Electrical characteristics curves – Delta Electronics Q48SR User Manual
Page 6
6
ELECTRICAL CHARACTERISTICS CURVES
Figure 13:
Input Terminal Ripple Current, i
c
, at full rated
output current and nominal input voltage with 12µH source
impedance and 33µF electrolytic capacitor (500 mA/div).
Figure
14:
Input reflected ripple current, i
s
, through a 12µH
source inductor at nominal input voltage and rated load current
(5 mA/div).
Vo(-)
Vo(+)
10u
1u
Copper Strip
SCOPE
RESISTIVE
LOAD
Figure 15:
Output voltage noise and ripple measurement
test setup
Figure
16:
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.
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.
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