For locations, phone, fax, E-Mail see back cover
6
Industrial
Grade
MGDI-10 Standard Input Series
Gaia Converter FC97-006.08/05 Revision J
©
5
8- Electromagnetic Interference Qualifications
Electromagnetic interference requirements according to EN55022 class A and class B can be easily achieved as
indicated in the following table :
Electromagnetic interference requirements according
to EN55022 class A can be easily achieved by adding
an external input capacitance (C
I Value explained in
previous table) and a common mode noise capacitance
C
c (10 nF/rated voltage depending on isolation
requirement) connected between Gin and Gout. This
common mode noise capacitance C
c should be layed-
out as close as possible from the DC/DC converter.
8-1 Basic Configuration : Module Stand Alone with Input & Common Mode Noise Capacitance : EN55022 class A
8-2 Configuration with Module and Front filter KG9502 and Common Mode Noise Capacitance : EN 55022 Class B
Electromagnetic interference requirements according to
EN55022 class B can be easily achieved by adding an
external input filter KG9502 consisting of 4
capacitances, a common mode choke, and a differential
mode inductance, together with a common mode noise
capacitance (10 nF/rated voltage depending on isola-
tion requirement) connected between Gin and Gout.
Please consult KG9502 datasheet for further details.
Input capacitance C i
Common mode noise capacitance C = 10nF
c
- Input
+ Input
MGDI - Series
Vi
Vo
Gi
Go
Electromagnetic Interference according to EN55022
Conducted noise
emission
Configuration
With common mode capacitor
C
c = 10nF and input capacitor C i
With common mode capacitor
C
C = 10nF and external filter
Models
4,5-5,5V input models
Class A, C
i =10µF/ 35 V tantalum
Class B with KG9502
9-18V input models
Class A, C
i =10µF/ 35 V tantalum
Class B with KG9502
18-36V input models
Class A, C
i =4.7µF / 50 V tantalum
Class B with KG9502
Radiated noise
emission
Configuration
With common mode capacitor C
c = 10 nF
Models
All models
Class B
Common mode noise capacitance C = 10nF
c
MGDI - Series
Vi
Vo
Gi
Go
C4
C2
C3
L2
C1
L1
- Input
+ Input
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