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High-efficiency two-wire system power supply modulation bus and realization method thereof

A technology of power modulation and implementation method, which is applied in the direction of distribution line transmission system, etc., and can solve the problems of low cut-off frequency of low-pass filter and unfavorable original state of data information, etc.

Inactive Publication Date: 2011-09-28
YIXING LAIDEMAN TECH
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Problems solved by technology

[0004] The cut-off frequency of the low-pass filter is very low, and a large number of signals, including communication signals and interference signals, are filtered out, which makes the output voltage value of the negative terminal relatively stable, which is not conducive to expressing the original state of the data information

Method used

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  • High-efficiency two-wire system power supply modulation bus and realization method thereof
  • High-efficiency two-wire system power supply modulation bus and realization method thereof
  • High-efficiency two-wire system power supply modulation bus and realization method thereof

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Embodiment Construction

[0051] Explanation of the number labels in the figure:

[0052] 100-high-efficiency two-wire power supply modulation bus; 200-bus A, 210-bus B; 300-sampling circuit, 310-sampling voltage divider resistor, 320-voltage sampling point; 400-hysteresis feedback circuit, 410-hysteresis Adjusting resistor, 420-hysteretic feedback resistor; 500-low-pass filter circuit, 510-low-pass filter resistor, 520-low-pass filter capacitor; 600-signal comparator.

[0053] ginseng figure 2 As shown, the high-efficiency two-wire power modulation bus 100 described in the present invention has the advantages of fast output transmission speed and low bit error rate. It is realized in this way, the modulation bus includes two buses for supplying power and modulation signals, as an example, they can be bus A200 and bus B210 respectively, and the modulation signal comes from a signal transmitter connected to the bus. In the present invention, as an important feature, the modulation bus also includes: ...

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Abstract

The invention provides a high-efficiency two-wire system power supply modulation bus and a realization method thereof, relating to the electrical and circuit field. The modulation bus comprises two buses providing power supply and modulation signal, a sampling circuit, a hysteresis reactive circuit, a low pass filter circuit and a signal comparator. By using the hysteresis reactive circuit in the signal comparator, through increasing hysteresis feedback voltage, the following effect of the hysteresis reactive circuit is realized, thus the power supply bus have strong anti-interference capability, low rate of error code and high signal transmission rate in the realization of data signal transmission.

Description

technical field [0001] The invention belongs to the field of electronics and circuits. Background technique [0002] Utilizing a set of power lines to transmit power and digital communication signals at the same time is a very efficient way to set up circuits. But at present, the application of this technology is not very extensive. The main reason is that the current technology has many defects, mainly in poor anti-interference ability, high bit error rate, and low transmission rate. [0003] ginseng figure 1 As shown, here is a schematic structural diagram of the existing bus carrier demodulation circuit. It includes two bus sampling resistors, and the positive terminal of the comparator is connected to the sampling voltage of the bus, and the negative terminal is connected to the sampling voltage processed by the low-pass filter. [0004] The cut-off frequency of the low-pass filter is very low, and a large number of signals, including communication signals and interfe...

Claims

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Application Information

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IPC IPC(8): H04B3/54
Inventor 王吉鹏
Owner YIXING LAIDEMAN TECH
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