Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

[802.3_4PPOE] Slide 7



Yair,

 

On slide you again say that the PD PI needs to be better than the PSE PI despite the objections noted in the previous meeting. 

 

Could create a presentation to show why you come to this conclusion.

 

IF anything, the PSE is much easier to balance (if one does not use AC MPS.)  The standard PD implementation has diode bridges which in the short channel case (at least), are currently thought to be the largest contributor to overall current imbalance.

 

In short, in the worst case PSE implementation (using AC MPS diodes) twice as many diodes as the PSE which directly opposes the conclusion you have arrived at.

 

Regards,

 

Jeff Heath
Design Center Manager

Description: Linear Technology Corporation

 

 

paper:

402 East Carrillo Street, Suite D

 

Santa Barbara, California 93101

voice:

805.965.6400

fax:

805.965.1701

computer:

jheath@xxxxxxxxxx

 

www.linear.com