For locations, phone, fax, E-Mail see back cover
3
EMI Filter FGDS-2A-50V
Gaia Converter FC05-050.03/08 Revision B
©
6
Hi-Rel
Grade
4- EMI Filter Electrical Schematics
The GAIA Converter FGDS-2A-50V is suitable for all GAIA Converter DC/DC converters and combinations :
• from 4W up to 50W total input power and up to 2A input current
• up to 50V permanent input voltage and up to 100V transient input voltage during 50ms
4-1 EMI Filter Electrical Schematics in Front of MGDM-04/10/18/20/26 & CGDM Series
The GAIA Converter FGDS-2A-50V can be used directly in front of any DC/DC converter and combinations
using of MGDM-04, MGDM-10, MGDM-18, MGDM-20, MGDM-26 and CGDM series. For better EMI performance and
stability purpose, GAIA Converter recommends to use a RC cell (see section 4-4) together with a common mode
noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each DC/DC converter.
C*
R*
MGDM-series
Go
Vo
GI
VI
Cc
Go
Vo
GI
VI
Gnd
EMI input filter
FGDS-2A-50V
4-2 EMI Filter Electrical Schematics in front of MGDM-25, MGDM-35 Series
The GAIA Converter FGDS-2A-50V can be used by adding an LC cell in front of any DC/DC converter and combinations
of MGDM-25, MGDM-35 series. For better EMI performance and stability purpose, GAIA Converter recommends to
use a RC cell (see section 4-4) and a LC cell (L=4.7µH, C=4.7µF) together with a common mode noise capacitance
Cc (10nF typical) connected between Gin and Gout pins of each DC/DC converter.
C*
R*
MGDM-series
Go
Vo
GI
VI
Cc
LC cell
Go
Vo
GI
VI
Gnd
EMI input filter
FGDS-2A-50V
4-3 EMI Filter Electrical Schematics in Front of Pre-regulator PGDS Series :
The GAIA Converter FGDS-2A-50V can be used directly in front of pre-regulators PGDS series with any DC/DC
converter and combinations of MGDM-04, MGDM-10, MGDM-18, MGDM-20, MGDM-26 and CGDM series.
For better EMI performance and stability purposes, GAIA Converter recommends to use a RC cell (see section 4-4)
together with a common mode noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each converter.
MGDM-series
Go
Vo
GI
VI
Cc
Go
Vo
GI
VI
Gnd
EMI input filter
FGDS-2A-50V
On/off
PGDS50
Go
Vo
GI
VI
Vimes
C*
R*
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