Intel H2000WP Technical Product Specification - Page 25

AC Line Fuse, AC Line Inrush, AC Line Dropout/Holdup, AC Line Fast Transient EFT Specification

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Intel® Server Chassis H2000 Family TPS Power Sub-System Table 14. Platinum Efficiency Requirement Loading Minimum Efficiency 100% of maximum 91% 50% of maximum 94% 20% of maximum 90% 10% of maximum 82% The power supply must pass with enough margins to make sure in production all power supplies meet these efficiency requirements. 3.2.4 AC Line Fuse The power supply shall have one line fused in the single line fuse on the line (Hot) wire of the AC input. The line fusing shall be acceptable for all safety agency requirements. The input fuse shall be a slow blow type. 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. 3.2.5 AC Line Inrush AC line inrush current shall not exceed 65A peak, for up to one-quarter of the AC cycle, after which, the input current should be no more than the specified maximum input current. The peak inrush current shall be less than the ratings of its critical components (including input fuse, bulk rectifiers, and surge limiting device). The power supply must meet the inrush requirements for any rated AC voltage, during turn on at any phase of AC voltage, during a single cycle AC dropout condition as well as upon recovery after AC dropout of any duration, and over the specified temperature range (Top). 3.2.6 AC Line Dropout/Holdup An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC line for any length of time. During an AC dropout the power supply must meet dynamic voltage regulation requirements. An AC line dropout of any duration shall not cause tripping of control signals or protection circuits. If the AC dropout lasts longer than the holdup time the power supply should recover and meet all turn on requirements. The power supply shall meet the AC dropout requirement over rated AC voltages and frequencies. A dropout of the AC line for any duration shall not cause damage to the power supply. Table 15. AC Power Holdup Reuqirement Loading Holdup time 70% 10.6msec The 12VSTB output voltage should stay in regulation under its full load (static or dynamic) during an AC dropout of 70ms min (=12VSB holdup time) whether the power supply is in ON or OFF state (PSON asserted or de-asserted). 3.2.7 AC Line Fast Transient (EFT) Specification The power supply shall meet the EN61000-4-5 directive and any additional requirements in IEC1000-4-5: 1995 and the Level 3 requirements for surge-withstand capability, with the following conditions and exceptions: Revision 1.0 15 Intel order number: G59059-001

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Intel
®
Server Chassis H2000 Family TPS
Power Sub-System
Revision 1.0
15
Intel order number: G59059-001
Table 14. Platinum Efficiency Requirement
Loading
100% of maximum
50% of maximum
20% of maximum
10% of maximum
Minimum Efficiency
91%
94%
90%
82%
The power supply must pass with enough margins to make sure in production all power supplies
meet these efficiency requirements.
3.2.4
AC Line Fuse
The power supply shall have one line fused in the
single line fuse
on the line (Hot) wire of the
AC input. The line fusing shall be acceptable for all safety agency requirements. The input fuse
shall be a slow blow type. 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.
3.2.5
AC Line Inrush
AC line inrush current shall not exceed
65A peak
, for up to one-quarter of the AC cycle, after
which, the input current should be no more than the specified maximum input current. The peak
inrush current shall be less than the ratings of its critical components (including input fuse, bulk
rectifiers, and surge limiting device).
The power supply must meet the inrush requirements for any rated AC voltage, during turn on at
any phase of AC voltage, during a single cycle AC dropout condition as well as upon recovery
after AC dropout of any duration, and over the specified temperature range (T
op
).
3.2.6
AC Line Dropout/Holdup
An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC
line for any length of time. During an AC dropout the power supply must meet dynamic voltage
regulation requirements. An AC line dropout of any duration shall not cause tripping of control
signals or protection circuits. If the AC dropout lasts longer than the holdup time the power
supply should recover and meet all turn on requirements. The power supply shall meet the AC
dropout requirement over rated AC voltages and frequencies. A dropout of the AC line for any
duration shall not cause damage to the power supply.
Table 15. AC Power Holdup Reuqirement
Loading
Holdup time
70%
10.6msec
The 12V
STB
output voltage should stay in regulation under its full load (static or dynamic) during
an AC dropout of
70ms
min
(=12VSB holdup time) whether the power supply is in ON or OFF
state (PSON asserted or de-asserted).
3.2.7
AC Line Fast Transient (EFT) Specification
The power supply shall meet the
EN61000-4-5
directive and any additional requirements in
IEC1000-4-5: 1995
and the Level 3 requirements for surge-withstand capability, with the
following conditions and exceptions: