schematics for power mosfets?

rx7speed · 29th November 2004, 02:16 AM

I'm kinda at a loss here. trying to design a mosfet amplifier to drive at lowest a 4ohm load but cant' seem to come up with anything.

I admit I'm fairly new to electronics and have done a few preamp designs but never a power amp.

as far as design I'm trying to keep it simple and reliable.
with sound quality little worried about it but more so worried about learning from this project then anything.

want soemthign that when it goes into clipping does so soft like since it will see some duty as a guitar amp.

any help here guys?

jacco vermeulen · 29th November 2004, 07:13 PM

Why not take a look at a NAD softclipping circuit ?

ChevyAutomaticSpeed

rx7speed · 29th November 2004, 08:24 PM

trying to keep it fairly simple right now
more or less just trying to get something started to work with later

azira · 29th November 2004, 08:45 PM

Here's a couple ideas.

There's a popular JFet guitar preamp circuit floating around the net, adapt it into a power amp circuit.

Start with a Zen model and adapt from it? It's simple and straightforward place to start.

If you're looking for simple, class-A is the place to be. Not without it's trade offs.
--
Danny

29th November 2004, 02:16 AM	#1
rx7speed diyAudio Member Join Date: Oct 2004	schematics for power mosfets? I'm kinda at a loss here. trying to design a mosfet amplifier to drive at lowest a 4ohm load but cant' seem to come up with anything. I admit I'm fairly new to electronics and have done a few preamp designs but never a power amp. as far as design I'm trying to keep it simple and reliable. with sound quality little worried about it but more so worried about learning from this project then anything. want soemthign that when it goes into clipping does so soft like since it will see some duty as a guitar amp. any help here guys?

29th November 2004, 07:13 PM	#2
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Why not take a look at a NAD softclipping circuit ? ChevyAutomaticSpeed __________________ Looks like Sponge Bob has killed another thread.

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29th November 2004, 08:24 PM	#3
rx7speed diyAudio Member Join Date: Oct 2004	trying to keep it fairly simple right now more or less just trying to get something started to work with later

29th November 2004, 08:45 PM	#4
azira diyAudio Member Join Date: Dec 2003 Location: Near Seattle	Here's a couple ideas. There's a popular JFet guitar preamp circuit floating around the net, adapt it into a power amp circuit. Start with a Zen model and adapt from it? It's simple and straightforward place to start. If you're looking for simple, class-A is the place to be. Not without it's trade offs. -- Danny

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