Delta Electronics E48SB12020, Datasheet, Page: 6 / 11

DS_E48SB12020_05222008
6
ELECTRICAL CHARACTERISTICS CURVES
Figure 12:
Input Terminal Ripple Current, i
c
, at full rated output
current and nominal input voltage with 12µH source impedance
and 47µF electrolytic capacitor (100 mA/div, 2us/div).
Figure 13:
Input reflected ripple current, i
s
, through a 12µH
source inductor at nominal input voltage and rated load current
(20 mA/div, 20us/div).
Vo(-)
Vo(+)
10u 1u
Copper Strip
SCOPE RESISTIVE
LOAD
Figure 14:
Output voltage noise and ripple measurement test
setup.
Figure 15:
Output voltage ripple at nominal input voltage and
rated load current (50 mV/div, 2us/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.