carpenter said:
Gain dropped by half on source follower? Hahahah!
Hi, Capenter,
What about this . . . ? X-fied . . . ?
>><<
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flg said:Can you do that
Don't want to be to positive
I'm afraid you shot right over my head (your comment that is).
I figured out a way to increase jfet current--I think...
Sim says it went from 1.8 amps to 3.2 amps. There is a small voltage penalty. One could always increase overall voltage to accommodate the voltage shift.
I'm not certain if it's permissible to create a virtual ground.
Sim says it went from 1.8 amps to 3.2 amps. There is a small voltage penalty. One could always increase overall voltage to accommodate the voltage shift.
I'm not certain if it's permissible to create a virtual ground.
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Hi carpenter,
while your circuit certainly looks nice, it won't work outside spice.
The LU is essentially a low pinchoff voltage part, means that for low VDS you cannot hit the gate with more than about -0.6V (VGS). 2 reasons for this: first it's no longer linear below that (it's already off), second the gate current starts to get really big for large VGS and that loads your source.
But don't let you stop that to play with that part!
Have fun, Hannes
while your circuit certainly looks nice, it won't work outside spice.
The LU is essentially a low pinchoff voltage part, means that for low VDS you cannot hit the gate with more than about -0.6V (VGS). 2 reasons for this: first it's no longer linear below that (it's already off), second the gate current starts to get really big for large VGS and that loads your source.
But don't let you stop that to play with that part!
Have fun, Hannes
h_a said:Hi carpenter,
while your circuit certainly looks nice, it won't work outside spice.
The LU is essentially a low pinchoff voltage part, means that for low VDS you cannot hit the gate with more than about -0.6V (VGS). 2 reasons for this: first it's no longer linear below that (it's already off), second the gate current starts to get really big for large VGS and that loads your source.
But don't let you stop that to play with that part!
Have fun, Hannes
I have no idea about what I am talking about here, but if you hit the gate with -0,6V or more , the source also goes 0,6V or more negative, and keep the gate to source voltage the same? (well, allmost, as the gain is less than unity.)
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