Delta Electronics Series 240W - Manual (Page 6)

DS_E48SB9R625_05222008 6
ELECTRICAL CHARACTERISTICS CURVES
Figure 11: Input Terminal Ripple Current, i
c
, at full rated output
current and nominal input voltage with 10µH source impedance
and 47µF electrolytic capacitor (200 mA/div, 2us/div).
Figure 12: Input reflected ripple current, i
s
, through a 10µH
source inductor at nominal input voltage and rated load current
(20 mA/div, 2us/div).
Vo(-)
Vo(+)
10u 1u
Copper Strip
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 (50 mV/div, 2us/div). Load capacitance: 1µF
ceramic capacitor and 10µF tantalum capacitor. Bandwidth: 20
MHz. Scope measurement 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.
0 0
0