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Guest Boby

Cum calculez si proiectez o sursa in comutatie cu tranzistoa

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Guest Boby

Dar sa fie cu tranzistoare bipolare ajutati+ma va rog

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pai intai fi complet in cererea ta, si anume ce fel de sursa ? coboratoare / ridicatoare de tensiune si de la ce la ce tensiune. Si de ce numai cu tranzistoare cat timp un TL494 sau un SG3525 sunt sub 2 lei, asta pentru partea de comanda.

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Guest Boby

as dori o sursa coboratoare de la 220 volti

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Guest mister_rf

Exista cateva topicuri care trateaza acest subiect:

http://www.elforum.info/viewtopic.php?t=7596

http://www.elforum.info/viewtopic.php?t=9848

http://www.elforum.info/viewtopic.php?t=8637

 

citeste si afla cate ceva despre aceste surse in comutatie.

 

Totusi cererea ta nu este completa. O sursa de la 220Vac la ce tensiune? Aici lipsesc datele esentiale: o tensiune si un curent maxim disponibil ...

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