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Alternate Power DC-IN on the Euler Bus also with PI filter for batt operation
MarkHaysHarris777
Professor of The Pine
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#12
07-29-2017, 05:44 PM
         


The pics above are a rework of the PI filter on my PineA64 desk board.  In this case the schematic has been modified to have two caps in parallel on either side of the inductor, which on this board was wound by hand.


         


The pics above are the final mod including bleed resistor and indicator LED.  These are the larger 5mm LED(s) with ballast for 18ma.

   


The last pic above is the PI filter installed and running on the PineA64 desk board, showing the proper connection to the euler bus pin(4  +5v) and pin(6  ground).
marcushh777    Cool

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RE: Alternate Power DC-IN on the Euler Bus also with PI filter for batt operation - by MarkHaysHarris777 - 07-29-2017, 05:44 PM

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