Irf540/irf9540 Amplifiers Schematic Collection

zox2003 · 25th March 2005, 03:41 AM

I want to start this tread.It will make easy for everyone to find WORKING amplifier schematic.

SO:

This is a place to post WORKING VERSION of amplifier made with IRF 540 and 9540 FET's.
You will guys help me and another people a lot.
Also you can post your opinions about that amp.
I know that there is probably a lot of schematics all around this forum,but let's put everything in one basket,

THANKS.

Upupa Epops · 25th March 2005, 03:57 AM

Something like this ? 60 W / 8 Ohm, 100 W / 4 Ohm, THD below 0.01 % 20 - 20 kHz, IMD 0.002 %, SNR more than 120 dB, SR 100 V / microsec. , 2 Hz - 300 kHz full output BW . Have you better ?

mastertech · 25th March 2005, 03:58 AM

That is a great idea zox2003

www.passdiy.com
www.audiosector.com
www.diyaudio.com
www.mastertech.com

MikeB · 25th March 2005, 11:32 AM

Solid state only, or also ClassD ? I am just working on one using
these fets...

Upupa Epops · 25th March 2005, 11:40 AM

We take all, Mike

. Classical solution isn't still interesting for you ?

What a pity, your circuit was good

.

MikeB · 25th March 2005, 11:53 AM

Quote:

Originally posted by Upupa Epops
We take all, Mike . Classical solution isn't still interesting for you ? What a pity, your circuit was good .

Oh, i am still interested in analog designs, they are much simpler to contruct...
I was curious, and needed to make a trip into switching amps,
now i know how "bad" my circuit was. Except the bass the ClassD fully
outperformed my other amps, with the trebles i am not sure...
Seems that a slewrate of 1400V/uS has some advantage ?

Mike

Upupa Epops · 25th March 2005, 12:13 PM

1400 V ? How is tact frequency ?

MikeB · 25th March 2005, 12:22 PM

Frequency is only 300khz, but all stages need to be able to follow rise/fall-time (~50ns,+/-36volts swing).
But we should move this discussion out of this thread, per mail ?

Upupa Epops · 25th March 2005, 12:27 PM

OK, send me something, thanks

.

zox2003 · 25th March 2005, 12:45 PM

OK guys where schematics are?

Let's do it...

UPOPA- Thanks for support.Have you build this one and how sounds.Any problems with amp.
What is about PART LIST?

25th March 2005, 03:41 AM	#1
zox2003 diyAudio Member Join Date: Nov 2004 Location: usa	Irf540/irf9540 Amplifiers Schematic Collection I want to start this tread.It will make easy for everyone to find WORKING amplifier schematic. SO: This is a place to post WORKING VERSION of amplifier made with IRF 540 and 9540 FET's. You will guys help me and another people a lot. Also you can post your opinions about that amp. I know that there is probably a lot of schematics all around this forum,but let's put everything in one basket, THANKS.

25th March 2005, 12:45 PM	#10
zox2003 diyAudio Member Join Date: Nov 2004 Location: usa	OK Let's Start OK guys where schematics are? Let's do it... UPOPA- Thanks for support.Have you build this one and how sounds.Any problems with amp. What is about PART LIST?

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25th March 2005, 03:58 AM	#3
mastertech Banned Join Date: Mar 2005 Location: Australia	That is a great idea zox2003 www.passdiy.com www.audiosector.com www.diyaudio.com www.mastertech.com

25th March 2005, 11:32 AM	#4
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	Solid state only, or also ClassD ? I am just working on one using these fets...

25th March 2005, 11:40 AM	#5
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	We take all, Mike . Classical solution isn't still interesting for you ? What a pity, your circuit was good .

25th March 2005, 12:13 PM	#7
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	1400 V ? How is tact frequency ?

25th March 2005, 12:22 PM	#8
MikeB diyAudio Member Join Date: Apr 2004 Location: Gütersloh	Frequency is only 300khz, but all stages need to be able to follow rise/fall-time (~50ns,+/-36volts swing). But we should move this discussion out of this thread, per mail ?

25th March 2005, 12:27 PM	#9
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	OK, send me something, thanks .

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