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5. POWER SUPPLY & INVERTER BOARD
5.1 Description
The Power supply and Inverter board is designed for the display control board and the
lighting up of 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 265VAC power supply.
5.2.2 Input Frequency Range
Input power frequency range shall be from 47.5 to 63Hz 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%
±5%
+5Vdc
+12Vdc
+25%/-5%
48Watt max.
1.5KVAC or 2.2KVDC for 1 minute.
70% min. @ 115V/230VAC, maximum load.
Output Current
-
MIN
0A
0A
0A
< 0.25mA/100VAC, <3.5mA/230VAC
24
Volt Tolerance
MAX
4.8~5.2Vdc
1.0A
(for Audio)
1.5A
4.8~5.2V dc
2.2A
11.4~15Vdc
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