iStarUSA TC-750PD8 Manuel D’Utilisation
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3.11 Output Transient Response
Expected output transient step sizes for each output. The transient load slew
rate is = 1.0 A/µs.
rate is = 1.0 A/µs.
Table of DC Output Transient Step Sizes
Output
Max. step size
(% of rated output amps per Sec 3.1)
+12V
10A (10000uF)
+5 V
8A (6000uF)
+3.3 V
8A (6000uF)
-12 V
0.1A (350uF)
+5 VSB
0.3A (6000uF)
(Adding external capactor)
Output voltages should remain within the regulation limits of Section 3.1,
Output voltages should remain within the regulation limits of Section 3.1,
and the power supply should be stable when subjected to load transients per
above table from any steady state load, including any or all of the following
conditions:
above table from any steady state load, including any or all of the following
conditions:
• Load-changing repetition rate of 50 Hz to 10 kHz
•AC input range per Section 2.0
•AC input range per Section 2.0
3.12 Capacitive Load
The power supply should be able to power up and operate normally with
the following capacitances simultaneously present on the DC outputs. This
capacitive loading should be used to check all of function test, but without
hold-up time.
capacitive loading should be used to check all of function test, but without
hold-up time.
Output
ATX12V
Capacitive load (uF)
0
0
0
0
1
V
2
1
+
0
0
0
6
V
5
+
0
0
0
6
V
3
.
3
+
0
5
3
V
2
1
-
0
0
0
6
B
S
V
5
+
3.13 Closed-loop Stability
The power supply shall be unconditionally stable under all
line/load/transient load conditions including capacitive loads specified in
Section 3.13. A minimum of 45 degrees phase margin and 10 dB gain margin
is recommended at both the maximum and minimum loads.
Section 3.13. A minimum of 45 degrees phase margin and 10 dB gain margin
is recommended at both the maximum and minimum loads.
4.0 Physical Environment
4.1 Temperature
4.1.1 Operating Ambient: +0 to 40℃
4.1.2 Non-Operating Ambient(Storage): －40℃ to +70℃
4.1.2 Non-Operating Ambient(Storage): －40℃ to +70℃