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V•I Chip Pre-Regulator Module

P048K048T24AL

Rev. 1.4

Page 5 of 15

PRELIMINARY

V•I Chip Pre-Regulator Module

Figure 10 — Transient response; PRM alone, 48 Vin, 0 A - 5 A, -0 A

no load capacitance. Local Loop

Figure 12 — Transient response; load change from 40 – 80 – 40 A,

at the output of a K=1/24 VTM with no Vf bus capacitance and 100 µF

load capacitance.

78

80

82

84

86

88

90

92

94

96

98

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Output Current (A)

36Vin

48Vin

75Vin

Figure 8 — Efficiency vs. output current at 36 Vf

76

78

80

82

84

86

88

90

92

94

96

98

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Output Current (A)

36Vin

48Vin

75Vin

Figure 9 — Efficiency vs. output current at 26 Vf

Output Waveforms

Figure 11 — Transient response; load change from 10 – 40 – 10 A, at

the output of a K=1/24 VTM with no Vf bus capacitance and 100 µF

load capacitance.