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Power supply 5.1V 2.5A - Raspberry Pi Official
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Descriere
Varianta scurta:
Aceasta sursa de alimentare a fost testata si asigura tensiunea optima pentru Raspberry Pi.
Varianta lunga:
Raspberry Pi trebuie sa primeasca la intrare o tensiune intre 4.75V and 5.25V. Sursele normale de tensiune pot avea variatii destul de mari din fabrica, intre 4.3 si 5.8V iar cablul de alimentare USB are la randul lui o rezistenta si deci o cadere de tensiune. Astfel, la Raspberry Pi poate ajunge o tensiune intre 4.1 si 5.6V. Pentru marea majoritate a dispozitivelor, aceasta variatie de tensiune nu este o problema dar Raspberry Pi este mai special.
Practic, folosind alta sursa de alimentare, pot aparea probleme de under sau over-voltage.