Delta Electronics Delphi Series S48SS - Manual (Page 5)

DS_s48SS12001_06082006
ELECTRICAL CHARACTERISTICS CURVES
Strip Copper
Vo(-)
Vo(+)
10u 1u
SCOPE RESISTIVE
LOAD
Figure 9 :
Output voltage noise and ripple measurement test
setup. 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.
Figure 10: Output voltage ripple at nominal input voltage and
rated load current (20 mV/div). Load capacitance: 1µF ceramic
capacitor and 10µF tantalum capacitor. Bandwidth: 20 MHz.
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
0.0 0.5 1.0 1.5 2.0 2.5
LOAD C UR R EN T (A)
O
U
T
P
U
T
VO
L
T
AG
E (
V
)
Vin=48V
Figure 11: Output voltage vs. load current showing typical
current limit curves and converter shutdown points.
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