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-   -   New newbie question! (http://www.diyaudio.com/forums/solid-state/5192-new-newbie-question.html)

Diogo 12th August 2002 08:12 PM

New newbie question!
 
Well, I know very few things about MOSFETS, but is the one I have lots of interest. I've been reading something about it, and I want to know what is a source follower, how it works, and how a mosfet driver works?

hitsware 12th August 2002 10:40 PM

http://niufrm.physics.niu.edu/~label...75_lect112.pdf

scroll down to source follower.....basically the circuit driving the gate is the "driver"

Diogo 13th August 2002 03:06 AM

That pdf has been very helpfull, thank you hitsware!
What else do you have?

hitsware 13th August 2002 03:13 AM

Quote:

Originally posted by Diogo
That pdf has been very helpfull, thank you hitsware!
What else do you have?

More on source followers?

Diogo 13th August 2002 10:39 AM

MOSFETS, I'd like to know almost everything about the use of these devices on PAs. As you know I live in Brazil witch is, unfortunlly an undeveloped country, and most of the people I know and work with have no idea of how to use it!

peranders 13th August 2002 01:19 PM

A good source for learning is the manufactures application notes and data sheets. Check also as many amps designs you can. You can learn a lot in seeing have others have done.

Go to http://www.questlink.com for searching.

One of the best in writing application notes are Hitachi and International Rectifier.

hitsware 13th August 2002 04:51 PM

Quote:

Originally posted by Diogo
MOSFETS, I'd like to know almost everything about the use of these devices on PAs. As you know I live in Brazil witch is, unfortunlly an undeveloped country, and most of the people I know and work with have no idea of how to use it!
http://users.swing.be/edwinpaij/ampli_mosfet.htm

They're usually used as source followers in the output stage. As peranders says you can do a search (I found this one under "mosfet output stage") Most of the output stages are quite similar with differing front ends.

Diogo 13th August 2002 09:39 PM

Thanks again for your help fellows!


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