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A two-wire multiplexing circuit

A multiplexing circuit, two-wire technology, applied in the field of communication circuits, can solve the problems of communication interference, insufficient utilization of circuit resources, inability to match, etc.

Active Publication Date: 2022-06-17
云谷技术(珠海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many forms of communication circuits, one of which is a fully isolated communication scheme, which uses a full-duplex communication method, and the matching communication protocol and standard cannot be compared with the currently widely used bus-type protocol and standard match
In addition, in actual use, the communication line between the main control board and the power board was too long, which caused the communication to be interfered, and the isolation effect was not ideal.
The other is a bus-type communication circuit, which can mount multiple computer boards, but due to the mounting of multiple circuit boards, the demand for its I / O interface will increase, so that the circuit resources cannot be fully utilized, so it is necessary to A more concise and convenient communication circuit

Method used

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Embodiment

[0032] see figure 1 , figure 1 Shown is a two-wire multiplexing circuit provided by the embodiment of the present application, including a magnetic coupling isolation circuit 1, a first communication circuit 2 and a second communication circuit 3, and the output end of the magnetic coupling isolation circuit 1 is connected to the first communication circuit 2. The input end of the first communication circuit 2 is connected to the input end of the second communication circuit 3 .

[0033] In some embodiments of the present invention, an isolation circuit is provided in order to prevent the current from directly flowing from one area to another area, the purpose of which is to deal with the ground potential difference between the communication subsystems and improve the noise immunity, so as to ensure the signal Safe and reliable in conduction at different voltage levels. In addition, the purpose of setting the first communication circuit 2 and the second communication circuit...

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Abstract

The invention provides a two-wire multiplexing circuit, which relates to the technical field of communication circuits. It includes a magnetic coupling isolation circuit, a first communication circuit and a second communication circuit, the output end of the magnetic coupling isolation circuit is connected to the input end of the first communication circuit, and the output end of the first communication circuit is connected to the input end of the second communication circuit. There is no need to send or receive control conversion signal lines, which saves output or input interfaces, saves costs, and improves data transmission efficiency.

Description

technical field [0001] The present invention relates to the technical field of communication circuits, in particular to a two-wire multiplexing circuit. Background technique [0002] There are many forms of communication circuits, one of which is a fully isolated communication scheme, whose communication mode adopts a full-duplex mode, and the matching communication protocols and standards cannot be compared with the currently widely used bus-based protocols and protocols. match the standard. In addition, in actual use, there have been cases where the communication line between the main control board and the power board is too long, causing the communication to be disturbed, and the isolation effect is not ideal. The other is a bus-type communication circuit, which can mount multiple computer boards. However, due to mounting multiple circuit boards, the demand for its I / O interface will increase, so that circuit resources cannot be fully utilized. Therefore, it is necessary...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B1/74H04B15/00
CPCH04B1/40H04B1/74H04B15/00
Inventor 舒亿兵于丽娇陈治国齐斌
Owner 云谷技术(珠海)有限公司
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