Publicité
3.3 Short circuit protection
An output short circuit is defined as any output impedance of less than 0.1 ohms.
The power supply shall shut down and latch off for shorting the +3.3 VDC,+5
VDC, or +12 VDC rails to return or any other rail. Shorts between main output rails
and +5VSB shall not cause any damage to the power supply. The power supply
shall either shut down and latch off or fold back for shorting the negative
rails.+5VSB must be capable of being shorted indefinitely, but when the short is
removed, the power supply shall recover automatically or by cycling PS_ON#. The
power supply shall be capable of withstanding a continuous short-circuit to the
output without damage or overstress to the unit
3.4 Over-power protection
The power supply will be shutdown and latch off when output power is 150%~200%.
4. PCIe* AIC Peak Power Duty Cycle test
4.1 Test Condition:
Follow as below condition table.
Duty Cycle Definition ：
Duty Cycle Test Criteria for a 650W PSU – RMS
Duty Cycle
5%
8%
12.5%
25%
05
Time Constant
Time for Power
(TC)
Excursion (TE)
1900 μs
11.5ms
70ms
300 ms
Power @ TC
100 μs
596.5W
1ms
583.3W
10ms
573W
100 ms
600.04W
Power @ TE
1300 W
1170W
1040W
780W
Publicité
