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Signal conditioning method and signal conditioning circuit

A signal conditioning circuit and signal conditioning technology, applied in the demodulation of angle modulation oscillation, amplitude modulation oscillation demodulation components, demodulation and other directions, can solve the problems of large volume and narrow linear range, and achieve strong anti-interference ability and volume. The effect of flat, micro power consumption

Pending Publication Date: 2021-05-11
FUZHOU ROCKCHIP SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices have a narrow linear range and are bulky and cannot be implemented with semiconductor integration processes

Method used

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  • Signal conditioning method and signal conditioning circuit
  • Signal conditioning method and signal conditioning circuit
  • Signal conditioning method and signal conditioning circuit

Examples

Experimental program
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Embodiment 1

[0042] like figure 1 As shown, this embodiment provides a signal conditioning circuit 100 , and the signal conditioning circuit 100 includes: a modulator 110 , an edge encoder 120 , a planar cavity isolator 130 , an edge decoder 140 and a demodulator 150 .

[0043] The signal conditioning circuit 100 in this embodiment will be described in detail below.

[0044] In this embodiment, the modulator 110 receives a transmission signal and modulates the transmission signal on the rising edge and / or the falling edge of the 1-bit digital pulse signal.

[0045] Wherein, in this embodiment, the transmission signal is an analog signal or a digital signal. In this embodiment, description is made by taking the transmission signal as an analog signal as an example.

[0046] Specifically, the modulator 110 directly converts the analog signal into a 1-bit pulse sequence signal without using a multi-bit ADC, for example, modulating the three parameters of the analog signal's amplitude, frequ...

Embodiment 2

[0074] Embodiments of the present invention also provide a signal conditioning method, such as Figure 12 As shown, the signal conditioning method includes:

[0075] Step S110, receiving a transmission signal and modulating the transmission signal on the rising edge and / or falling edge of the 1bit digital pulse signal;

[0076] Step S120, converting the rising edge and / or falling edge of the digital pulse signal output by the modulator into an impact signal;

[0077] Step S130, converting and isolating the impact signal through a planar cavity isolator to generate an isolated signal;

[0078] Step S140, converting the isolated signal into a digital pulse signal; restoring the digital pulse signal into the transmission signal and outputting the transmission signal.

[0079] Wherein, in this embodiment, the transmission signal is an analog signal or a digital signal. In this embodiment, description is made by taking the transmission signal as an analog signal as an example. ...

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Abstract

The invention provides a signal conditioning method and a signal conditioning circuit. The signal conditioning circuit comprises a modulator, an edge encoder, a planar cavity isolator, an edge decoder and a demodulator, wherein the modulator receives a transmission signal and modulates the transmission signal on an upper edge and / or a lower edge of a 1-bit digital pulse signal; the edge encoder converts the upper edge and / or the lower edge of the digital pulse signal output by the modulator into an impact signal; the planar cavity isolator converts and isolates the impact signal to generate an isolation signal; the edge decoder converts an isolation signal output by the planar cavity isolator into a digital pulse signal; and the demodulator restores the digital pulse signal output along the decoder into a transmission signal and outputs the transmission signal. According to the signal conditioning method and the signal conditioning circuit, the transmission signal is only transmitted at the upper edge and / or in the time, and the circuit is in a dormant state at other time, so that compared with the existing signal conditioning circuit, the signal conditioning circuit has the advantages of micro power consumption and strong anti-interference capability.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a signal conditioning method and a signal conditioning circuit. Background technique [0002] The existing digital signal processing technology uses ADC to quantize the analog signal into a digital signal. In order to improve the accuracy, it is necessary to encode the digital signal with 8-32 bits, and then restore it to an analog signal with a DAC after DSP processing. The whole process is relatively complicated, and the disadvantages are large power consumption and high cost. [0003] In addition, in a multi-reference point electronic system, signals need to be transmitted across an isolation wall. Traditional isolation devices are magnetic coupling transformers, high-voltage capacitors, or photoelectric conversion devices. These devices have a narrow linear range and a large volume, and cannot be realized by semiconductor integration processes. Contents of the ...

Claims

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Application Information

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IPC IPC(8): H03C1/02H03C3/02H03D1/02H03D3/00
CPCH03C1/02H03C3/02H03D1/02H03D3/001
Inventor 王新成
Owner FUZHOU ROCKCHIP SEMICON