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Guest DJ-ASISTANCE

ajutor la ipa400

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Guest DJ-ASISTANCE

as vrea sa stiu ce valoare a curentului de mers in gol are un modul de ipa400 miam facut 2 canale shi vreau sa stiu valoare pe o pereche de finali sau pe intrg modulul

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Guest DJ-ASISTANCE

deci cum zice shi av1000 maxim 200mA la ipa400/modul shi maxim 350mA la ipa800/modul este adevara vreau shi alte parareri de la cei care au facut cam cit iau dat multumesc

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autorul recomanda 100mA / pereche.Ti-am zis. daca faci sonorizari n-are sens sa exagerezi pt ca nu castigi nimic decat grade in plus la radiator. Si 10mA ajung in cazul asta cat sa nu simti ca se aude prost.In final urechea decide.Nu e fix 200mA pe modul deoarece si etajele de dinainte consuma curent.Tensiunea (I=U/R) o vei masura pe rezistentele de putere. deci vei masura curentul prin fiecare tranzistor in parte. N-are sens sa te complici sa inseriezi un ampermetru.

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Daca am zis maxim 50 mA pe perechea de finali, inseamna ca poti alege orice valoare pina acolo, urmarind ca sunetul sa fie clar la semnal mic si radiatorul sa nu se incinga. Curentul prea mic se manifesta prin sunet spart, gîjîit, iar o valoare prea mare duce la incingerea finalilor inutil.Bafta!

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