SilverStone ST46GF User Manual
ST46GF
460W + 460W PS/2 redundant power supply
Industry-leading reliability
Durable zinc-plated surface
Convenient pull-out handle bars
Hot swappable
SPECIFICATION
SilverStone GEMINI ST46GF
Mini Redundant Power Supply
With Active PFC
460W + 460W
1. General
This is the specification of Model SST-ST46GF; it is intended to describe the functions
and performance of the subject power supply. This 460 watts Redundant Power Supply
with Active PFC (Power Factor Correction) capability, meets EN61000-3-2 and equips
Full Range Input features.
2. AC Input Characteristics
2.1 AC Input Voltage, Frequency and Current ( Rating: 100V-240Vac, 47-63Hz, 8-4A )
The power supply must operate within all specified limits over the input voltage range in Table 1.
Harmonics distortion of up to 10% THD must not cause the power supply to go out of specified limits.
01
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Frequency 47 Hz 50 / 60 Hz 63 Hz
Table 1 - AC Input Voltage and Frequency
2.2 AC Inrush Current
The power supply must meets inrush requirements of any rated AC voltage, during turn on at any
phase of voltage, during a single cycle AC dropout condition, during repetitive On/Off cycling of
AC, and over the specified temperature range. The peak inrush current shall be less than the rating
of its critical components (including input fuse, bulk rectifiers, and surge limiting device).
mixaMmuminiM
u
132 Vac 8 AVoltage (115V) 90 Vac 100-120Vac
264V ac 4 AVoltage (230V) 180 Vac 200-240Vac
Max.
Input Current
ST46GF
2.3 Input Power Factor Correction ( Active PFC)
_
The power factor at full load shall be 0.98 at nominal input voltage.
2.4 Input Current Harmonics
When the power supply is operated in 90-264Vac of Sec. 2.1, the input harmonic current drawn
on the power line shall not exceed the limits set by EN61000-3-2 class “D” standards. The power
supply shall incorporate universal power input with active power factor correction.
2.5 AC Line Dropout
An AC line dropout of 17mS or less shall not cause any tripping of control signals or protection circuits.
If the AC dropout lasts longer than 17mS the power supply should recover and meet all turn on
requirements. The power supply shall meet the regulation requirement over all rated AC voltages,
frequencies, and output loading conditions. Any dropout of the AC line shall not cause damage to
the power supply. An AC line dropout is defined as a drop in AC line to 0VAC at any phase of the
AC line for any length of time.
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02
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.
Output Voltage
Max. Load
Min. Load
Max. Combined
Total Output
Table 2– Output Loads Range 1:
Note 1: Maximum continuous total DC output power should not exceed 460 W.
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.
Output Voltage
Load Reg.
Line Reg.
+5V
35A
1A
+5V
+/-5%
±1%
220W
+3.3V
22A
1A
436W
+3.3V
+/-5%
±1%
+12V
30A
2A
+12V
+/-5%
±1%
-5V
0.5A
0A
2.5W
-5V
+/-10%
±1%
-12V
1A
0A
12W
-12V
+/-10%
±1%
+5VSB
2A
0.1A
10W
+5VSB
+/-5%
±1%
03
Ripple & Noise
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.
50Mv
50mV
120mV
100mV
120mV
50mV
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