> Total common mode inductance is 1 times L, not two times L. This is
> because the windings are parallel with near infinite mutual coupling. It
> is exactly like a bifilar filament choke.
Tom,
Run it in any SPICE variant as proof that in CM, total apparent inductance
is 2*L. For example, two 0.1H inductors:
subckt CommModeChoke InA InB OutA OutB
L1 InA OutA .1H
L2 InB OutB .1H
K1 L1 L2 0.99999999
.ends CommModeChoke
Connect a source to InA and InB with a load to OutA and OutB.
73,
Paul, W9AC
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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