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Method and device for interference protection of power supply

A power supply and overvoltage technology, applied in emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, circuit devices, etc., can solve the problem of high system cost, reduce total cost, improve process pressure protection, reducing the number of effects

Inactive Publication Date: 2011-06-15
SHANGQIU POWER SUPPLY ELECTRIC POWER OF HENAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the centralized power supply system is still used, in order to meet the needs of system upgrade and expansion, even for the simplest configuration system, the power board must be configured according to the maximum power consumption, which makes the system cost too high

Method used

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  • Method and device for interference protection of power supply
  • Method and device for interference protection of power supply
  • Method and device for interference protection of power supply

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] figure 1 The general structure of a base station in a cellular radio system is shown. The base station 10 comprises an antenna 11, a peripheral device 12, an antenna line 13, a master device 14 which includes the different components of the base station, such as transmit and receive blocks 14a, an antenna filter 14b, and a power supply 14c. The antenna filter 14b includes a main device connector 14d to which the antenna line 13 is connected. In the example of the present invention, peripheral device 12 is a pole top preamplifier. The operation of the base station 10 - described here only from the reception point of view - interconnects the components 11 to 14d in the following manner. After antenna 11 has received a possibly very weak transmit signal, this signal is supplied from this antenna to preamplifier 12 . The pre-amplifier 12 should b...

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Abstract

The invention discloses a method and device for interference protection of a power supply. The method for the interference protection of the power supply is adopted in a base station of a cellular wireless system; the base station comprises main equipment, peripheral equipment and an antenna circuit between the main equipment and the peripheral equipment; the main equipment at least comprises a power supply and an antenna filter; and the peripheral equipment at least comprises a rod top preamplifier. The method is characterized in that: the antenna circuit supplies a working voltage to the peripheral equipment from the main equipment of the base station, the working voltage supplied on the antenna circuit and the signal from an antenna are mutually separated in the peripheral equipment by filtering, and overvoltage formed on an antenna line is conducted to the ground through an element changing the impedance of the antenna in a voltage function manner and an impedance matching short line being connected with the element and working in a radio frequency used by the base station. The number of cables is reduced, so that a small amount of elements is needed in overvoltage protection; the overvoltage protection is improved, so that the total expense is reduced; and the method and the device are suitable for power supply of communication equipment.

Description

technical field [0001] The invention belongs to the technical field of electricity utilization, and in particular relates to a method and device for interference protection power supply. Background technique [0002] According to the characteristics of its application requirements, current communication equipment mainly adopts two power supply systems: centralized power supply system and distributed power supply system. The centralized power supply system is usually used for systems with low power consumption, and its schematic diagram can be referred to figure 1 . Although the centralized power supply system can well realize the hot backup function of the power board, it is not suitable for communication equipment that consumes a lot of power and needs to be equipped with multiple boards. From the perspective of system application flexibility, the number of single boards used by communication equipment is configured according to user requirements. For the simplest configu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04H04W88/08
Inventor 高世伟刘红梅秦三营曹海军
Owner SHANGQIU POWER SUPPLY ELECTRIC POWER OF HENAN
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