Delta Electronics 33W Family, Series S48SA manual Electrical Characteristics Curves

Models: 33W Family Series S48SA

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Figure 11: Output voltage ripple at nominal input voltage and

ELECTRICAL CHARACTERISTICS CURVES

Copper

Strip

 

 

Vo(+)

 

 

 

10u

1u

SCOPE

RESISTIVE

 

LOAD

 

 

 

Vo(-)

 

 

 

Figure 9: Input Reflected Ripple Current, is, at full rated output current and nominal input voltage with 12µH source impedance and 33µF electrolytic capacitor (2 mA/div).

Figure 11: 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.

Figure 10: 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.

(V)

2.1

 

 

 

 

 

 

 

 

VOLTAGEOUTPUT

1.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

1.2

 

 

 

 

 

 

 

 

 

0.9

 

 

 

 

 

 

 

 

 

0.6

 

 

 

 

 

 

 

 

 

0.3

 

Vin=48V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

 

 

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

LOAD CURRENT (A)

Figure 12: Output voltage vs. load current showing typical current limit curves and converter shutdown points.

DS_S48SA1R812_06012006

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Delta Electronics 33W Family manual Electrical Characteristics Curves, Output voltage ripple at nominal input voltage and