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参数资料
| 型号： | V048F480T006-CB |
| 厂商： | Vicor Corporation |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | VTM CURRENT MULTIPLIER EVAL BOAR |
| 标准包装： | 1 |
| 系列： | V-I Chip™, VTM™ |
| 主要目的： | DC/DC，步升/步降 |
| 输出及类型： | 1，隔离 |
| 功率 - 输出： | 300W |
| 输出电压： | 48V |
| 电流 - 输出： | 6.25A |
| 输入电压： | 26 ~ 55 V |
| 稳压器拓扑结构： | 降压-升压 |
| 频率 - 开关： | 3.3MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | V048F480T006 |
| 其它名称： | 1102-1200 V048F480T006-CB-ND |
Not Recommended for New Designs - Replaced by VTM48Ex480y006A00
Application Note (continued)
VTM Current Multiplier Level 1 DC Behavioral Model for 48 V to 48 V, 6.3 A
V048F480T006
I OUT
R OUT
+
188.0
+
V IN
–
I Q
73 mA
1
? I OUT
+
–
V ? I
K
+
–
1
? V IN
V OUT
–
?
Figure 16 — This model characterizes the DC operation of the VI Chip ? VTM, including the converter transfer function and its losses. The model enables
estimates or simulations of output voltage as a function of input voltage and output load, as well as total converter power dissipation or heat generation.
VI Chip ? VTM Current Multiplier Level 2 Transient Behavioral Model for 48 V to 48 V, 6.3 A
14.8 nH
I OUT
R OUT
L OUT = 1.6 nH
R R C IN
+
V IN
C IN
C IN
1.3 m Ω
4.0 μF
I Q
73 mA
1
? I OUT
+
–
V?I
+
–
1
47.1
? V IN
188.0 m Ω
C OUT
RC OUT
0.87 m Ω
6 μF
+
V OUT
K
–
–
?
Figure 17 — This model characterizes the AC operation of the VI Chip VTM including response to output load or input voltage transients or steady state
modulations. The model enables estimates or simulations of input and output voltages under transient conditions, including response to a stepped load
with or without external filtering elements.
In figures below;
K = VTM current multiplier transformation ratio
R O = VTM output resistance
V F = PRM ? output (Factorized Bus Voltage)
V O = VTM output
V L = Desired load voltage
FPA? Adaptive Loop
V C
V H
0.01 μF
P C
T M
S C
S G
Factorized
+In
+Out
VTM
10 k Ω
I L
N C
P R
PRM ? -AL
Module
+I n +O u t
O S
N C
C D
R OS
R CD
Bus (V F )
0.4 μH
TM
VC
PC
+Out
?
Module
– Out
L
O
A
V IN
–I n
–O u t
10 Ω
– In
K
Ro
– Out
D
Figure 18 — The PRM regulator controls the factorized bus voltage, V F , in proportion to output current to compensate for the output resistance, Ro, of the
VTM current multipler. The VTM module output voltage is typically within 1% of the desired load voltage (V L ) over all line and load conditions.
VTM ? Current Multiplier
Page 10 of 11
Rev 3.1
01/2014
vicorpower.com
800 927.9474
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