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Echivalent


quinn

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Vad ca mai in toate schemele de aprindere electronica comutatorul este omniprezentul bu526.De ce ?Este cel mai indicat ,un bu208 e mai slab?Voi ce recomandati in lipsa lui?Va multumesc!L.E. Eventual un mos-fet daca e mai eficient!

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BU208 este mai "slab", poti sa pui un BU508, suporta tensiune mai mare, dar are beta mai mic, trebuie ales unul cu beta(factor de amplificare curent) >15,BU508D are si dioda in antiparalel, numai ca capsula e alta...BU526 are 400V/8A si beta minim de 15Un MOS este mai eficient si mai rapid, dar la grila are nevoie de tensiune min.10V, este sensibil la tensiunea grila-sursa, daca ai un varf de peste 20V, se strapunge.Pt. ca nu cunosc schema, ma abtin de o parere pro sau contra.

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