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Sursa tensiune pentru motor pas cu pas


suirammarius
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Buna ziua!As vrea sa alimentez un motor pas cu pas si nu prea ma descurc; ma refer la alimentare strict, nu la control. Acestea sunt caracteristicile:Nema23; 5,04V; 1,4AProblema e ca daca il alimentez la 5V cum incepe sa urce in turatie (peste 50-60 rpm) pierde foaaaarte mult din cuplu; pe la 80rpm se si opreste.Care ar fi solutia? Sursa constanta de curent? Recomanda cineva o schema?Va multumesc anticipat!

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M-am uitat un pic pe foaia de catalog de la integratul recomandat de tine. Am acolo o schema chiar cu L298.Am sa vad daca gasesc piesa maine dupa amiaza si o sa fac rapid o placuta si am s-o montez. Legat de schema... ce tensiune ar trebui sa aplic pe Vref ca sa limitez la cat vreau eu? (1,4A) Nu am vazut nicio formula pe acolo.Multumesc!PS Imi puteti spune un cod de diode rapide de 2A? :)

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dai de potentiometru pana motorul se opreste din bazait si gata

Bun asa! :rade:Nu prea am inteles... Cum limiteaza curentul?Asta e foaia de catalog a motorului:http://www.slidesandballscrews.com/pdf/ ... -2008B.pdfVad ca acolo ca scrie 30V si 1,4A curent constant. Oare s-a folosit aceeasi metoda? Treaba e ca nu vreau sa pierd cuplu.
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