Hi-Rel
Grade
EMI Filter FGDS-2A-50V
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.
Vo
Vo
VI
VI
R*
EMI input filter
FGDS-2A-50V
MGDM-series
C*
GI
Go
GI
Go
Gnd
Cc
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.
LC cell
Vo
Vo
VI
VI
R*
EMI input filter
FGDS-2A-50V
MGDM-series
C*
GI
Go
GI
Go
Gnd
6
Cc
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.
Vimes
Vo
Vo
Go
Vo
VI
GI
VI
VI
R*
C*
EMI input filter
FGDS-2A-50V
PGDS50
MGDM-series
GI
Go
GI
Go
On/off
Gnd
Cc
3
Gaia Converter FC05-050.03/ 08 Revision B
©
For locations, phone, fax, E-Mail see back cover
ETC [ ETC ]
