also provide negative feedback on
seminars that don't provide practical, useful information, substantiated
by emissions tests.
Max Kelson
mkel...@es.com
-Original Message-
From: Jim Hulbert [SMTP:hulbe...@pb.com]
Sent: Wednesday
in addition to restricting low frequency emissions.
If you look on the back of any monitor that was built in the last few
years, you will probably see this sticker.
Max Kelson
Evans Sutherland
mkel...@es.com
-Original Message-
From: John Harrington [SMTP:jharring...@ktl.co.uk]
Sent: Wednesday
. They could undoubtedly modify
a 5V converter to work with your load also. Astec's phone number is
760-930-4713.
Max Kelson
mkel...@es.com
Evans Sutherland Computer Corp.
-Original Message-
From: Bob Tims [SMTP:rt...@emx.ericsson.se]
Sent: Tuesday, January 06, 1998 8:21 AM
Keith,
Thanks for the great information. I see that you are one of the
authors of the excellent IEEE article. Have you written any other
articles that you might want to call our attention to?
Max
mkel...@es.com
Max Kelson
Peripherals Engineer
Evans Sutherland Computer Corp.
%
%Max,
%
%1
likely to be a problem?
For emissions, BTW, I have also had good luck with DEC.
Max Kelson
mkel...@es.com
%
%I have tested systems to the heavy industrial immunity specification which
%included class B PCs. Both HP Vectra computers and Dell computers faired
%well. Ocassionally the monitors sold
months ago with
the average salary of a variety of professions in the electronic field.
I think the figure for compliance engineers was $56K (not sure).
Max Kelson
mkel...@es.com
outlets and the low-quality connectors that come on
the ends of power cords.
Max
accurate
measurements, but would require measurement of the output of each transformer.
%
% Jonathan Malton
% S-S Technologies, Inc.
% Kitchener, Ontario, Canada
%
% I'm not so arrogant as to suggest that my opinions are corporate policy
%
%
%
Max Kelson
mkel...@es.com
of turns ratio, but also depends on the
wire and core construction. She claims that they can calculate
transformer accuracy simply by looking at the wire and core
specifications.
Max
mkel...@es.com
I have a power cord sample from a vendor that I would like to use for
48VDC power distribution in a computer system. It's super flexible
and ideal for my application.
Does UL1662 cable meet the safety requirements for this type of
application for UL/CSA/TUV?
Thanks,
Max Kelson
mkel...@es.com
Mike,
Thanks for the information. I wish I had tried moving the wires against
the chassis or putting ferrites on the fan wires.
I'm not sure what I could do about this from a practical view point,
though, except to look for another PC. I doubt if the FCC would allow
you to modify the PC.
Max
will probably need to filter the RETURN before you connect
it to the chassis. I have seen this done by running the signal and return
together through a ferrite over a separated ground plane, but don't know
enough about the technique to recommend it.
Max
mkel...@es.com
%
%
%Max,
%
%At what frequency or band of frequencies is the problem occuring?
Our video clock operates at 126 Mhz. The frequency synthesizer seems to be
deriving this from a 31.5 Mhz clock, so it produces harmonics at 31.5,
63.0, 95.5, 126.0, 157.5, 189.0 220.5, 252,0, 283.5, 315.0, 346.5, etc
that are doing a
lot of switching at the dot-clock frequency.
I would appreciate any tips or ideas anyone might have. In addition, I would
consider opening a PO and paying consulting fees to a PC video card guru.
Max
mkel...@es.com
74 48
X.400 c=gb; a=gold 400; p=bsi; o=bsi; s=surname; g=first name;
Telegram: standards london w.1
Telex: 26 69 33 bsilon g
Max Kelson
mkel...@es.com
with a phase to neutral connection.
Like you, I would be interested in further information in this area.
Max Kelson
mkel...@es.com
%
% Hello everyone,
%
% Sorry, I asked this several days ago and got no response, so maybe the
% email just didn't come through.
%
% Would
directly with design engineers or
interface with just one person within your company, etc.?
Does anyone have the names of any good consultants?
Max Kelson
mkel...@es.com
serves and I interpreted the article correctly, I think this
method of keeping VCC and ground clean was described in the EDN article
that I mentioned previously.
Max
mkel...@es.com
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