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luc

220~110~

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ce metoda se foloseste ptr aceasta conversie...am vazut la cineva o priza adusa din america si ..am devenit curios.chestia era ca priza aceea ducea circa 500w fara probleme si fara radiatoare..deci arata in principiu ca o priza prelungitor cu 5iesiri obsnuita la dimensiuni

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Am vazut si eu una gen triplustecher, foarte mica. E bazata pe schema clasica de variator de tensiune cu triace/tiristoare care merge prin deschiderea circuitului doar pe o "felie" de semialternanta a sinusoidei si asa scade valoarea efectiva. Merge garantat doar pe sarcina rezistiva, pe inductive mari tinde sa faca poc. Alte posibilitati de realizare :- Daca ar avea traf de 500W ar iesi mult mai mare,- Sincer ma indoiesc ca ar avea sursa in comutatie , pentru ca ar iesi mult mai scumpa !

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