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Reglarea tensiunii la surse cu 2 pot.


Guest danyelo
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Guest danyelo

Buna tuturor. Am o intrebare simpla si banala pentru unii, dar cu batai de cap pt mine. Am observat ca sursele profesionale de tensiune au 2 potentiometre pentru reglaj. Unul ii pentru cursa "mare" si unu pt "finete". Am incercat o idee venita in cap, inserierea a 2 potentiometre. Unu de 50k si unu de 1k. Am reusit "isprava" dar nu e ceea ce m-am asteptat. Nu este chiar asa fin. Intrebarea intrebatoare: ce ar trebui sa adaug pe langa cele 2 potentiometre pentru a fi cursa mult mai "fina" si exacta? De exemplu sa regrele la zecimi tensiunea sau din jumatate in jumatate de volt?

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Guest danyelo

Am incercat. Dar cand il introduc in circuit imi da voltaj maxim. nu se intampla nimic. la scoala, unde am vazut acele surse, nu sunt potentiometre multiturn. de asta am intrebat si am incercat si eu. Daca erau stiam ce trebuie sa fac. dar multumesc pentru raspuns.

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