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donpetru

Scheme de amplificatoare audio

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Un amplificator audio Hi-Fi simplu. Finali se pot inlocui cu alti finali complementari "mai rapizi", ex. 2SA1943, 2SC5200 sau capsula metalica TO-3 MJ15023 si MJ15024.

amp.jpg

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In jur de 100w cu MJ11015 si MJ11016

post-283-1204821927_thumb.jpg

post-283-1204822274_thumb.png

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Am mai gasit pe net o schema de amplificator audio de 1000W = AV1000. O sa gasiti in arhiva si niste scheme interesante de cliping, protectii la DC si altele (de fapt, in acelasi PDF). Pot sa spun ca este cel mai misto amplificator de 1kW care l-am vazut pana acum, cam complex dar merge.

Amplifier.part1.rar

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Rasfoind putin web-ul am mai gasit trei scheme de amplificatoare audio care ar merita postate first.gif

 

Sa incep:

 

1. Amplificator audio LYNX, 275W in 4 Ohmi, THD aprox.0,001%, raportul semnal zgomot mai bun de 110dB, banda de frecventa ...300kHz.

LYNX_Audio_Amplifier_275W_4_Ohmi.pdf

 

2. Amplificator audio NAP:

post-4-1208547948_thumb.png

 

3. Amplificator audio FIDEK:

fidek.pdf

 

Cum spun englezi ? ENJOY

 

:d6: first.gif

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un amplificator care suna foarte bine.am folosit irfp240 si irfp9240..atentie,daca folositi cablajul original,pentru irfp-uri,trebuie sa inversati drena cu sursa pe cablaj!!!!

schema.pdf

cablaj.pdf

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Cateva scheme de amplifuri gasiti si pe un site diy audio turcesc:

http://www.diyaudiotr.com/index.php

Spor la rasfoit.

 

p.s. Mai sa fie, si turcii domne au site diyaudio !!! :biggrin: Si forum... pacat nu stiu turceste ca tare as fi vrut sa stiu ce se discuta acolo. sad.gif

 

:h8:

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Amplificator audio "simplu" in clasa B:

Class_B_audio_amplifier.pdf

 

1. A Simple MOSFET Audio Power Amplifier Design

http://www.angelfire.com/ab3/mjramp/simple1.html

 

2. The MJR-7 Mosfet Power Amplifier. Updated 11-Oct-2007

http://www.angelfire.com/ab3/mjramp/amp7.html

 

3. MJR-8 Mosfet Audio Power Amplifier.

http://www.angelfire.com/ab3/mjramp/amp8.html

 

4. A New Audio Amplifier Circuit Design.

http://www.angelfire.com/ab3/mjramp/pagefour.html

 

Si o colectie de tutoriale despre parametrii principali, constructia si functionarea amplificatoarelor audio:

http://www.angelfire.com/ab3/mjramp/designing.html

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