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mic capsule simulation code...   Message List  
Reply | Forward Message #10572 of 12022 |
Re: mic capsule simulation code...

--- In micbuilders@yahoogroups.com, Nick Zuccaro <nmz77@...> wrote:
>
> >>
> That and this was a missing part of the puzzle...i have already
designed a few mic pres and know what the front ends of these look
like, only this time around as a load though....
>
> Nick
>
Just don't forget reciprocity, that is the displacement varies
inversely with frequency. Or the other way around a charged vibrating
capacitor at constant peak displacement has an output that goes up
with frequency.




Wed Jan 14, 2009 5:01 pm

userno232000
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Message #10572 of 12022 |
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i finally found a way to simulate a variable capacitor (mic capsule!) in SPICE using a voltage controlled admittance: * Variable admittance: Yout = Yref * V *...
Nick Zuccaro
nmz77
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Jan 13, 2009
3:33 pm

Have you read this paper? (See page 558) http://users.ece.gatech.edu/~mleach/papers/spice_electro.pdf Would be interesting to add the noise caused by Brownian...
picnet2
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Jan 13, 2009
4:12 pm

... do is be able to call a subcircuit and possibly make a symbol for it. it uses a grounded reference capacitor so you can modify it for use with almost any...
userno232000
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Jan 14, 2009
2:58 pm

... That reference to the paper by Prof. Leach (section 9) gives a complete condensor mic model but very few companies publish any detailed parameters. You...
Nick Zuccaro
nmz77
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Jan 14, 2009
4:29 pm

... designed a few mic pres and know what the front ends of these look like, only this time around as a load though.... ... Just don't forget reciprocity, that...
userno232000
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Jan 14, 2009
5:01 pm
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