Irf540/irf9540 Amplifiers Schematic Collection - diyAudio
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Old 25th March 2005, 03:41 AM   #1
zox2003 is offline zox2003  United States
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Default 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.
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Old 25th March 2005, 03:57 AM   #2
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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 ?
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Old 25th March 2005, 03:58 AM   #3
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That is a great idea zox2003

www.passdiy.com
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www.mastertech.com
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Old 25th March 2005, 11:32 AM   #4
MikeB is offline MikeB  Germany
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Solid state only, or also ClassD ? I am just working on one using
these fets...
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Old 25th March 2005, 11:40 AM   #5
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We take all, Mike . Classical solution isn't still interesting for you ? What a pity, your circuit was good .
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Old 25th March 2005, 11:53 AM   #6
MikeB is offline MikeB  Germany
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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
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Old 25th March 2005, 12:13 PM   #7
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1400 V ? How is tact frequency ?
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Old 25th March 2005, 12:22 PM   #8
MikeB is offline MikeB  Germany
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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 ?
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Old 25th March 2005, 12:27 PM   #9
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OK, send me something, thanks .
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Old 25th March 2005, 12:45 PM   #10
zox2003 is offline zox2003  United States
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Default 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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