High Efficiency Class 4 PoE Powered Device

This report introduces a high-efficiency Power-over-Ethernet (PoE) Powered Device (PD) that complies with the Type 2 Class 4 power requirements outlined in the IEEE802.3at Draft 3.3 standard. The standard permits a Type 2 Class 4 PD to draw up to 25.5 W of power at the Power Interface (PI) when connected to compatible Type 2 Power Sourcing Equipment (PSE) using Type 2 compliant cabling. A fully