thewax Posted June 19, 2010 Share Posted June 19, 2010 Salut sunt cam nou pe forum ca user dar vechi ca vizitator :P De curand am vazut pe youtube un filmulet in care se construieste un amplificator de 9 v si am cautat scheme si altele . Nu vreau sa scoata cine stie ce vreau sa scoata cat boxele alea care ti le da pt telefon . Poate sa fie si 2*9v adica 2 baterii de 9 v doar sa scoata ceva link catre filmulet : Multumesc Alex Link to comment Share on other sites More sharing options...
miron1947 Posted June 19, 2010 Share Posted June 19, 2010 sa scoata cat boxele alea care ti le da pt telefonTDA2822. Link to comment Share on other sites More sharing options...
marian_valcea Posted June 19, 2010 Share Posted June 19, 2010 Cel din cutie cred ca este TDA2822M pentru ca are 8 pini iar TDA2822 are 16 pini. Link to comment Share on other sites More sharing options...
Th3_uN1Qu3 Posted June 19, 2010 Share Posted June 19, 2010 Cel din cutie cred ca este TDA2822M pentru ca are 8 pini iar TDA2822 are 16 pini.Exact. Sau pentru ceva un pic mai puternic, TEA2025. Link to comment Share on other sites More sharing options...
thewax Posted June 19, 2010 Author Share Posted June 19, 2010 poi o schema ceva? Multumesc Link to comment Share on other sites More sharing options...
Th3_uN1Qu3 Posted June 19, 2010 Share Posted June 19, 2010 poi o schema ceva? MultumescDaca gugaleai 10 secunde le gaseai singur: http://www.st.com/stonline/books/pdf/docs/1464.pdf http://www.alldatasheet.com/datasheet-p ... A2025.html Link to comment Share on other sites More sharing options...
thewax Posted June 20, 2010 Author Share Posted June 20, 2010 Va multumesc multDar inca ceva ... daca as pune doua baterii de 9 v si alte piese ar scoate mai tare? Link to comment Share on other sites More sharing options...
cristian_draghiescu Posted June 20, 2010 Share Posted June 20, 2010 TEA2025 admite o tensiune maxima de alimentare de 15 V, conform datelor de catalog pe care ti le-a postat Th3_uN1Qu3, dar pe care nu ai binevoit sa le citesti ! Daca tu il alimentezi la 2 x 9 = 18 V, cam ce crezi ca se intampla ? Link to comment Share on other sites More sharing options...
thewax Posted June 20, 2010 Author Share Posted June 20, 2010 Cred eu ca se arde dar multumesc Link to comment Share on other sites More sharing options...
Mindware Posted June 20, 2010 Share Posted June 20, 2010 Hai sa iti dau un indiciu.... :smt103:Dar nu va mirosi la fel de bine... Link to comment Share on other sites More sharing options...
thewax Posted June 20, 2010 Author Share Posted June 20, 2010 Poi ce sa va zic multumesc de ajutor Link to comment Share on other sites More sharing options...
Th3_uN1Qu3 Posted June 20, 2010 Share Posted June 20, 2010 TEA2025 admite o tensiune maxima de alimentare de 15 V, conform datelor de catalog pe care ti le-a postat Th3_uN1Qu3, dar pe care nu ai binevoit sa le citesti ! Daca tu il alimentezi la 2 x 9 = 18 V, cam ce crezi ca se intampla ? Chiar nu recomand alimentarea lui TEA2025 peste 12v, aveam un minisistem 2.1 cu traf teapan care il alimenta la 15v. Integratul original a mers aproape 10 ani, dar cand a trebuit schimbat, am ars 3 integrate noi pana am prins unul care a mers la tensiunea aia. Mergeau cate 2-3 ore si poc... Oricum din bateria de 9v nu scoti tu destul curent cat sa arzi integratul, dar aia e alta mancare de peste. Link to comment Share on other sites More sharing options...
cristian_draghiescu Posted June 20, 2010 Share Posted June 20, 2010 Pai nici nu-i trebuie curent, strapungerea in tensiune ii ajunge...Se "arde" instantaneu, nici nu apuci sa aplici semnal pe intrare, fara acestaconsuma 2-3 mA. Link to comment Share on other sites More sharing options...
thewax Posted June 20, 2010 Author Share Posted June 20, 2010 Inca ceva cam toata treaba asta cam cat ar costa? Link to comment Share on other sites More sharing options...
cristian_draghiescu Posted June 20, 2010 Share Posted June 20, 2010 Depinde cate integrate arzi pana reusesti... sau pana cand renunti... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.