To: | <Topband@contesting.com> |
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Subject: | Re: Topband: Progress with ugly computer noise |
From: | "Paul Christensen" <w9ac@arrl.net> |
Date: | Wed, 4 Jul 2012 17:50:34 -0400 |
List-post: | <topband@contesting.com">mailto:topband@contesting.com> |
> 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 _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK |
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