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[T] - Capacité USB,...
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[T] - Capacité USB, filtre Low ESR, pour périphérique USB énergivore

Reference: USB-CAP

This product is being translated

Capacité USB pour périphérique gourmand en courant

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[T] - Capacité USB, filtre Low ESR, pour périphérique USB énergivore

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Capacité USB pour périphérique gourmand en courant

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Description

Le modem USB 3G (HSDPA) , comme certains autres périphériques USB, peuvent se montrer très énergivore et faire de tels appels de courant que la tension peu chuter sur un nano-ordinateur/matériel embarqué comme OlinuXino ou Rapsberry-Pi.

A titre d'exemple, le processus d'initialisation du modem USB 3G (HSDPA) peut nécessiter des pointes de courant allant jusqu'à 2 ampères. Si l'hôte ne sait pas offrir cette pointe de courant sur demande c'est la réinitialisation sauvage assurée (votre carte redémarrera ou deviendra instable).

C'est pour cela qu'Olimex à conçu l'USB-CAP, la carte s'insère sur le port USB-A, elle contient 2 capacités de 1000µF (avec un "low ESR") permettant de fournir ces pointes de courant. Vous branchez votre périphérique USB de l'autre côté de l'USB CAP.

[T] - Capacité USB, filtre Low ESR, pour périphérique USB énergivore

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