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[802.3_4PPOE] "af" classification work



I am looking for some of the previous work on classification done in either af or at or both.  Specifically, Dave Dwelley has a vague memory of some work done discussing a technique similar to that presented by Phillips (Lennart Yseboodt?) in August 2013.  In essence, after power up the PD draws maximum power (really current in this context) for a specified time and that current is measured by the PSE and used  (plus margin)  to determine the PD power allocation. I hope to do a presentation on the benefits of such a technique in Indian Wells and it would be nice to have any previous work on this technique from the archive.


The standard ‘adult beverage’ award is being offered for information leading to the whereabouts of relevant previous presentations.


I look forward to seeing you all in Indian Wells.




Jeff Heath
Design Center Manager

Description: Linear Technology Corporation




402 East Carrillo Street, Suite D


Santa Barbara, California 93101