SilverStone GEMINI Series Bedienungsanleitung

Gemini 900A Gold

Gemini Series

Cybenetics Gold 900W ATX Redundant Power Supply

▓

900W+900W 24hour and well working performance at 50°C fully continuous power output

▓

ATX form factor

▓

Cybenetics Gold Certification

▓

1+1 ATX redundant configuration

▓All Japanese electrolytic capacitors

▓

Hot swappable design

▓

Convenient pull-out handle bars

Gemini 900A Gold

Gemini Series

SST-GM900A-GF / SST-GM900A-GFU

1+1 ATX Redundant Switching Power Supply

Cybenetics Gold efficiency certified.

900W+900W

The PS/2 redundant is a power sub-system made up of a cage and redundant, hot

swappable power supply modules. The cage is intended to be mounted in the

system and not redundant or hot swappable. The exterior face of the cage accepts

hot swappable power supply modules. The distribution board within the cage

distributes output power from the modules to a wire harness. Cooling fans, EMI

filtering, and IEC inlet connector(s) may be located in the modules.

The power supply modules shall incorporate universal power input with active

power factor correction, which shall reduce line harmonics in accordance with the

EN61000-3-2 and JEIDA MITI standards.

The AC input connector shall be an IEC 320 C-14 power inlet. This inlet is

rated for 10A/250 VAC.

The power supply must operate within all specified limits over the following

input voltage range.

1.GENERAL DESCRIPTION AND SCOPE

2.AC Input Requirements

2.1 AC Inlet Connector

2.2 AC Input Voltage Specification

Table1: AC Input Rating

2.3 Power Factor

The power factor shall be greater than 0.95 at full load / 100 Vrms input

voltage conditions, and 0.9 at full load / 240Vrms input voltage conditions

2.4 Input Under Voltage

Brown-out( AC UVP)

The power supply shall power off if the AC input is below VAC low_limit and

shall start (auto recover) if VAC recover is reached. Input of VAC below VAC

recover shall not cause any damage to the power supply, including the input

fuse.

2.5 Hold-up Time

The power supply holdup time requirements to 80% of maximum load.

2.6 Efficiency

Efficiency shall be tested at AC input voltages of 115VAC and 230VAC. And

only insert one power module into the power cage. The voltage should measure

on the back plane. It could be support 80 Plus Gold efficiency

2.7 AC Line Dropout

An AC line dropout is defined to be when the AC input drops to 0 VAC at any

phase of the AC line for any length of time. During an AC dropout of one cycle

or less the power supply must meet dynamic voltage regulation requirements

up to 75% of the rated output load. An AC line dropout of one cycle or less shall

not cause any tripping of control signals or protection circuits. If the AC dropout

lasts longer than one cycle or the load is greater than 75%, the power supply

should recover and meet all turn on requirements. The power supply must meet

the AC dropout requirement over rated AC voltages, frequencies, and output

loading conditions. Any dropout of the AC line shall not cause damage to the

power supply. In the case of redundant AC inputs, the AC line dropout may

occur on either or both AC inlet.

ıĳ

PARAMETER MIN RATED MAX

Voltage (110) 90 100-127 Vrms 140 Vrms

Voltage (220) 180 200-240 Vrms 264 Vrms

Frequency 47 Hz -- 63 Hz

VAC recover (Brown in) VAC low_limit (Brown out)

82VAC ±4VAC 75VAC ±5VAC

ıĴ

2.8 AC Line Fuse

2.9 AC Inrush

The power supply shall incorporate one input fuse on the LINE side for input

over-current protection to prevent damage to the power supply and meet

product safety requirements. Fuses should be slow blow type or equivalent to

prevent nuisance trips. AC inrush current shall not cause the AC line fuse to

blow under any conditions. All protection circuits in the power supply shall not

cause the AC fuse to blow unless a component in the power supply has failed.

This includes DC output load short conditions.

An additional inrush current limit is recommended for some system applications

that require multiple systems on a single AC circuit. Under all other conditions,

power supply should not be damaged.

(Cold start – 25 deg. C)

2.10 AC Line Transient Specification

Table 2: AC Line Sag Transient Performance

AC line transient conditions shall be defined as “sag” and “surge”

conditions. Sag conditions (also referred to as “brownout” conditions) will be

defined as the AC line voltage dropping below nominal voltage. Surge conditions

will be defined as the AC line voltage rising above nominal voltage.

The power supply shall meet the requirements under the following AC line sag

and surge conditions.

AC Line Sag

Duration Sag Operating AC Voltage Line Frequency Performance

Criteria

Continuous 10% Nominal AC Voltage

ranges

50/60 Hz No loss of

function or

performance

0 to 1 AC cycle 70% Nominal AC Voltage

ranges

50/60 Hz No loss of

function or

performance

>1 AC cycle >10% Nominal AC Voltage

ranges

50/60 Hz Loss of function

acceptable, self-

recoverable

115V 40A

230V 80A

3.1 Output Power/Currents

3.2 Voltage Regulation

The following tables define the power and current ratings for different

recommended power levels.

