@lineup, with all due respect, I am not sure why you call this a regulator. Nothing is regulated, it's a source follower (sometimes fancy-named capacitor multiplier).
There is no mechanism to regulate; to correct the gate voltage for output voltage drop.
Jan
There is no mechanism to regulate; to correct the gate voltage for output voltage drop.
Jan
Sorry.
What I call it is not so important, I think.
To me it seems to do the job pretty well.
For serious projects, people should use Salas HV shunt regulator.
What I call it is not so important, I think.
To me it seems to do the job pretty well.
For serious projects, people should use Salas HV shunt regulator.
Especially it isn't well regulated, as Jan already said. There isn't any reference to which the output voltage is compared.
Best regards!
Best regards!
Not even that. Stabilizing means regulating and also requires some reference. As Jan said, it's a source follower and capacitance multiplier and serves well as is.
In contrast to a similar BJT design, a FET's gate source voltage doesn't remain constant, not even a little bit. Correctly spoken, not even a BJT emitter follower is a regulated, stabilized PSU, but approaches it much more than any FET design due to it's »hard« base to emitter voltage.
Best regards!
In contrast to a similar BJT design, a FET's gate source voltage doesn't remain constant, not even a little bit. Correctly spoken, not even a BJT emitter follower is a regulated, stabilized PSU, but approaches it much more than any FET design due to it's »hard« base to emitter voltage.
Best regards!
I wish I could change the name of the thread.
I will see what I can do.
What would the better name be?
'Stabilizer' is one option mentioned here.
Maybe 'High voltage source follower, stabilizer and ripple eater for TUBES.'
Thread title changed per request.Thanks Lineup!
Still I was mostly joking, as I found it interesting you specify 243V (generally it is some round number...), And because about half the posts coming after a schematic are about possibilities to change it.
Best regards! Erik
After discussion mainly about the name,
is there anyone who has built this circuit?
I think my idea is not too bad.
Escpecially for the Tube-people 🙂
is there anyone who has built this circuit?
I think my idea is not too bad.
Escpecially for the Tube-people 🙂
Zener diode based “regulators” are still “regulated” compared to just an RCRC filter off the raw supply. Good enough for screen voltages or preamp stages. And the SS version is good enough to power op amps. Neither usually needs .1% or less line/load regulation.
I still call it a regulator. It walks like a duck, quacks and likes water.
I still call it a regulator. It walks like a duck, quacks and likes water.