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Power-over-Ethernet voltage regulator to make the Ethernet Shield a fully 802.3af-compliant Powered Device

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Power-over-Ethernet 802.3af Regulator

Module to regulate power supplied on Power-over-Ethernet connection down to 10Vdc for supply to the on-board voltage regulator in an Arduino Uno or other compatible board using the Freetronics Ethernet Shield, or boards with onboard Ethernet such as the Freetronics EtherTen, EtherMega, and EtherDue.

The output can optionally be switched to 12V which can be useful for supplying power to external loads such as 12V relays.

Features:

  • Adds 802.3af-compliant Power-over-Ethernet "PD" (powered device) support to the Freetronics Ethernet shield and other Freetronics boards.
  • Input voltage range 36-57Vdc (nominal 48Vdc for 802.3af PoE)
  • Output voltage regulated to 10V and fed to Arduino on-board voltage regulator via Ethernet shield for further regulation down to 5V.
  • Plugs directly onto Freetronics Ethernet Shield and other Freetronics boards.
  • "Power on" LED.

More information at:

http://www.freetronics.com.au/poereg

Hardware

The "Hardware" directory contains the PCB design as an EAGLE project. EAGLE PCB design software is available from Autodesk free for non-commercial use.

Credits

License

Copyright 2010-2021 Freetronics Pty Ltd www.freetronics.com

The hardware portion of this project is licensed under the TAPR Open Hardware License (www.tapr.org/OHL). The "license" folder within this repository also contains a copy of this license in plain text format.

The software portion of this project is licensed under the Simplified BSD License. The "licence" folder within this project contains a copy of this license in plain text format.

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Power-over-Ethernet voltage regulator to make the Ethernet Shield a fully 802.3af-compliant Powered Device

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