Hi all,
I'm dealing with a PCB that has a floating section isolated from the rest
of the board for safety purposes (patient applied part).
I found out some problems with emissions, due to the coupling between the
floating part and of the PCB and the earthed one.
My questions are concerning the layout design of the floating area:
1) Is it best to minimize the HF capacitive coupling between the earthed
ground and the floating ground or to maximize it?
2) Is it best to reduce the amount of the floating ground or to increase
it?
Does it depend on the goodness of the "main ground", i.e. how much it is
"cold" ? (I see the board as a dipole with one end connected to earth, and
the other floating).
Thanks,
p.p.
-------------------------------------------------------------
ESAOTE S.p.A. Paolo Peruzzi
Research & Product Development Design Quality Control
Via di Caciolle,15 tel:+39.055.4229306
I- 50127 Florence fax:+39.055.4223305
e-mail: [email protected]
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