Electrical characteristics curves – Delta Electronics S48SP User Manual
Page 6
DS_S48SP05007_05222008
6
ELECTRICAL CHARACTERISTICS CURVES
Figure 11:
Input Terminal Ripple Current, i
c
, at full rated output
current and nominal input voltage with 12µH source impedance
and 33µF electrolytic capacitor (100mA/div, 1us/div)
Figure
12:
Input reflected ripple current, i
s
, through a 12µH
source inductor at nominal input voltage and rated load current
(20 mA/div, 1us/div)
Strip
Copper
Vo(-)
Vo(+)
10u
1u
SCOPE
RESISTIVE
LOAD
Figure 13:
Output voltage noise and ripple measurement test
setup
Figure 14:
Output voltage ripple at nominal input voltage and
rated load current
(Io=7A)(20 mV/div, 1us/div)
Load capacitance: 1µF ceramic capacitor and 10µF tantalum
capacitor. Bandwidth: 20 MHz. Scope measurements should be
made using a BNC cable (length shorter than 20 inches).
Position the load between 51 mm to 76 mm (2 inches to 3
inches) from the module
Figure
15:
Output voltage vs. load current showing typical
current limit curves and converter shutdown points
0
0
0
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