How to simulate skin effect in transient analysis?

Jul 16, 2005 3 Replies

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

| James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

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:

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

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