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參數(shù)資料
| 型號(hào)： | V048A015T090 |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | VI Chip - VTM Voltage Transformation Module |
| 中文描述： | 六芯片- VTM電壓轉(zhuǎn)換模塊 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 497K |
| 代理商： | V048A015T090 |
Vicor Corporation
Tel: 800-735-6200
vicorpower.com
VI Chip Voltage Transformation Module
V048K015T090
Rev. 1.0 Page 12 of 16
Application Note (continued)
Figure 22
— The PRM controls the factorized bus voltage, Vf, in proportion to output current to compensate for the output resistance,
Ro, of the VTM. The VTM output voltage is typically within 1% of the desired load voltage (V
L
) over all line and load conditions.
-In
PC
VC
TM
+In
-Out
+Out
VTM
+Out
-Out
K
Ro
–Out
+In
–In
VC
PC
TM
IL
NC
VH
SC
PR
SG
OS
NC
PRM-AL
L
O
A
D
Factorized
Power Bus
Vin
Vo = V
L ±
1.0%
(IoRo)
K
Rs
V
f
= V
L
+
K
FPA Adaptive Loop
Figure 23
— An external error amplifier or Point-of-Load IC (POLIC) senses the load voltage and controls the PRM output – the
factorized bus – as a function of output current, compensating for the output resistance of the VTM and for distribution resistance.
+Out
–Out
+In
–In
VC
PC
IL
NC
VH
SC
PR
SG
OS
NC
CD
PRM-AL
-In
PC
VC
TM
+In
-Out
+Out
VTM
+Out
-Out
K
Ro
Remote
Loop
Control
V
f
= f (Vs)
L
O
A
D
Vin
Factorized
Power Bus
Vo = V
L ±
0.4%
+S
–S
FPA Non-isolated Remote Loop
In figures 22 – 25;
K = VTM Transformation Ratio
Ro = VTM Output Resistance
Vf = PRM Output (Factorized Bus Voltage)
Vo = VTM Output
V
L
= Desired Load Voltage
FPA Isolated Remote Loop
VC
PC
TM
IL
VS
FB
NC
FG
NC
NC
NC
PRM-IF
+In
–Out
–In
-In
PC
VC
TM
+In
-Out
+Out
VTM
+Out
-Out
K
Ro
V
f
= f (Vs)
Factorized
Power Bus
Vin
Remote
Loop
Control
L
O
A
D
Vo = V
L ±
0.4%
+S
–S
Figure 24
—An external error amplifier or Point-of-Load IC (POLIC) senses the load voltage and controls the PRM output – the
factorized bus – as a function of output current, compensating for the output resistance of the VTM and for distribution
resistance. The factorized bus voltage (Vf) increases in proportion to load current. The remote feed back loop is isolated within
the PRM to support galvanic isolation and hipot compliance at the system level.
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