How to power Raspberry Pi from a lab power supply via USB?

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How can a Raspberry Pi be powered from a lab power supply via USB?



I have a lab power supply that can easily output 5 V/4 A and I would like
to use it to power a Raspberry Pi (version 3B and 3B+).



In theory one could attach the power directly to the +5v pin in the header, but that means bypassing the over-current and over-voltage protection provided by the USB circuitry. Thus I would like to use the USB port.



Is it enough to wire the positive and negative rails of the lab power supply to the +/- pins of a male micro USB connector?



Should the data pins be left unconnected/floating?






usb power power-supply connectors







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    up vote
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    down vote

    favorite












    How can a Raspberry Pi be powered from a lab power supply via USB?



    I have a lab power supply that can easily output 5 V/4 A and I would like
    to use it to power a Raspberry Pi (version 3B and 3B+).



    In theory one could attach the power directly to the +5v pin in the header, but that means bypassing the over-current and over-voltage protection provided by the USB circuitry. Thus I would like to use the USB port.



    Is it enough to wire the positive and negative rails of the lab power supply to the +/- pins of a male micro USB connector?



    Should the data pins be left unconnected/floating?






    usb power power-supply connectors







    share|improve this question























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      How can a Raspberry Pi be powered from a lab power supply via USB?



      I have a lab power supply that can easily output 5 V/4 A and I would like
      to use it to power a Raspberry Pi (version 3B and 3B+).



      In theory one could attach the power directly to the +5v pin in the header, but that means bypassing the over-current and over-voltage protection provided by the USB circuitry. Thus I would like to use the USB port.



      Is it enough to wire the positive and negative rails of the lab power supply to the +/- pins of a male micro USB connector?



      Should the data pins be left unconnected/floating?






      usb power power-supply connectors







      share|improve this question













      How can a Raspberry Pi be powered from a lab power supply via USB?



      I have a lab power supply that can easily output 5 V/4 A and I would like
      to use it to power a Raspberry Pi (version 3B and 3B+).



      In theory one could attach the power directly to the +5v pin in the header, but that means bypassing the over-current and over-voltage protection provided by the USB circuitry. Thus I would like to use the USB port.



      Is it enough to wire the positive and negative rails of the lab power supply to the +/- pins of a male micro USB connector?



      Should the data pins be left unconnected/floating?






      usb power power-supply connectors




      usb power power-supply connectors






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 6 hours ago









      gioele

      11815




      11815




















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          That should work. The data pins are not connected at the Pi end of the microUSB socket, the socket is purely for power.






          share|improve this answer




















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            up vote
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            That should work. The data pins are not connected at the Pi end of the microUSB socket, the socket is purely for power.






            share|improve this answer
























              up vote
              5
              down vote













              That should work. The data pins are not connected at the Pi end of the microUSB socket, the socket is purely for power.






              share|improve this answer






















                up vote
                5
                down vote










                up vote
                5
                down vote









                That should work. The data pins are not connected at the Pi end of the microUSB socket, the socket is purely for power.






                share|improve this answer












                That should work. The data pins are not connected at the Pi end of the microUSB socket, the socket is purely for power.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 6 hours ago









                joan

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