< p> UPS
in the computer system and network application has two main functions: one is the emergency use, to prevent the sudden power failure, affect the normal work, damage to the computer;
2 is to eliminate surge, for grid instantaneous high pressure, low, instantaneous electric.
Noise, frequency deviation, such as 'power pollution', improve power quality, for the computer system to provide the high quality of power supply.
< / p> < p> 1。
UPS uninterruptible power supply
< / p> < p> UPS
in Chinese means 'uninterrupted power supply', is the abbreviation of 'uninterrupted power supply' in English, it can protect the computer system after a power outage continue to work after a period of time, enables users to emergency inventory, make you won't work or loss of data due to power supply.
In computer system and network applications, it plays two main functions: one is the emergency use, to prevent the sudden power failure, affect the normal work, damage to the computer;
2 is eliminate the instantaneous high pressure surge, power supply, instantaneous low voltage, electrical, noise, etc.
Frequency offset, such as 'power pollution', improve power quality, for the computer system to provide the high quality of power supply.
< / p> < p> according to the basic principle of application of UPS is a kind of energy storage device, inverter as the main parts, stable voltage output power protection device.
It is mainly composed of rectifier, accumulator, inverter and the static switch.
< / p> < p> 1)
: rectifier rectifier is a kind of rectifying device, it is only the AC (
Converted into dc (
It has two main functions: one, the AC (
Converted into dc (
, the power supply load after filtering, or provide inverter;
Second, to provide battery charging voltage.
As a result, it also ACTS as a charger,
< / p> < p> 2)
UPS battery: the battery is used to store electrical energy device.
It by multiple battery connection, its capacity to maintain the discharge time (
The power supply)
Main function is: 1 when the electricity, electrical energy into chemical energy and stored in the battery.
When the municipal power outages, chemical energy can be converted into electrical energy, in order to provide inverter or load;
< / p> < p> 3)
Inverter: pop, inverter is a kind of dc (
Convert communication (
It consists of inverter bridge, control logic and filter circuit.
< / p> < p> 4)
Static switch: static switch is also known as static switch, it is a kind of non-contact switch, is to use two thyristor (
A reverse parallel communication switch, switch controlled by the logic controller and open and close.
It is divided into two categories: conversion and transformation.
Two switch is mainly used in power system, its function is to achieve from one direction to another switch.
Model switch is mainly used for parallel inverter and municipal power or more inverters.
< / p> < p> at present, the mainstream manufacturers have UPS APC, mountain, etc. , all of which provide different levels of UPS, to meet the needs of different user groups.
< / p> < p> in principle, UPS is an integrated digital and analog circuit, inverter automatic control and maintenance of the storage devices of power electronic devices.
< / p> < p> in terms of function, UPS can effectively purify the municipal power when the power abnormal.
You can also during sudden power outage to your computer and other equipment power supply, so you have plenty of time to deal with it.
< / p> < p> tell from the purpose, with the coming of information society, UPS in information collection, transmission, processing, storage and so on each link, the application of more and more widely, the importance of information also increased with the increase of the importance of the application.
< / p> < p> what kind of UPS?
< / p> < p> UPS is divided into three types: backup, online and online.
< / p> < p> which we commonly used is UPS backup type, such as pick series with SD series, it has the power automatic voltage regulator
, UPS is used to protect the basic and important function, although generally have about 10 milliseconds conversion time, communication (
Is a square wave inverter output rather than the sine wave, but because of the advantages of simple structure, low cost, high reliability, therefore widely used in computers and peripherals, POS, and other fields;
< / p> < p> online UPS is complicated in structure, performance is perfect, and can solve the problem of all power, such as cross PS series, its outstanding characteristic is to be able to continue to zero interrupt pure sine wave output communication (
To solve all the electricity peak, surge, etc.
Frequency drift problems, need more investment, because it is usually applied to the key equipment and network center, in order to meet the needs of the environment.
< / p> < p> < / p>
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