New newbie question!

Diogo · 12th August 2002, 07:12 PM

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, 09:40 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, 02:06 AM

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

hitsware · 13th August 2002, 02:13 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, 09:39 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, 12:19 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, 03:51 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, 08:39 PM

Thanks again for your help fellows!

12th August 2002, 07:12 PM	#1
Diogo diyAudio Member Join Date: Aug 2002 Location: Brazil	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?

13th August 2002, 12:19 PM	#6
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden	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. __________________ /Per-Anders (my first name) or P-A as my friends call me Group buy: DCT03 DC trap for big toroidal transformers. Sign up for interest HERE. 35 pcb's in interest.

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12th August 2002, 09:40 PM	#2
hitsware diyAudio Member Join Date: Mar 2002	http://niufrm.physics.niu.edu/~label...75_lect112.pdf scroll down to source follower.....basically the circuit driving the gate is the "driver"

13th August 2002, 02:06 AM	#3
Diogo diyAudio Member Join Date: Aug 2002 Location: Brazil	That pdf has been very helpfull, thank you hitsware! What else do you have?

13th August 2002, 09:39 AM	#5
Diogo diyAudio Member Join Date: Aug 2002 Location: Brazil	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!

13th August 2002, 08:39 PM	#8
Diogo diyAudio Member Join Date: Aug 2002 Location: Brazil	Thanks again for your help fellows!