Category:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
0
1
2
3
4
5
6
7
8
9
Position:IcFull.com » IC Electronic information » Category: T

IC Electronic information

Three-line UPS power supply

In Electronic Infomation Category: T | on April 14,2011

UPS power back-up according to their works can be divided into type, on-line and MAX849ESE datasheet and on-line interactive three.

(1) on-line UPS power supply

-Line UPS power supply: This UPS has its inverter power supply is active, it first alternating current through the external circuit into DC, and MAX849ESE price and through high-quality inverter to convert DC to high-quality sine wave AC output to the computer. On-line UPS power supply situation in the main function is the regulator and MAX849ESE suppliers and to protect against electrical interference; during power outages, use alternate DC power supply (battery) to the inverter. Since the inverter has been at work, so there is no problem switching time for the power, there are strict requirements of the occasion. On-line UPS power back-up style is different from the one of the major advantages of continuous supply long, usually several hours, there are large than ten hours, and its main function is to allow you to power outages can work as usual Obviously, because of its special features, the price was significantly more expensive by a lot. Comparison of this on-line UPS for computer, communications, banking, securities, telecommunications, medical, industrial control and other industries, because these areas generally does not allow the computer power phenomenon.

(2) line interactive UPS

Line interactive UPS Power: This is an intelligent UPS, the so-called line interactive UPS, is normal in the input mains, UPS inverter work in reverse (ie, rectification work status), Charging the battery pack; in the city, immediately turn the inverter abnormal working conditions inverter, the battery pack power into alternating current output, line interactive UPS also has conversion time. Compared with the back-type UPS, line interactive UPS power protection stronger, better inverter output voltage waveform, usually a sine wave, and its biggest advantage is a strong software functionality, you can easily access, the UPS of the remote control and intelligent management. Can automatically detect the external input voltage is in the normal range, if any deviation by the boost or buck voltage regulator circuit to provide relatively stable sine wave output voltage. And it can be through the data between the computer interface (eg RS-232 serial port) for data communication, and by monitoring software, users can monitor the computer screen directly from the power supply and UPS status, simplified, easy management, and enhance the computer system reliability. The focus of the reserve type UPS UPS UPS with high efficiency and power-line advantages of high quality, but its stability is not a very good frequency characteristics can not do often delay for UPS.

(3) back-type UPS UPS power back-up type

: usually in the battery charge state, the inverter in the power outage to switch to a working state of emergency, the battery provides the DC into AC output stable, so back-style off-line UPS, also known as UPS . UPS power back-type advantages are: high efficiency, low noise, relatively inexpensive, mainly for electricity fluctuate little less demanding on the quality of power supply situation, more suitable for home use. UPS, however this time there is a switch problem, so the key is not suitable for use in place of the power supply can not be interrupted. But in fact this switching time is very short, usually ranging from 2 to 10 milliseconds, and the computer switched itself off when power supply can be maintained at around 10 milliseconds, so the personal computer system because the switching time is generally not and problems. UPS backup-type power supply usually lasts only a few minutes to several minutes, mainly to allow you time to back up data, and to end the work at hand, its price is lower. Not too critical of computer applications, such as personal home users, you can type with a low-power backup UPS.

MAX849ESE datasheetMAX849ESE suppliersMAX849ESE Price

All right reserved:icfull.com © 2010-2016 Certificate