Acer AM778 Handmatig - Pagina 28

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5. POWER SUPPLY & INVERTER BOARD

5.1 Description

The Power supply and Inverter board is designed for Display control board and lighting up
the back-lights of LCD module.

5.2 Power supply ( AC to DC section)

5.2.1
input Voltage Range
The monitor shall operate within specification over the range of 90 to 265 VAC power supply.
5.2.2
Input Frequency Range
Input power frequency range shall be from 47.5 to 63 Hz over the specified input
voltage range.
5.2.3
Quick specification review
•
Input current
•
Inrush current @ cold start
•
Output
Output Volt
•
Total output power:
•
Withstanding voltage :
•
Leakage current :
•
Efficiency :
1.2A (max) at 90VAC input and full load ,
0.6A (max) at 264 VAC input and full load.
30A(0-peak)@ 110Vac ,50A(0-peak) @ 220Vac
(measured when switched off for at least 10 mins.)
Tolerance
+5Vdc
±5%
+5Vdc
±5%
+12Vdc
±5%
Output Current
-
MIN
0A
0.05A
0A
48 Watt max.
1.5Kvac or 2.2KVdc for 1 minute.
< 0.25mA/100Vac , <3.5mA/230Vac
80% min. @115V/230VAC, maximum load.
28
Volt Tolerance
MAX
1.0A
4.8~5.2V dc
1.5A
4.8~5.2V dc
2.2A
11.4~12.6Vdc