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microjean

Amp 5.1 canale versiunea numero due

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Saliu!Revin dupa o perioada de vizite sporadice pe forum cu o noua versiune de amplificator pe 6 canale cu selector de 2x6 canale (astfel sa poti cupla ba PC-ul, ba DVD player-ul). Amplificatoarele sunt, ca si in versiunea precedenta, 2xLM4781 (3x30W) iar cele doua perechi de intrari pe 6 canale sunt cuplate cu 3 relee dublu-contact. Noutatea consta in folosirea a 2 randuri de circuite de volum. Fiecare canal se regleaza independent printr-un canal al 2xLM1973 iar 'masterul' e un AD5206 care da simultan in toate. Am facut-o din motive de software mai simplu (a se citi lene) in calcularea volumului global in lipsa unui control master.Iata in attachment cablajul in OrCAD. Daca aveti sugestii spuneti pana nu-l duc la facut!

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Deocamdata e prototip. Daca va fi de vanzare o voi scoate numai sub forma de kit, cuprinzand controllerul programat (si lipit) si PCB-urile.Daca merita o sa fac si o versiune de cablaj pentru soclu DIL40 pentru controller.

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Citisem postul de cand a aparut si am uitat de ...Orcad. Mi-a placut cum arata pcb ...si... asta e. :toimonster: :prayer:

 

Felicitari totusi pentru realizare. LM4781 in Romania?

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Superb cablajul. De unde ati luat AD5206? Incerc sa gasesc componente de la AD in Romania si n-am deloc succes.

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LM4781 in .ro vine (venea) prin politica de "free samples" de la National Semiconductors, iar AD5206 il am de pe la forurile superioare :yawinkle:Mersi pentru aprecieri!

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