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Old 1st October 2004, 02:41 AM   #1
j.p-ni- is offline j.p-ni-  Brazil
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Location: sampa
Question power amplifier mosfet

i need schematics, for mosfet amplifiers,with 100w or + .....for use in my car.....please....my english bad....i am from brazil
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Old 1st October 2004, 06:46 AM   #2
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That's OK, my spanish is bad

I found this for you:
http://www.google.ca/search?hl=en&ie...0W&btnG=Search

The reason I refer you to Google, is you can do a search in spanish

Good luck!!
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Old 1st October 2004, 07:38 AM   #3
mandat is offline mandat  Poland
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J.p-ni- or DestroyerX can you explain what language do you speak?
You mean, not me.
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Old 1st October 2004, 11:01 AM   #4
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Spanish language??? Oh my god!
Thatīs Portuguese language Geek , the native language of Brasil is portuguese, spanish is very diferent...

j.p-ni-, here have many mosfet schematics for home, for car, I donīt no, maybe, if you search on google...: http://www.audiofanatic.it/Schemi/Ti..._finaliSS.html

Cheers
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Old 1st October 2004, 12:26 PM   #5
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Quote:
Originally posted by ElectroPower
Spanish language??? Oh my god!
Thatīs Portuguese language Geek , the native language of Brasil is portuguese, spanish is very diferent...
EEEEEEEP!
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Old 1st October 2004, 03:43 PM   #6
j.p-ni- is offline j.p-ni-  Brazil
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i need amplifier simple e strong, with voltage + 30 and -30, or +....
please, because my smps the ouput voltage +30 and -30 volts....
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Old 1st October 2004, 06:47 PM   #7
mandat is offline mandat  Poland
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You can find link below with power amplifier (opamp at the input stage & complementary pair of MOSFETs at the output stage). Unfortunatelly, pages are in Polish. In the third link you can find a PCB layout. At the bottom you can find the specification of this amp. If you will be interested in, mail me and I try help you.
http://www.q-audio.pl/
http://q-audio.dis.pl/gallery/
http://www.audiostereo.pl/forum_wpis...mat=5755&p=5#k

semiconductors: OPA552AP/IRFP240 (Farchild]/IRFP9240 (I.R.)/TL431
R+C: 7 + 10
PSU: +/- 28V,
gain: +41V/V
load: 4 Ohm
quiscent current:120mA
THD+N: 0.008% (22Hz to 22kHz, P =1 to 10W)
THD+N: 0.014% (22Hz to 22kHz, P = 11 to 40 W)
THD+N: 0.6% (22Hz to 22kHz, P = 41 to 75W)
SR: +22/-18V/us
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