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Dioda zener


Guest exterminatorultv

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Cum adica "dioda zener" de la "optocuplor" ?Dioda zener are proprietatea sa mentina tensiunea constanta la borne, iar un optocuplor e format dintr-un LED si un fototranzistor (sau fotodioda) separate galvanic.Sunt doua dispozitive fara nici o legatura intre ele.

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Guest exterminatorultv

cum se inlocuieste aceasta dioda zener de la optocuplor.

nu e nici un zenner acolo . se inlocuieste optocuplorul cu altul nou si gata .
Multumesc ''tovarase'',scurt si la subiect :da
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Guest exterminatorultv

Daca intrebarea are legatura cu

viewtopic.php?f=17&t=164118&start=10

ti s-a sugerat schimbarea diodei zener din primar SI a optocuplorului ,

nu a diodei zener DIN optocuplor.

Da,la aceasta e intrebarea.Si,acum inca o informatie as dori de la dvs,anume,dioda care se va monta trebuie sa aibe notatile intocmai cu cea veche,sau dupa ce criterii ma iau?Multumesc!
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