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Presenter
: Lee Hill Silent
Solutions -
Bio
Date :
May 13th 2003
Location : Front
Range Community College
What we saw:
First the officers of the RMCEMC Society wish to extend their thanks
for the support of Steward Ferrite and Lee Hill for agreeing to this
impromptu meeting. We all benefited from Lee Hills excellent
presentation and technical information on ferrites. Lee started the
meeting by summarizing the challenges of EMI and using simple
models Lee descibed some typical EMI sources and how to find them. Lee
reviewed some low, broadband and high frequency EMI problems and went
onto some typical EMI fixes. A natural byproduct was a short
discussion on how to avoid EMI problems in the first place as well as
an overview of EMI challenges awaiting the unwary. Lee then
focused very closely on ferrites and how they affected the EMI noise
source model. He discussed some placement tips and shared some secrets
of using ferrites. He then went into a description of Common-mode vs.
differential mode current and voltage with some design trade offs that
might have to be considered. Lee then approached the issue of power
bus filtering and some sneaky problems that lurk in the design
shadows. All in all this was a very comprehensive review of ferrites
and how they might be applied in upfront design. Thanks Lee.
Speaker:.
Staff Consultant - Lee Hill
Lee Hill is an EMC consultant with fifteen years of experience in the
design and retrofit of complex electronic systems. Previously he was
Principal EMC and Systems Engineer at Digital Equipment Corporation's
Workstation Systems Engineering Design Group in Palo Alto, California.
Mr. Hill has completed two years of service as an
IEEE EMC Society Distinguished Lecturer. He has authored IEEE
papers, tutorials, and demonstrations on EMI control in PC board
layout and high speed video signaling, and is a frequent speaker at
local
IEEE EMC Society chapters in the US. Mr Hill is an EMC instructor
for the
University of California-Berkeley,
Agilent Technoligies (formerly Hewlett-Packard Company) and the
General Physics Corporation. Lee is currently presently
Chairman of the IEEE EMC Society Distinguished Lecturer Program,
and is a past Vice-Chair of the
Central New England Chapter of the IEEE EMC Society. He recently
completed a three term on the editorial review board of
Printed Circuit Design Magazine.
Experience
Mr Hill's
EMC design experience includes a variety of high performance computers
and peripherals, automotive electronics, industrial machines,
scientific instruments, and integrated circuit handling equipment. He
has authored many IEEE papers , tutorials, and demonstrations on EMI
control in PC board layout and high speed video signaling. Mr. Hill is
frequently invited to speak at IEEE EMC Society chapters throughout
the US.
Awards and Activities
Mr. Hill
was awarded the prestigious 1993 IEEE EMC Society President's Memorial
Scholarship, the 1994 Missouri Collegiate Entrepreneur Award, and
Digital Equipment Corporation's Employee Achievement Award.
Education
Mr. Hill
received the Master of Science Degree in Electrical Engineering and
electromagnetics with highest honors from the University of
Missouri-Rolla (UMR). The
UMR EMC Laboratory and EMC Reserach Consortium comprise the US's
premier EMC research center, and is recognized and supported by
industry and the National Science Foundation.
Speaker
Contact Information:
Lee Hill
Silent Solutions LLC
10 Northern Blvd., Suite 1
Northwood Executive Park
Amherst, NH 03031
603 578 1842 - Work
603 578 1843 - FAX
email:
LHill@silent-solutions.com |
