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SilverStone ST46GF Manual User Manual

Page 4

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3. DC Output Specification

3.1 Output Current / Loading

The following table defines power and current rating. The power supply shall meet
both static and dynamic voltage regulation requirements for minimum load condition.

3.2 DC Voltage Regulation, Ripple and Noise

The power supply output voltages must stay within the following voltage limits when
operating at steady state and dynamic loading conditions. All outputs are measured
with reference to the return remote sense (ReturnS) signal. The +5V,+3.3V, +12V,
-5V,-12V and +5VSB outputs are measure at the power supply connectors references
to ReturnS. The +5V and +3.3V is measured at its remote sense signal (+5VS, +3.3VS)
located at the signal connector.

Table 2– Output Loads Range 1:
Note 1: Maximum continuous total DC output power should not exceed 460 W.

Table 3 – Regulation, ripple and noise
Ripple and Noise shall be measured using the following methods:
a) Measurements made differentially to eliminate common-mode noise
b) Ground lead length of oscilloscope probe shall be ? 0.25 inch.
c) Measurements made where the cable connectors attach to the load.
d) Outputs bypassed at the point of measurement with a parallel combination of
10uF tantalum capacitor in parallel with a 0.1uF ceramic capacitors.
e) Oscilloscope bandwidth of 0 Hz to 20MHz.
f) Measurements measured at locations where remote sense wires are connected.
g) Regulation tolerance shall include temperature change, warm up drift and dynamic load.

03

Output Voltage

Max. Load

Min. Load

Max. Combined

Total Output

+5V

35A

1A

220W

436W

+3.3V

22A

1A

+12V

30A

2A

-5V

0.5A

0A

2.5W

-12V

1A

0A

12W

+5VSB

2A

0.1A

10W

Output Voltage

Load Reg.

Line Reg.

Ripple & Noise

+5V

+/-5%

±1%

50Mv

+3.3V

+/-5%

±1%

50mV

+12V

+/-5%

±1%

120mV

-5V

+/-10%

±1%

100mV

-12V

+/-10%

±1%

120mV

+5VSB

+/-5%

±1%

50mV