Dynamic Loading; Capacitive Loading; Grounding; Residual Voltage Immunity In Standy Mode - Intel S1200V3RP Technical Product Specification

Intel® Server Board S1200V3RP TPS
13.1.5

Dynamic Loading

The output voltages remain within limits specified for the step loading and capacitive loading
specified in the table below. The load transient repetition rate is tested between 50Hz 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
conditions.
Output
+3.3V
+5V
12V1+12V2
+5VSB
Note:
1. Step loads on each 12V output may happen simultaneously.
2. The +12V should be tested with 2200F evenly split between the four +12V rails.
13.1.6

Capacitive Loading

The power supply is stable and meets all requirements with the following capacitive loading
ranges.
+3.3V
+5V
+12V
-12V
+5VSB
13.1.7

Grounding

The output ground of the pins of the power supply provides the output power return path. The
output connector ground pins are connected to the safety ground (power supply enclosure).
This grounding is well designed to ensure passing the max allowed Common Mode Noise levels.
The power supply is provided with a reliable protective earth ground. All secondary circuits are
connected to protective earth ground. Resistance of the ground returns to chassis does not
exceed 1.0 mΩ. This path may be used to carry DC current.
13.1.8

Residual Voltage Immunity in Standy mode

The power supply is immune to any residual voltage placed on its outputs (Typically a leakage
voltage through the system from standby output) up to 500mV. There is neither additional heat
generated, nor stressing of any internal components with this voltage applied to any individual
or all outputs simultaneously. It also does not trip the protection circuits during turn on.
Revision 1.2

Table 66. Transient Load Requirements

 Step Load Size
(See note 2)
6.0A
4.0A
18.0A
0.5A

Table 67. Capacitive Loading Conditions

Output MIN
250
400
500
1
20
Server Board Power Distribution
Load Slow Rate
970 F
0.5 A/sec
400 F
0.5 A/sec
2200 F
0.5 A/sec
20 F
0.5 A/sec
MAX Units
F
5000
F
5000
F
8000
F
350
F
350
Test capacitive Load
1,2
215