[sdiy] Power supply for custom Eurorack case

[Didier Leplae]

 I'm gonna go ahead and order some of these PCBs that you sent Matti. Thanks!I may or may not use the PSUs but for $2 I can order 5 of them, so why not?Is there a BOM with these? 
    On Tuesday, January 28, 2020, 02:48:03 AM EST, Matti Palm <matti.palm at gmail.com> wrote:  
 
 I made bus boards that I am happy with: https://github.com/mattip123/Eurorack-Bus-boardAnd also a simple linear PSU with LM317/LM337 that I find low noise: https://github.com/mattip123/PSU-MattiMaybe it can be of help if you use KiCad and want a starting point.
/matti
On Tue, Jan 28, 2020 at 8:12 AM Brian Willoughby <brianw at audiobanshee.com> wrote:

If you’re going to the trouble of making custom bus boards, why not just put a few extra parts on there and make a power supply? Grab a book that covers audio power supplies.

Lately, I’ve been favoring external wall warts that output AC instead of the typical DC. I then use the simply two-conductor barrel connector to feed a bog standard linear regulator. If you need multiple voltages, pull them all off the same leg.


I just bought a 7U by 104HP case myself, so I’m just getting started designing my own 1U modules. I’m still new myself, but it seems that 1U is typically 5V-powered, and intellijel seem to have simpler 2-wire 5V supply cables and connectors for the same on their power supplies. Then again, I may be missing something.

Brian


On Jan 27, 2020, at 9:51 PM, Didier Leplae via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
>> How are you handling distribution? 
> 
> I was considering making some custom bus boards as well, just to save $$. 


On Mon, Jan 27, 2020 at 10:28 PM Didier Leplae via Synth-diy <synth-diy at synth-diy.org> wrote:
> I hope this question hasn't been covered ad nauseam in the past but here goes...
> 
> I built a custom case for Eurorack that is 84 hp wide. 
> It has 7 "normal" rows plus a 1u row. (I guess that makes a total of 672 hp)
> 
> I have roughly figured I will need a power supply with @ 3A for +12V and 2A for -12V. (The 5V seems to be hardly used and yet the power supplies I've looked at have an overabundance, probably 1A would be plenty )


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