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Old 10th March 2006, 08:55 AM   #1
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Default Modulated cascode and positive feedback?

I have been thinking a lot about modulated cascode, and I wonder if you can simulate a triode curve by modulating a normal fet or bipolare cascode with some positive feedback???
Something like this?
Click the image to open in full size.
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Old 10th March 2006, 06:09 PM   #2
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I don't see the nonlinearity of the triode there - just that of
the Mosfet.
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Old 11th March 2006, 01:42 PM   #3
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Quote:
I don't see the nonlinearity of the triode there - just that of the Mosfet
My thinking was that modulating the cascode with positive feedback would create an exponential curve..
I was just wondering how to create a triod like curve but without J-fets or triods. Can it be done???
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Old 12th March 2006, 07:28 PM   #4
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Hi Circlomanen,

if you want to play try this idea. It makes nices Triode curves.

Bye
Emil
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Old 13th March 2006, 01:14 PM   #5
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Thank you!! Thats nice with Lovoltechs, but I would like to find a way to create triode like transfercurves with only HexFets. (IRFPXXX) I dont know if that is doable at all but at least its a nice problem to work on.

Johannes.
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