Delta Electronics S48SR - Manual (Page 5)

DS_S48SR12001_07052006
5
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 (50 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 CU RR ENT (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.