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Successors for V-FET SONY-Yamaha-TOKIN  2SJ28, 2SJ18/2SK60, 2SJ26/2SK76 and 2SK180
Successors for V-FET SONY-Yamaha-TOKIN  2SJ28, 2SJ18/2SK60, 2SJ26/2SK76 and 2SK180
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Old 5th February 2012, 03:31 PM   #41
scooperman is offline scooperman  United States
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Join Date: May 2005
Location: south Florida
Originally Posted by kenpeter View Post
I'm not entirely sure this is even possible, but I'll bounce it off the wall and see what sticks anyhow...

What if you abuse a 4 terminal MOSFET ...

Apologies, just happened to see this old post today. Because I wasn't paying close attention while reading, my first thought of "four terminal MOSFET" was a SENSEFET, the old Moto MTP10xxx parts that I used to make some isolated solid state relays with zero-cross turn on and turn off. Then I realized you were talking about FETs with a separate substrate pin. Then I started wondering about those Moto parts again...what could I do with that current sense terminal... measure a portion of the output current, compare that with a tube model, feed the difference back to the drive. Seems like someone would have tried by now, maybe Pritchard, but can't find anything.
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Old 27th February 2012, 04:07 PM   #42
tiefbassuebertr is offline tiefbassuebertr  Germany
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Join Date: Jul 2005
Location: D-55629 Schwarzerden
Originally Posted by tiefbassuebertr View Post
A manufactur of such military microwave devices would be in the best position, this V-FETs reintroduce. Tokin or Lovoltech e. g. An other name for V-FET are "Static Induction Transistor" see about
What actually happened with the old wafer production equipment and documantations by Sony and NEC?
Are there any news ?

The mentioned link is death in the meantime. The title of that paper was follow:
"Modeling of a GaN based Static Induction Transistor"
Authors: Gabriela E. Buneaa1, S.T. Dunhama and T.D. Moustakasa
- go to
Cambridge Journals Online - Abstract

more URLs:

Last edited by tiefbassuebertr; 27th February 2012 at 04:10 PM.
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