The power assembly output voltages must stay within the following voltage

limits when operating at steady state and dynamic loading conditions.

These limits include the peak-peak ripple/noise specified in Section 5.10.

All outputs are measured with reference to the return remote sense (ReturnS)

signal. The 5 V, 12V, –12 V, and 5 VSB outputs are measured at the power

assembly connectors referenced to ReturnS. The +3.3 V is measured at its

remote sense signal (3.3VS) located at the signal connector.

Table 3: AC Line Surge Transient Performance

AC Line Surge

Duration Surge Operating AC Voltage Line Frequency Performance

Criteria

Continuous 10% Nominal AC Voltages 50/60 Hz No loss of function

or performance

0 to ½ AC cycle 30% Mid-point of nominal

AC Voltages

50/60 Hz No loss of function

or performance

3.DC Output Specification

ıĵ

3.1.1 Standby Outputs

Table 4: 900 W Load Ratings

The 5 VSB output shall be present when an AC input greater than the

power supply turn on voltage is applied.

1. Maximum continuous total DC output power should not exceed 900 W.

2. Maximum continuous combined load on +3.3 VDC and +5 VDC outputs

shall not exceed 130 W

Voltage Minimum

Continuous

Maximum

Continuous

+3.3 V 0 A 20.0 A

+5 V 0 A 20.0 A

+12V 1A 75 A

-12 V 0 A 0.5A

+5 VSB 0 A 3 A

3.3 Dynamic Loading

Table 6: Voltage Regulation Limits

Table 9: Transient Load Requirements

Table 10: Capacitive Loading Conditions

The output voltages shall remain within the limits specified in Table 9 for the

step loading and within the limits specified in for the capacitive loading.

The load transient repetition rate shall be tested between 50 Hz and 5kHz at

duty cycles ranging from 10%-90%. The load transient repetition rate is only

a test specification. The step load may occur anywhere within the MIN load to

the MAX load shown in Table 7 and Table 8.

3.4 Capacitive Loading

The power supply shall be stable and meet all requirements, except dynamic

loading requirements, with the following capacitive loading ranges.

Note: Up to 10,000 μF of the +12V capacitive loading may be on the +12V output.

ıĶ

Parameter MIN NOM MAX Units Tolerance

+3.3 V +3.135 +3.30 +3.46 Vrms +5/-5%

+5 V +4.75 +5.00 +5.25 Vrms +5/-5%

+12V +11.40 +12.00 +12.60

Vrms +5/-5%

-12 V -10.80 -12.00 -13.20 Vrms +10/-10%

+5 VSB +4.75 +5.00 +5.25 Vrms +5/-5%

Output . Step Load Size Load Slew Rate Capacitive Load

+3.3 V 20% of max load 0.5 A/μs 1000 μF

+5 V 20% of max load 0.5 A/μs 1000 μF

+12V 30% of max load 0.5 A/μs 6600 μF

+5 VSB 25% of max load 0.5 A/μs 1 μF

Output MIN MAX Units

+3.3 V 10 12,000 μF

+5 V 10 12,000 μF

+12 V 10 33,000 μF

-12 V 1 350 μF

+5 VSB 1 350 μF

ıķ

3.5 Ripple and Noise

3.6 Load sharing

Table 11: Ripple and Noise

3.7 Hot Swap Requirements

The +12 V output shall have active load sharing. When operating at 50%

of full load, the output current of any 1+1 power supplies shall be within

(+/-10%). For example, if power supply #1 is operating at 20A, then all other

power supplies within the system shall be operating between 18A to 22A

(+/- 10% of 20A)

The power supply modules shall be hot swappable. Hot swapping a power

supply is the process of inserting and extracting a power supply from an

operating power system. During this process the output voltages shall

remain within the limits specified in Table 6 with the capacitive load specified.

The hot swap test must be conducted when the sub-system is operating

under both static and dynamic conditions. The sub-system shall not exceed

the maximum inrush current as specified in Table 7 and Table 8. The power

supply can be hot swapped by the following methods:

AC connecting separately to each module. Up to two power supplies may be

on a single AC power source. Extraction: The AC power will be disconnected

from the power supply first and then the power supply is extracted from the

sub-system. This could occur in standby mode or powered on mode. Insertion:

The module is inserted into the cage and then AC power will be connected to

the power supply module.

For power modules with AC docking at the same time as DC. Extraction:

The module is extracted from the cage and both AC and DC disconnect at the

same time. This could occur in standby or power on mode. No damage or

arcing shall occur to the DC or AC contacts which could cause damage.

Insertion: The AC and DC connect at the same time as the module is inserted

into the cage. No damage to the connector contacts shall occur. The module

may power on or come up into standby mode.

