FMD/FME EMI FILTER
0.7 TO 15 AMP
EMI INPUT
F
ILTERS
4.1 H
4.1 H
4.1 H
135 H
135 H
Positive
Output
Positive
Input
1.3 ⍀
0.1 F
50 V
6 F
50 V
10 F
50 V
Output
Common
Input
Common
0.015 F
500V
0.01 F
500 V
FMD28-461
FIGURE 3: FMD28-461 SCHEMATIC – TYPICAL VALUES
844 H
844 H
18.5 H
18.5 H
Positive
Output
Positive
Input
1.3 ⍀
0.015 F
0.68 F
0.68 F
Output
Common
Input
Common
0.015 F
FMD270-461
FIGURE 4: FMD270-461 SCHEMATIC – TYPICAL VALUES
EMI FILTER
DC/DC CONVERTER
+Vin
+Vin
+Vout
+Vout
Case
Case
R
R
L
L
Input
Output
Common Common
Input
Common
Output
Common
Multiple units
allowed up to
rated output
Chassis
ground
current of filter
The case ground connection between the filter and the converter should be as low an impedance as possible
to minimize EMI. Direct contact of baseplate to chassis ground provides the lowest impedance.
FIGURE 5: CONNECTION DIAGRAM
B3-10
CRANE [ Crane Aerospace & Electronics. ]
