Delta-electronics H48SR Manual de usuario descargar pdf (Pagina 6)

DS_H48SR1R880_06272006

ELECTRICAL CHARACTERISTICS CURVES

Figure 13: Input Terminal Ripple Current, i

, 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

, through a 12µH

source inductor at nominal input voltage and rated load current

(5 mA/div).

Vo(-)

Vo(+)

10u 1u

Copper Strip

SCOPE RESISTIV

LOAD

Figure 15: Output voltage noise and ripple measurement

test setup

Figure 16: 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.

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

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0 10 203040 50607080 90100

LOAD CURRENT (A)

OUTPUT VOLTAGE (V)

Vin= 48V

Figure 17: Output voltage vs. load current showing typical

current limit curves and converter shutdown points.

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Delta-electronics H48SR Manual de usuario Pagina 6