Many variations of the above are possible. Supplies need to be compatible with

these different variations depending upon the sub-system construction.

In general, a failed (off by internal latch or external control) supply may be

removed, then replaced with a good power supply, however, hot swap needs

to work with operational as well as failed power supplies. The newly inserted

power supply may get turned on by inserting the supply into the system or by

system management recognizing an inserted supply and explicitly turning it on.

+3.3 V +5 V +12 V -12 V +5 VSB

50 mVp-p 50 mVp-p 120 mVp-p 200 mVp-p 50 mVp-p

These are the timing requirements for the power supply operation.

The output voltages must rise from 10% to within regulation limits

(Tvout_rise) within 1 to 70ms. The +3.3V, +5V and +12V output voltages

should start to rise approximately at the same time. All outputs must rise

monotonically. Each output voltage shall reach regulation within 50ms

(Tvout_on) of each other during turn on of the power supply. Each output+

voltage shall fall out of regulation within 400msec (Tvout_off) of each other

during turn off. Refer to Figure 1 Power Supply Timing. Figure 2

Turn-on Turn-off Timing shows the timing requirements for the power supply

being turned on and off via the AC input with PSON held low, and the

power supply being turned on and off with the PSON signal after AC input

is applied.

3.8 Timing Requirements

ıĸ

Table: 12 Output Voltage Timing

Figure 1: Power Supply Timing

ITEM DESCRIPTION MIN MAX UNITS

Tvout_rise Output voltage rise time from each main

output.

1 70 msec

Tvout_on All main outputs must be within

regulation of each other within this time.

50 msec

T vout_off All main outputs must leave regulation

within this time.

400 msec

10% Vout

Tvout rise

Tvout

Tvout_off

ıĹ

Table 13: Turn On/Turn Off Timing

AC Input Figure 3: Timing Diagram

ITEM DESCRIPTION MIN MAX UNIS

Tsb_on_delay Delay from AC being applied to 5VSB

being within regulation.

3000 msec

T ac_on_delay Delay from AC being applied to all

output voltages being within regulation.

4500 msec

Tvout_holdup Time all output voltages stay within

regulation after loss of AC.

17 msec

Tpwok_holdup Delay from loss of AC to deassertion of

PWOK.

16 msec

Tpson_on_delay Delay from PSON#active to output

voltages within regulation limits.

5 400 msec

T pson_pwok Delay from PSON#deactive to PWOK

being deasserted.

100 msec

Tpwok_on Delay from output voltages within

regulation limits to PWOK asserted at

turn on.

100 500 msec

T pwok_off Delay from PWOK deasserted to output

voltages (3.3V, 5V, 12V) dropping out of

regulation limits.

1 msec

Tpwok_low Duration of PWOK being in the

deasserted state during an off/on cycle

using AC or the PSON signal.

100 msec

Tsb_vout Delay from 5VSB being in regulation to

O/Ps being in regulation at AC turn on.

50 1000 msec

Vout

PWOK

5VSB

PSON

Tsb on dela

TAC_on_delay Tpwok_on

Tvout_holdup

Tpwok_holdup

Tpson on delay

Tsb on dela

Tpwok_on

Tpwok_off

Tpson_pwok

Tpwok

Tsb_vout

AC turn on/off PSON turn

on/off cycle

Protection circuits inside the power supply shall cause only the power supply’s

main outputs to shutdown. If the power supply latches off due to a protection

circuit tripping, an AC cycle OFF for 15 s and a PSON# cycle HIGH for 1 s must

be able to reset the power supply.

4. Protection Circuits

4.1 Over Current Protection and Short Circuit Protection

4.2 Over Voltage Protection

Table 15: Over Current/Short Circuit Protection

The Over Current Condition shall be measured internal to the power supply

on all outputs (Main and Auxiliary OutputAR), and preventing outputs to

exceed current limits specified in below table. The power supply shall

shutdown and latch off after an Over Current condition on main outputs,

the auxiliary output shall be auto recover (VsBAR) after the OCP/SCP had

been removed.

The latch on the main output can be cleared by asserting PSON# signal or

by an Input Power interruption. The power supply shall alert the system of

the OCP/SCP condition via SMB Alert# and fail LED indicator.

The power supply shall not be damaged from repeated power cycling in

this condition.

The power supply over voltage protection shall be locally sensed in the hot

swap modules. The power supply shall shutdown and latch off after an over

voltage condition occurs. This latch shall be cleared by toggling the PSON#

signal or by an AC power interruption. Table 16 contains the over voltage

limits. The values are measured at the output of the power supply’s connectors.

The voltage shall never exceed the maximum levels when measured at the

power pins of the power supply connector during any single point of fail. The

voltage shall never trip any lower than the minimum levels when measured

at the power pins of the power supply connector.

ıĺ

Voltage Over Current Limit (Iout limit)

+3.3 V 24A---32A

+5 V 24A---32A

+12 V 83A---95A

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