Product # PQ60015QTA40

Phone 1-888-567-9596

Doc.# 005-2QT651C Rev. C

2/6/04

Page 8

Performance Curves

48Vin 1.5Vout 40A

Quarter

Quarter

Brick

Brick

0.0001

0.001

0.01

0.1

10

100

1,000

10,000

100,000

Hz

36 Vin

48 Vin

75 Vin

Figure 19: Magntiude of incremental output impedance (Zout =

vout/iout) for minimum, nominal, and maximum input voltage at full

rated power.

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

10

100

1,000

10,000

100,000

Hz

36 Vin

48 Vin

75 Vin

Figure 20: Magnitude of incremental forward transmission (FT =

vout/vin) for minimum, nominal, and maximum input voltage at full

rated power.

-60

-50

-40

-30

-20

-10

0

10

100

1,000

10,000

100,000

Hz

36 Vin

48 Vin

75 Vin

Figure 21: Magnitude of incremental reverse transmission (RT =

iin/iout) for minimum, nominal, and maximum input voltage at full rated

power.

0.1

1

10

100

10

100

1,000

10,000

100,000

Hz

36 Vin

48 Vin

75 Vin

Figure 22: Magnitude of incremental input impedance (Zin = vin/iin)

for minimum, nominal, and maximum input voltage at full rated power.

0.0

0.5

1.0

1.5

2.0

2.5

0

102030

405060

35 V

48 V

75 V

Figure 23: Output voltage vs. load current showing typical current limit

curves and converter shutdown points.