PRM48BH480T250A00 Datasheet, PDF (23/44 Pages) Vicor Corporation – PRM™ Regulator

DC Modulator Gain and Powertrain Equivalent Resistance vs.
Output Current - Vout = 20 V
10
150
7.5
125
G_CN
(dB)
5
100
2.5
75
0
50
‐2.5
25
r_eq
(Ω)
‐5
0
0
0.75
1.5
2.25
3
3.75
4.5
5.25
Load Current[A]
VIN: 38 V
VIN: 48 V
VIN: 55 V
Figure 18 Powertrain Characteristics vs. I_OUT, V_IN
Resistive Load, V_OUT = 20V
DC Modulator Gain and Powertrain Equivalent Resistance vs.
Output Current - Vout = 48 V
10
300
G_CN
(dB)
5
250
0
200
‐5
150
‐10
100
‐15
r_eq
50
(Ω)
‐20
0
0
0.75
1.5
2.25
3
3.75
4.5
5.25
Load Current[A]
VIN: 38 V
VIN: 48 V
VIN: 55 V
Figure 19 Powertrain Characteristics vs. I_OUT, V_IN
Resistive Load, V_OUT = 48V
DC Modulator Gain and Powertrain Equivalent Resistance vs.
Output Current - Vout = 55 V
10
300
G_CN
(dB)
5
250
0
200
‐5
150
‐10
100
‐15
r_eq
50
(Ω)
‐20
0
0
0.75
1.5
2.25
3
3.75
4.5
5.25
Load Current[A]
VIN: 38 V
VIN: 48 V
VIN: 55 V
Figure 20 Powertrain Characteristics vs. I_OUT, V_IN
Resistive Load, V_OUT = 55V
PRM48BH480 X 250A00
Powertrain Equivalent Input Resistance vs.
Output Current - Vout = 20 V
120
100
80
60
40
20
0
0
0.75
1.5
2.25
3
3.75
4.5
5.25
Load Current[A]
VIN: 38 V
VIN: 48 V
VIN: 55 V
Figure 21 Magnitude of powertrain dynamic input impedance
vs. I_OUT, V_IN; V_OUT = 20 V
Powertrain Equivalent Input Resistance vs.
Output Current - Vout = 48 V
50
40
30
20
10
0
0
0.75
1.5
2.25
3
3.75
4.5
5.25
Load Current[A]
VIN: 38 V
VIN: 48 V
VIN: 55 V
Figure 22 Magnitude of powertrain dynamic input impedance
vs. I_OUT, V_IN; V_OUT = 48 V
Powertrain Equivalent Input Resistance vs.
Output Current - Vout = 55 V
50
40
30
20
10
0
0
0.75
1.5
2.25
3
3.75
4.5
5.25
Load Current[A]
VIN: 38 V
VIN: 48 V
VIN: 55 V
Figure 23 Magnitude of powertrain dynamic input impedance
vs. I_OUT, V_IN; V_OUT = 55 V
- 23 -
Rev. 1.0
11/2012