Strong electricity overlapping protection device for communication power

Abstract

The invention discloses a strong electricity overlapping protection device for communication power, which mainly comprises a sampling unit, a photoinduced protective circuit, a main circuit control unit and an alarming unit, wherein the sampling unit mainly comprises four diodes, namely D34, D35, D36 and D37, and an optical coupler integrated module PC 817; the photoinduced protective circuit comprises an optical coupler integrated module PC 817, triodes Q1 and Q21 and a field-effect transistor Q14; the circuit control unit adopts an SG 3525 chip; and the alarming unit adopts an audible and visual alarm structure and mainly comprises diodes D 38 and D16 as well as a light emitting diode U12A and a buzzer BELL. The protection device has the advantages of reasonable structural design, low cost and fast response, and can effectively avoid strong electricity overlapping of the communication power source so as to ensure safe and reliable operation of a movable base station power supply system.

Description

technical field [0001] The invention relates to a remote power supply system for a mobile communication power supply, in particular to a strong current lap protection device for a communication power supply, which belongs to the technical field of mobile special DC power supply protection. Background technique [0002] The remote power supply system for mobile communication equipment is a new type of power supply product that appears in order to improve the power supply quality of the system because the existing mobile base station power supply system cannot solve the power supply problem of communication equipment. [0003] The remote power supply system of the mobile base station is composed of central equipment and remote equipment, which provides remote power supply for communication equipment and replaces mains power or other power supply methods. Generally, a DC voltage of about 360V is output from the computer room, and is transmitted to the communication equipment th...

AI Technical Summary

Problems solved by technology

[0006] Although the mobile communication power supply has many advantages and characteristics mentioned above, if the mains power line is accidentally bonded to the communication power supply line system, including the casing, under certain circumstances, it will cause serious consequences to the mobile communication equipment, even danger to life and property

However, an effective high-voltage lap protection device for communication power supply has not been found in the prior art. Therefore, developing a high-voltage lap protection device for communication power supply is essential to ensure the safe and reliable operation of the mobile base station power supply system. , it is very important to protect the safety of life

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