Silverstone SST-ST30NF-V4.1 用户手册

3.3 Dynamic Loading 
The output voltages shall remain within the limits specified in Table 7 for the step loading 
and within the limits specified in Table 8 for the capacitive loading. The load transient 
repetition rate shall be tested between 50Hz and 5 kHz at duty cycle ranging from 10%-90%. 
The load transient repetition rate is only a test specification. 
The (a)step load may occur anywhere within the MIN load to the MAX load shown in Table 
5 and Table 6. 
 

+5V 

30% of Max. Load 

0.5 A/uS 

1000 uF 

+3.3V 

30% of Max. Load 

0.5 A/uS 

1000 uF 

+12V 

30% of Max. Load 

0.5 A/uS 

2200 uF 

+5VSB 

30% of Max. Load 

0.5 A/uS 

1 uF 

 
3.4 Capacitive Loading 
The power supply shall be stable and meet all requirements, except dynamic loading 
requirements, with the following capacitive loading ranges. 

 

+5V 10 

12,000 

uF 

+3.3V 10 12,000 uF 

+12V 10 11,000 uF 

-12V 1  350 uF 

+5VSB 1  350  uF 

 
3.5 Timing Requirements 
These are the timing requirements for the power assembly operation. The output voltages 
must rise from 10% to within regulation limits (T

vout_rise

) within 5 to 200mS. The +5V, +3.3V 

and +12V output voltages should start to rise at about the same time. All outputs must rise 
monotonically.    The +5V output needs to be greater than the +3.3V output during any point 
of the voltage rise. The +5V output must never be greater than the +3.3V output by more than 
2.25V. Each output voltage shall reach regulation within 50 mS (T

vout_on

) of each other 

during turn on of the power supply. Each output voltage shall fall out of regulation within 
400 mS (T

vout_off

) of each other during turn off. 

Tvout_rise 

Output voltage rise time from each main output 

5 

70 

mS 

Tvout_on 

All main output must be within regulation of each 
other within this time. 

 50 

mS 

Tvout_off 

All main output must leave regulation within this 
time 

 400 

mS