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    MORE POWER!

     

    Today we’re announcing the next generation of our Power over Ethernet (PoE) HAT. Compared to its predecessor, the Raspberry Pi PoE+ HAT delivers more power, implementing the 802.3at PoE+ standard; and it runs cooler, thanks to various design improvements. Best of all, we’ve been able to keep the original affordable price of $20.

     

     

    The original PoE HAT implements the 802.3af standard, and can deliver a guaranteed minimum of 13W to the Raspberry Pi. This is enough to power a Raspberry Pi 4 at maximum load, but not quite enough to power the hungriest USB peripherals at the same time.

    The PoE+ HAT implements the 802.3at standard. When used with a compatible switch or injector this means it can deliver up to 25W, as you can see from this comparison table.

     

    PoE HATPoE+ HAT
    Standards supported802.3af802.3af, 802.3at
    Output voltage5V5V
    Maximum output current2.5A5A
    Maximum power15.4W25.5W
    FanYesYes
    Current senseNoYes
    Transformer designWire-woundPlanar
    PCB4 layers, 2oz copper4 layers, 2oz copper
    Price$20$20
    Compatible withRaspberry Pi 3B+, 4BRaspberry Pi 3B+, 4B

    The new components:

     

    A New Diode Rectifier -
    The Raspberry Pi Foundation have replaced the existing diode rectifier with what they are calling an "Ideal diode".

     

    A New Transformer - Bourns Planar Transformer

    A very interesting almost flat transformer which uses PCB traces as windings for the Transformer its self!

     

    All in all a wonderful and rounded upgrade with some great real world problem solving!

     

    What would you do with the new PoE Hat?