Multisim Experts-> ?transformer inductance values?

[alex]

I'm looking to find the inductance values for the coils in a multisim
transformer.

Alright, I'm trying to simulate a simple diode modulator for a school
experiment and am stumped at simulating the IF can.

I understand how to make an IF can with two capacitors set in
resonance with the inductors in the transformer, only I'm stumped at
determining/setting the inductance values.

I've been trying to decipher multisims settings to find values for the
inductance formula:

L = N^2*(u*A)/length

Any help would be greatly appreciated. The experiment I'm looking to
simulate requires trials through stages for way more components than I
have.

Thanks again,

Alex

 

[Kevin Aylward]

alex wrote:

I'm looking to find the inductance values for the coils in a multisim
transformer.

Alright, I'm trying to simulate a simple diode modulator for a school
experiment and am stumped at simulating the IF can.

I understand how to make an IF can with two capacitors set in
resonance with the inductors in the transformer, only I'm stumped at
determining/setting the inductance values.

I've been trying to decipher multisims settings to find values for the
inductance formula:

L = N^2*(u*A)/length

Any help would be greatly appreciated. The experiment I'm looking to
simulate requires trials through stages for way more components than I
have.

This is not a multisim specific problem. Its a generic spice transformer
".subckt" one. You need to set the values of a typical transformer
model, e.g.

..SUBCKT Transformer 1 2 3 4
L1 1 2 100.00u
L2 3 4 100.00u
c1 1 2 100p
c2 3 4 100p
K1 L1 L2 0.99
..ends

K is a mutal coupling facter.

Kevin Aylward
salesEXTRACT@anasoft.co.uk
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
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