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5V 3A PSU |
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peterb
Senior Member Joined: 02 Feb 2017 Location: Cornwall Status: Offline Points: 332 |
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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! |
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Peter
--------------------------------------- Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2 |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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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). |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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BackinBlack
Senior Member Joined: 05 Feb 2012 Location: Hinton, N'hants Status: Online Points: 2020 |
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Nice. I have a space ready and waiting.
Ian
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Just listen, if it sounds good to you, enjoy it.
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Fatmangolf
Moderator Group Joined: 23 Dec 2009 Location: Middlesbrough Status: Offline Points: 9001 |
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It's not just me then!
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Jon
Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
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Ash
Senior Member Joined: 18 Mar 2013 Location: Dorset Status: Offline Points: 4334 |
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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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We do not see things as they are. We see things as we are.
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Ash
Senior Member Joined: 18 Mar 2013 Location: Dorset Status: Offline Points: 4334 |
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How is this coming along?
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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The prototype is with our metalworkers.
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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