IP Post 7: The Raspberry Pi Power Analysis featuring the Tektronix Scope

RE: IP Post 7: The Raspberry Pi Power Analysis featuring the Tektronix Scope

mcb1 — Fri, 22 Aug 2014 22:48:45 GMT

I have downloaded the video ... nice job.

I would add another probe to measure the voltage across the Pi, since we've seen numerous supplies behave incorrectly despite their current rating.

Having just completed the Wireless Charging Beyond the Phone Challenge, this would be a good candidate to add it to it.

The kits we received were capable of 1Amp at 5v, which should be enough to run the RPi with a little spare to charge it.

Edurado did a sterling job of producing boards for his (sadly his TX unit didn't work but the board looks right) but his receiver did.

Waterproofing marine equipment - 07 - Receiver Design Considerations

Waterproofing marine equipment -11- Receiver board assembly and testing

Waterproofing marine equipment - 10 - Buck Boost Converter

Waterproofing marine equipment - 08 - Transmitter Design Considerations

Mark

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RE: IP Post 7: The Raspberry Pi Power Analysis featuring the Tektronix Scope

ipv1 — Fri, 22 Aug 2014 07:14:21 GMT

Does anybody watch the video?

RE: IP Post 7: The Raspberry Pi Power Analysis featuring the Tektronix Scope

ravi_butani — Fri, 22 Aug 2014 07:01:02 GMT

congratulation for new Scope... I am still WAITING for the same..[View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-8c710270-7051-4967-a98a-572e604c24b8/contentimage_5F00_2.png:16:16]

RE: IP Post 7: The Raspberry Pi Power Analysis featuring the Tektronix Scope

ravi_butani — Fri, 22 Aug 2014 06:59:06 GMT

Wifi takes only 60mA I doubt..!! the spikes are bit high to get actual readings you need to turn off any filtering on scope and it needs very small time base i.e. say 1ms/div and trigger needs to be high then normal readings to capture such events accurately...