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T O P I C    R E V I E W
ahly20 Posted - Aug 19 2005 : 7:59:15 PM
hi all

i am not an engineering but i know a little about stuff
i realy need a converter to run normal cd-rom in my car
so if anyone have any info. about the wanted circuit plz answer.
by the way it will be better if it doesnt need a heat sinker

thnx
[i]
3   L A T E S T    R E P L I E S    (Newest First)
Aaron Cake Posted - Aug 26 2005 : 09:07:33 AM
A device only draws as much current as it needs. Most CDROMs are under 1A.
ahly20 Posted - Aug 25 2005 : 11:29:43 AM
thanks for ur help
such a circuit will work but what about the amper wont it be difrent from what the cd-rom runs with
Aaron Cake Posted - Aug 22 2005 : 09:18:52 AM
We've covered this before. A search for "CDROM car" or variations should turn it up.

But the summary is that a CDROM needs 5V and 12V. You can make 5V easily (check out the "CD Player Adapter For Car" on the circuits page) and likely connect the car's 12V directly. You MAY find you need to regulate it down as the car's output is actually closer to 14V, but using a similar scheme to the 5V will work fine.

Keep in mind that you need to choose a CDROM with controls on the front since controlling it through the IDE bus is a LOT more complicated.

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