Using 12V rail on PS

[Derk]

Ok, i'm trying to power to of my car amps in my beadroom. I am going to wire 6 computer power supplies in parralel on the 12v rail in order to get a high enough amprage. I hear in order to prevent voltage feedback you need a special diode. Were can I get one of these? And what make/model do I need? If I have my PS's disconected, then powered them than hoke up positive, then hook up ground, will this be a temporary solution to voltage feedback, or no?


Thanks!

[Super Nade]

The special diode is a zener diode. You can get them here:-
http://www.digikey.com/scripts/DkSearch/dksus.dll?Filter

But you may have to ask them for something rated at a higher wattage than the ones there or use a combination of zeners depending on the max power you hope to use.

Voltage feedback is not a simple matter. It usually involves impedance matching. These should start you off.
http://sound.westhost.com/highspeed.htm
http://www.wolcottaudio.com/WA_whitepapers.htm
http://sound.westhost.com/impedanc.htm

[Derk]

Thanks for the sites, but the first link is broke, could you just post the part number maybe.


Thanks!