invention discloses a signal conditioning circuit of an electronic product control device. The signal conditioning circuit comprises a signal receiving circuit, a differential feedback circuit anda voltage stabilizing output circuit, wherein the signal receiving circuit receives a signal of an input end of a signal transmission channel in the signal conditioning circuit of the electronic product control device; the differential feedback circuit receives signals output by the signal receiving circuit in two paths; a triode Q2 is an emitting electrode and feeds back the signal; an invertedinput terminal potential of a conditioning operational amplifier AR1 plays the effects of conditioning signal amplitude and feeding back stable signals; and finally the voltage stabilizing output circuit receives the signal output by the differential feedback circuit; a voltage stabilizing circuit consisting of a triode Q3 and a voltage stabilizing tube D7 is adopted to stabilize a voltage; an LCcircuit consisting of a conductor L2 and a capacitor C1 in parallel is designed and filtered and then output, namely, the signal is input to the signal transmission channel in the signal conditioningcircuit of the electronic product control device. The signal in the signal transmission channel of the signal conditioning circuit of the electronic product control device is stabilized and the anti-interference of the signal is improved.

Description

technical field [0001] The invention relates to the technical field of signal adjustment, in particular to a signal adjustment circuit of an electronic product control device. Background technique [0002] With the development of science and technology, various electronic products have developed accordingly. Electronic products have now become an indispensable part of people's lives and have brought great convenience to people's life. The signal conditioning circuit of the electronic product control device is an electronic It is a relatively important component in the use of products. Among them, the signal in the signal transmission channel of the signal conditioning circuit of the low-voltage electronic product control device is prone to instability, and it is easily caused by electromagnetic interference from other similar electronic products. Disturbance may even cause electronic products to generate error messages, which not only affects the service life of low-voltag...

Claims

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Application Information

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IPC IPC(8): G06F13/40
CPCG06F13/4072
Inventor 王玉巧李文方郭海松付瑞玲赫帅帅
Owner 重庆芯启程人工智能芯片技术有限公司