Communication circuit of power supply protector

Abstract

The invention relates to a communication circuit of a power supply protector, which is provided with a single chip microcomputer, a communication converting chip, a single-chip high-speed optical coupler and a double-path high-speed optical coupler, wherein the single-chip high-speed optical coupler and the double-path high-speed optical coupler are arranged between the single-chip machine and the communication converting chip, two pins of the single-chip machine are connected with the single-chip high-speed optical coupler and the double-path high-speed optical coupler by connecting with a control signal pull-up resistor in series, and the single-chip high-speed optical coupler and the double-path high-speed optical coupler are connected to a chip power supply by connecting with a level signal pull-up resistor in series. As optical coupler isolation is added in a communication process of the single-chip machine and a computer, the communication circuit can effectively resist outside interference, thereby improving the stability of signal communication.

Description

Technical field: [0001] The invention relates to a communication circuit of a power protector. Background technique: [0002] When the power supply intelligent protector is applied in the field of communication base stations and video surveillance, since this application environment is often in the suburbs and outdoors, when it is necessary to understand the internal data and historical records of the controller, it needs to have communication with the computer and remote sensing, remote signaling, and remote control. and other functions. However, the current intelligent protectors for power supply are susceptible to interference from the outside world, thus affecting the stability of signal communication. Invention content: [0003] In order to solve the above technical problems, the present invention provides a communication circuit of a power protector. [0004] The technical solution adopted by the present invention to solve the technical problem is: a communication ...

AI Technical Summary

Problems solved by technology

However, the current intelligent power protectors are very susceptible to interference from the outside world, which affects the stability of signal communication

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