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參數(shù)資料
| 型號： | QPI-3L |
| 廠商： | Vicor Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 7 Amp Active EMI Filter for 24V DC Bus |
| 中文描述： | 7安培有源EMI濾波器的24V直流總線 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 138K |
| 代理商： | QPI-3L |
Picor Corporation www.picorpower.com
QPI-3L Data Sheet Rev. 2.0 Page 4 of 8
Figure 6 –
Recommended schematic for QPI. Values of C
IN
and C1-C4 should be the values recommended by the converter manufacturer.
If the manufacturer does not specify a value for the Y-capacitors use 4.7nF. Ry=10
, 1/4 W.
BUS+
QPI+
BUS-
QPI-
S
BUS
SUPPLY
QPI
V
IN
+
V
OUT
+
V
IN
-
V
OUT
-
SHIELD
CONVERTER
Optional Connection
C1
C2
C3
C4
RY
PCB plane under converter
C
IN
CB
47
μ
F
QPIs will filter multiple DC-DC converters up to the
maximum current rating. The schematic in
Figure 7
shows the required circuit for multiple DC-DC
converters. The Shield Plane should be added under
each converter as a common EMI Shield. Note that only
a single RY is required in a multiple converter
configuration.
If higher attenuation is required, QPIs can be
connected in series.
Figure 8
shows the proper
schematic for QPIs in series. Note that only one RY is
required in this configuration.
The QPI can also be used to filter embedded or “down”
converters made up of discrete components. Where
ever possible a Shield Plane and Y-capacitor decoupling
should be included in the embedded converter design.
Follow the circuit and layout recommendations for a
brick converter shown in
Figures 7, 9 & 10
.
Thermal Considerations
The current derating curve shown in
Figure 5
should be
used when the PCB temperature in close proximity of
the QPI-3 exceeds 60°C. For example, the QPI-3 will
support up to 6.5 A of current or 156 W from a 24 Vdc
bus at an 80°C interface temperature. Temperature
should be measured at the PCB interface to the QPI-3
on the Bus +/- pads or the QPI+/- pads. Refer to
Figures
9, 10 & 12
for PCB layout recommendation.
0
10
20
30
40
50
60
70
80
90
100
PCB to QPI Interface Temperature (Deg. C)
Q
8
6
4
2
0
Figure 5 –
QPI-3 current derating curve.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| QPI-3LZ | 制造商:Vicor Corporation 功能描述:24V 7A ACTIVE EMI FILTER 制造商:Vicor Corporation 功能描述:QPI Series 10 - 40 Vin 7 A Open Frame Active EMI Filter 制造商:VICOR CORPORATION 功能描述:QPI Series 10 - 40 Vin 7 A Open Frame Active EMI Filter |
| QPI-3LZ-01 | 制造商:Vicor Corporation 功能描述:24V 7A ACTIVE EMI FILTER OPN FRM 制造商:Vicor Corporation 功能描述:QPI Series 10 - 40 Vin 7 A Open Frame Active EMI Filter w/ Hot Swap 制造商:VICOR CORPORATION 功能描述:QPI Series 10 - 40 Vin 7 A Open Frame Active EMI Filter w/ Hot Swap |
| QPI-4-CB1 | 制造商:Vicor Corporation 功能描述:DOSA Compliant Evaluation for 'QPI-4LZ Series |
| QPI-4-EVAL1 | 制造商:Vicor Corporation 功能描述:QPI-4LZ Evaluation Board w/ Terminal Blocks |
| QPI-4L | 制造商:POWERBOX 制造商全稱:Powerbox 功能描述:ACTIVE EMI FILTER |
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