[sdiy] Re: Power Supply PCB
somnium7 at gmail.com
Tue Mar 4 22:11:05 CET 2008
Here is a screen-grab of the design so far. Still kinda ugly...
On Tue, Mar 4, 2008 at 3:08 PM, mike ruberto <somnium7 at gmail.com> wrote:
> From my recent experience with the PSU of Doom I have designed a new
> PSU unit which is the functional equivalent of that one with my added
> upgrades. I am designing the PCB now and it's almost finished.
> This unit will be capable of any split-rail voltage via programming
> with zener diodes. Output voltage can be calculated as Vz + 1.25 + 0.6
> and I included options to use extra diodes or LEDs to help getting the
> target voltage easier.
> The PSU can be built with a pass transistor stage for a maximum
> current up to 4 amps. Or the 3 pin regulator can be used on it's own
> for a maximum of 1.5A.
> I attempted to incorporate all the "quiet running" practices I
> researched online including separate ground paths for the regulator
> adjustment network.
> I am going to run PCBs of this for myself. If there is any interest I
> can assemble a group-buy on these PCBs.
> This time I will play it smart though and get a test run of PCBs made
> before the main order.
> As before, let me know off list if you are interested. I'll try to
> post some technical details later on.
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