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Power supplies
#1
I built a nice linear power supply using two 7805s, one for the Raspberry Pi and one for an Allo DAC. The DAC side worked fine, but a 7805 can't supply enough current for the Pi. So, I built a separate, well-filtered linear supply for the DAC and bought a 2.5 amp SMPS for the Pi. That's in place now and sounds great. I didn't think that I would like this streaming business that much, but I do. I haven't tried any of the other DACs or drivers but the stack listed below is quite musical.

Raspberry Pi 3 with 2.5 amp with SMPS
Allo Boss DAC 1.2 with regulated linear power
MoOde Audio 4.1 using the IIR filter
Lenovo Tab 3 as a controller
KT88 SE amp (ultralinear)
Transmission line speakers
Powered subs

I plan to redo my original supply with LM317s, which should deliver enough current to run th Pi.

This was fun!

Thanks,

      John
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Messages In This Thread
Power supplies - by Listener - 05-03-2018, 02:16 PM
RE: Power supplies - by Tim Curtis - 05-03-2018, 02:36 PM
RE: Power supplies - by Listener - 05-05-2018, 09:54 PM
RE: Power supplies - by Tim Curtis - 05-08-2018, 03:50 AM
RE: Power supplies - by Lizard_King - 05-25-2018, 07:04 PM
RE: Power supplies - by Listener - 07-28-2018, 12:17 AM
RE: Power supplies - by DRONE7 - 08-09-2019, 06:02 AM
RE: Power supplies - by Malefoda - 08-09-2019, 07:56 AM
RE: Power supplies - by DRONE7 - 08-09-2019, 08:04 AM

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