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vetilatoare reglabile


Kytan666

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Hai sa iti dau o solutie f simpla cu 3 trepte

 

turatie maxima: alimentezi intre firul galben (12V) si negru (0V)

mai incet: intre galben si rosu (5V) =>7V pe ventilator

si mai incet intre rosu si negru.

 

Tot montajul il faci cu un intrerupator cu 3 pozitii.

E simplu si usor, fara pierderi de energie, ca i scump curentuPosted Image

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Sharky ai uitat sa precizezi ca este vb. despre firele de alimentare galben, rosu, negru, nu cele de la ventilator, care au aceleasi culori.

 

Pentru comanda unui ventilator pe tot domeniul, trebuie sa faci un oscilator cu factor de umplere variabil. Nu e complicat, trebuie un circuit CD4093 si un tranzistor FET.

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