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Power Over Ethernet (PoE) Training Resources

Skyworks is introducing a series of short technical videos on PoE operation from basic understanding to power supply topology

Skyworks industry leading Power over Ethernet (PoE) products simplify adding PoE to any Ethernet system and support the latest 90 W IEEE 802.3bt standard. Easily add power to a single Ethernet port or to an entire multi-port switch with our Power Sourcing Equipment (PSE) products. Eliminate the need for an external power supply in an Ethernet connected device by using one of our integrated, efficient Powered Device (PD) products to take power off of the Ethernet cable. Our PSE and PD products include detailed application notes, open source EVBs, and relevant test reports to jump start your design!

Please visit https://www.skyworksinc.com/Products/Power for PoE datasheets, application notes, and proven cost-effective reference designs.

  • PoE basics - Standard overview
  • Understand IEEE 802.3af/at/bt PoE standards, available power (PSE and PD side), classes, types, how many pairs, etc
  • PoE basics - MPS
  • Understand how MPS (maintain power signature) works
  • PoE basics - Classification
  • Understand PoE and Power Devices' classification functions
  • PoE basics - Detection
  • Understand PoE and Power Devices' detection features
  • Snubber design part 1
  • Part 1: How can snubbers help my power supply design?
  • Snubber design part 2
  • Part 2: Snubber design with Si340x based PoE power supplies