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schema daca se poate

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salut vas ruga daca se poate sami dati o schema de variator de tensiune de la 0 la 12V sa fie cu tranzistoare :smt006 am dat search dar nam gasit ce imi trebuie amc autat si pe gugal de mi sa prajit creeri :smt005 :smt006

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CC.am incercat varianta cu un singur pot dar parca nam asa mare plaja de reglaj de la min pana la mijloc merge ok dar dupa ce trece de mijloc ramane turatia constanta.Vreau sal folosesc la reglarea unor motorase si trebuie sa aibe plaja cat de cat mare pt ca din motorasele alea vor iesi niste forme proiectate pe un perete(un mic efect laser DiY) :rolleyes: :rolleyes:

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Nu conteaza cu ce il faci daca dupa un prag "motorasele" raman la aceaasi turatie aia e Unominal si basta. Singura diferenta intre potentiometru si circuitul cu LM e curentul suportat si faptul ca daca nu e deja stabilizata din aval , LM-ul si stabilizeaza tensiune de iesire, plaja de variatie tot aia adica tot 0-12V la pot si 1,2-12V la LM.

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