Adlink cBP-3204[R] Manual do Utilizador descarregar pdf (Página 34)

24 • Power Supply Unit

3.3 APS-925AX: 280 ATX Power Supply

3.3.1 Introductions

The APS-925AX switching power supply is ideal for use in ATX computers,

workstations or equivalent systems. This power supply can be installed with

the cPCI-PSF as a 3U CompactPCI power supply module.

3.3.2 Specifications

u AC Input Characteristics

AC Input voltage is switching automatically according to AC input

voltage. The acceptable input voltage range is as following table.

Voltage Frequency

Minimum

Maximum

Input Current

115 VAC

47 ~ 63Hz

90 VAC

130 VAC

8.0A (300W)

230 VAC

47 ~ 63Hz

180 VAC

260 VAC

4.0A (300W)

u DC Output Characteristics

Voltage +5V +3.3V

+12V -5V -12V 5VSB

Max. Load 30A 15A 15A 1.0A 1.0A 1.2A

Rated Load 25A 8A 10A 0.5A 0.5A 0.72A

Min. Load 2A 0 0.1A 0 0 0

300W

Max.Power Combined

150W

120W

2.5W 6W 4W

At factory, all outputs in 60% rated load condition , the +5V output is

set to between 4.80V and 5.20V. The other outputs are checked to be

within the specified voltage accuracy range.

u Output power

The total DC continuous power shall be kept within 280W at ambient

temperature of 40°C below, and input voltage at 115VDC or 230VAC.

The maximum combined output power on the 3V3 and 5V rails is

150W. The maximum outputs load is not allowed for more then 30

seconds.

u Ripple & Noise

The peak to peak ripple and noise for +5V, +3.3V output are less than

50mV, and for the other output are less than 100mV at rated load.

Measuring is done by 15MHz bandwidth limited oscilloscope and

terminated each output with a 0.47 µF capacitor.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 73 74

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