Re: Drive logic/motor power supply
- From: "Mr. J D" <JedOs86@xxxxxxxxx>
- Date: 31 Aug 2006 12:46:05 -0700
FyberOptic wrote:
Hiya, I was considering adding either a floppy and/or hard drive into a
project I'm working on, and since either requires 12v to run the
motors, I got to wondering about something. Are the logic and motor
components of such a drive totally isolated from one another? I mean,
if I want to power the logic board of a drive from the power source of
the project itself, but I want to power the motor from an independent
external source, is this possible without frying the other side? One
would think this would be the case, but I thought it's best to confirm
before I start sticking things together!
Reread your question, it seems you WANT to use two different power
supplys. Even though this isnt the best way, actually the wrong way (if
you are not using a PSU, which provides the reg +5v already), Your not
going to mess up anything, it should work perfectly fine. But as I said
before there is no need for 2 different supplys. If you add a +5V
Regulator to the +12V Line, the motor will still get +12V and the Logic
gates will still get a regulated +5V. Regulator only need sub mA
currents, so the amount of current you can use is still "virtually" the
same.
.
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- Drive logic/motor power supply
- From: FyberOptic
- Drive logic/motor power supply
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