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5V 3A PSU

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peterb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote peterb Quote  Post ReplyReply Direct Link To This Post Posted: 10 May 2018 at 7:44pm
I read somewhere on the Internet that the current draw by the PI was very dependant upon its application, but no numbers. This lead me to consult my build notes to remind myself what I measured when I was building my PreAmp where a PI2B is installed as a media server, it said 150 mA. However that was without it doing anything! 
This made me search for more information, particularly as I am considering an upgrade to an even more watty (is that a word?) PI 3B.
I found the following interesting articles:
and
for 3B notes.

It seems that the highest current draw occurs when PI is running a USB 3.0 SSD, with lower, but significant amounts for other USB connected devices.

Something to consider with this forums varied applications! 
Graham's 'Battleship' PSU will of course do it all, wiring permitting of course!

Peter
---------------------------------------
Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2,
Hood/Hart 30W MosFet Integrated amp.
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Graham Slee View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 10 May 2018 at 11:00pm
First load test.

Duration 90 minutes.



5 volts at 3 amps.



Heatsink temperature rise: 24C (22C ambient + 24C = 46C).

V out at 3A 5.00V
V out at 100mA 5.10V

Load regulation 2% (measured at output terminals to include wiring resistance. Not at regulator which would be a false reading).

Not simple enough for Google-Bot to understand...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BackinBlack Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2018 at 9:03am
Nice. I have a space ready and waiting.

Ian
Just listen, if it sounds good to you, enjoy it.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2018 at 6:31pm
It's not just me then!
Jon

Open mind and ears, whilst owning GSP Genera, Accession, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Ash View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2018 at 9:10pm
I'm hoping this PSU produces a really noticeable improvement to the Bitzie. Looking forward to comparing it against the Majestic.
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Ash View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 27 May 2018 at 11:18am
How is this coming along? Wink
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 27 May 2018 at 6:20pm
The prototype is with our metalworkers.
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