Huang-Jen Chiu

Decoupling Subsystems
� Common-mode currents flowing between subsystems can
be effectively blocked with ferrite, common-mode
chokes
� Another method of decoupling subsystems is insert a
filter in the connection wires or lands between the
subsystems. This filter can be in the form of R-C packs,
ferrite beads, or a combination
� High-frequency signals on the power distribution system
between subsystems can be reduced by the use of
decoupling capacitors