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How to simulate skin effect in transient analysis?

G

Greg

Jan 1, 1970
0
Hi,
in most spice versions it is not a problem to simulate the skin effect
(maybe of an inductor) for AC analysis as there is often the variable
"freq" and you can assign a series resistor (in series to the
inductor...) the value "skin*squareroot(freq)".
But in transient analysis there is no variable freq. How can one
simulate a frequency dependent resistor there?

Greg
 
J

Jim Thompson

Jan 1, 1970
0
Hi,
in most spice versions it is not a problem to simulate the skin effect
(maybe of an inductor) for AC analysis as there is often the variable
"freq" and you can assign a series resistor (in series to the
inductor...) the value "skin*squareroot(freq)".
But in transient analysis there is no variable freq. How can one
simulate a frequency dependent resistor there?

Greg

You have to make up a multi-lump model. I have a simplified wirebond
model good up to a few GHz. I can post it if you are interested.

...Jim Thompson
 
G

Greg

Jan 1, 1970
0
Jim,

I would be very glad if you could post it.

Greg
 
J

Jim Thompson

Jan 1, 1970
0
Jim,

I would be very glad if you could post it.

Greg

See...

Newsgroups: alt.binaries.schematics.electronic
Subject: My Wirebond Model for Spice Simulation - MyWirebond.pdf
Message-ID: <[email protected]>

...Jim Thompson
 
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