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EMC内部培训资料

资料介绍
ELECTROMAGNETIC COMPATIBILITY

Electromagcompat1.doc

















ELECTROMAGNETIC COMPATIBILITY



























February 2002
REMINDERS

DIFFERENTIAL MODE

DM signal transmission (to and from isolated wires)

DM disturbance : if two wires are close to each other
but far from a disturbance source ,
DM disturbance may be neglected .


DM measurement





COMMON MODE

CM signal transmission
(the return signals flow on a common conductive path)





CM disturbance : the disturbance is shared by
every conductor in the same direction
and the total return takes place in the ground
The ground is a dustbin for Icm







……
EMC内部培训资料
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