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参数资料
| 型号： | PR048A480T012TP |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-20 |
| 文件页数： | 13/13页 |
| 文件大小： | 1093K |
| 代理商： | PR048A480T012TP |
Pre-Regulator Module
PR048A480T012FP
vicorpower.com
Rev. 1.0
Page 9 of 13
APPLICATION INFORMATION
Overview of Adaptive Loop Compensation
Adaptive Loop compensation, illustrated in Figure 15, contributes to the
bandwidth and speed advantage of Factorized Power. The PRM moni-
tors its output current and automatically adjusts its output voltage to
compensate for the voltage drop in the output resistance of the VTM.
ROS sets the desired value of the VTM output voltage, Vout; RCD is set to
a value that compensates for the output resistance of the VTM (which,
ideally, is located at the point of load). For selection of ROS and RCD,
refer to Table 1 below or Page 10.
The VI BRICK’s bi-directional VC port :
1. Provides a wake up signal from the PRM to the VTM that
synchronizes the rise of the VTM output voltage to that of the PRM.
2. Provides feedback from the VTM to the PRM to enable the PRM to
compensate for the voltage drop in VTM output resistance, RO.
L
O
A
D
Factorized
Bus (Vf)
Vo = VL ± 1.0%
(IoRo)
K
Vf = V
L +
K
Vin
ROS
RCD
PRM
VH
SC
SG
OS
NC
CD
VC
PC
TM
IL
NC
PR
+IN
+OUT
-OUT
-IN
VTM
+IN
+OUT
-OUT
+OUT
-OUT
-IN
TM
VC
PC
Figure 15 — With Adaptive Loop control, the output of the VTM is regulated over the load current range with only a single interconnect between the PRM and
VTM and without the need for isolation in the feedback path.
Desired Load Voltage (Vdc)
VI BRICK VTM P/N(1)
Max VTM Output Current (A)(2)
ROS (kΩ)(3)
RCD (Ω)(3)
1.0
VT048A015T100FP
100
3.57
26.1
1.2
VT048A015T100FP
100
2.94
32.4
1.5
VT048A015T100FP
100
2.37
39.2
1.8
VT048A020T080FP
80
2.61
35.7
2.0
VT048A020T080FP
80
2.37
39.2
3.0
VT048A030T070FP
70
2.37
39.2
3.3
VT048A040T050FP
50
2.89
32.6
5.0
VT048A060T040FP
40
2.87
33.2
8.0
VT048A080T030FP
30
2.37
32.9
9.6
VT048A096T025FP
25
2.37
32.9
10
VT048A120T025FP
25
2.86
32.9
12
VT048A120T025FP
25
2.37
39.2
15
VT048A160T015FP
15
2.49
37.4
24
VT048A240T012FP
12.5
2.37
39.2
28
VT048A320T009FP
9.4
2.74
35.7
36
VT048A480T006FP
6.3
3.16
30.1
48
VT048A480T006FP
6.3
2.37
39.2
Table 1 — Configure the VI BRICK PRM/VTM for the desired output voltage.
Note:
(1) See Table 2 on page 10 for nominal Vout range and K factors.
(2) See “PRM output power vs. VTM output power” on Page 11
(3) 1% precision resistors recommended
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