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Schimbarea sursei de curent la un device.


Guest Insan3k
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Guest Insan3k

Am un aparat "AbGymnic" care functioneaza cu o baterie CR2032 de 3Volti si pentru a evita inlocuirea bateriilor des, vreau sa il fac sa isi traga curent de la priza. Intrebarea mea, este, daca gasesc un incarcator de telefon mobil, cu output-ul de un voltaj apropiat, ar face fata incarcatorul? Ca amperaj si ce i-o mai trebui ca sa faca ce face o baterie dintr-aia.

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O baterie Lithium Ion CR2032 are 3 volti si o capacitate de aproximativ 220 mAh. Un alimentator cu o tensiune de 3.6 volti si o capacitate de 300 mA, ar fi bun. Eventual poti pune un rezistor in serie de 2.2 ohmi. Daca alimentatorul debiteaza un curent mai mare, se poate pune si un rezistor de o valoare mai mica, desi nu ar avea rost.L.E.: puterea rezistorului recomand sa fie de 0.5 W

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