Jakie zasilanie dla dysku twardego - przekaznik czy klucz elektroniczny?

Sun Mar 14, 2004 7:18 am   

Mam potrzebe zasilenia dysku twardego podlaczonego do komputera z
zewnetrznego zasilacza.
Czy wie ktos z Was ktore koncowki zasilania sa wykorzystywane przez
dysk. Czy komputer uzywa odlaczenie zailania od dysku, czy tylko poprzez
komendy sterujace przez IDE?
Co lepiej zastosowac, przekaznik czy klucz elektroniczny? Prad prawie
1A. Jakie przekazniki, ewentualnie klucze byscie polecili.

Deltak

Sun Mar 14, 2004 3:28 pm   

Straszne zamotane
Dysk jest zasilany przez czteropinowe zlacze umieszczone obok zlacza IDE.
Potrzebuje on +12V, +5V i GND.
Wylaczenie dysku - np. stan uspienia systemu, jest realizowane przez sygnal
sterujacy podany na odpowiedni pin zlacza IDE - od razu mówie, ze nie wiem
który i sterownik dysku wylacza silnik talerzy i sterowanie glowicami.
Napiecie z zasilacza dochodzi do dysku caly czas.

Do wylaczania napiecia zasilajacego mozna uzyc kluczy tranzystorowych, które
moga przewodzic prad zasilania.

GM

Sun Mar 14, 2004 5:24 pm   

Witam,


Bo to nie jest pin, tylko cala grupa pinow
Zeby dysk uspic trzeba wyslac do niego komende, zupelnie taka jak kazda inna
(odczyt, zapis, pobranie parametrow etc) - dobrze jest sie przed uspieniem
dowiedziec, czy ten dysk to potrafi (IDENTIFY DEVICE). W kazdym razie
zadanie juz nie jest takie trywialne jak podciagniecie jakiegos pinu do
zasilania, czy masy. Gdyby co sluze specyfikacja IDE/ATA.

Co do pierwotnego pytania - zupelnie sie zgadzam - zasilanie to +5 i +12V,
jaki prad to ciagnie to nawet na dysku powinno pisac.

Pozdrawiam

Piotrek

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