In message
OFE9DD0726.68368FB0-ON88257D15.007F7EB3-88257D15.007F95B3@US.Schneider-E
lectric.com, dated Mon, 14 Jul 2014,
ralph.mcdiar...@schneider-electric.com writes:
Linear techniques these days are costly, heavy or just unfashionable.
Or mysterious to some of the recent graduate engineers
On 7/15/2014 2:19 AM, John Woodgate wrote:
Linear techniques these days are costly, heavy or just unfashionable.
Or mysterious to some of the recent graduate engineers today?
That's a consequence of 'unfashionable'.
It's a consequence of efficiency standards. I may be fixing EMI problems
In message 53c53ed7.80...@earthlink.net, dated Tue, 15 Jul 2014, CR
k...@earthlink.net writes:
On 7/15/2014 2:19 AM, John Woodgate wrote:
Linear techniques these days are costly, heavy or just unfashionable.
Or mysterious to some of the recent graduate engineers today?
That's a consequence
|
Regulatory Compliance Engineering
From:
John Woodgate j...@jmwa.demon.co.uk
To:
EMC-PSTC@LISTSERV.IEEE.ORG,
Date:
06/04/2014 10:58 AM
Subject:
Re: [PSES] radiated emissions testing may understate actual emissions, an
example using a class D stereo amp
In message
a8f260b4d69943a6a1ef4c01b782b
In message 538ea5c5.6070...@emcesd.com, dated Tue, 3 Jun 2014, Douglas
Smith d...@emcesd.com writes:
I just posted my latest Technical Tidbit a few hours ago using a class
D stereo amplifier to illustrate a potential problem whereby emission
test standards may understate the emissions from a
Hi Dough
I am not sure that this increased current contributes to radiation, as
it might be only a capacitive coupled local current that flows back from
the cabling through the conductive table to EUT.
By lifting the EUT that loop capacitance becomes smaller and so the
current.
It might even
] radiated emissions testing may understate actual emissions, an
example using a class D stereo amp
Hi Everyone,
I just posted my latest Technical Tidbit a few hours ago using a class D stereo
amplifier to illustrate a potential problem whereby emission test standards may
understate
@LISTSERV.IEEE.ORG
Subject: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
Hi Everyone,
I just posted my latest Technical Tidbit a few hours ago using a class D
stereo amplifier to illustrate a potential problem whereby emission test
standards
On 6/4/2014 9:47 AM, Mike Violette wrote:
Class B limits are amazingly conservative, to which large populations
of devices ascribe.
Try using an ordinary AM radio beside a compact fluorescent lamp
as on a beside table.
-
This
-Original Message-
From: Richard Nute [mailto:ri...@ieee.org]
Sent: 04 June 2014 18:02
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
On 6/4/2014 9:47 AM, Mike Violette wrote:
Class B limits
04, 2014 11:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
On 6/4/2014 9:47 AM, Mike Violette wrote:
Class B limits are amazingly conservative, to which large populations of
devices
, 2014 10:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
On 6/4/2014 9:47 AM, Mike Violette wrote:
Class B limits are amazingly conservative, to which large populations of
devices ascribe.
Try
04, 2014 10:26 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
Do we still have AM? Someone once called that was Ancient Modulation. :)
I suspect that in a few years fluorescent lamps will give
: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
I do not want to speak for Mike Violette, but what I think he is referring
to by interference is the fact that, while the FCC could care less if two
part 15 devices interfered with each
...@ieee.org]
Sent: Wednesday, June 04, 2014 10:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
On 6/4/2014 9:47 AM, Mike Violette wrote:
Class B limits are amazingly conservative, to which
In message 538f50f1.3090...@ieee.org, dated Wed, 4 Jun 2014, Richard
Nute ri...@ieee.org writes:
Class B limits are amazingly conservative, to which large populations
of devices ascribe.
Try using an ordinary AM radio beside a compact fluorescent lamp
as on a beside table.
IS a CFL a
In message
a8f260b4d69943a6a1ef4c01b782b...@blupr01mb147.prod.exchangelabs.com,
dated Wed, 4 Jun 2014, Rick Busche rick.bus...@qnergy.com writes:
As a side note, do LED lamps create EMI concerns?
Yes, or rather their feed circuits do: anything that uses switching
technology does. Linear
-led-lighting.html
-Bob Sykes
-Original Message-
From: Rick Busche [mailto:rick.bus...@qnergy.com]
Sent: Wednesday, June 04, 2014 1:26 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
Message-
From: Richard Nute [mailto:ri...@ieee.org]
Sent: Wednesday, June 04, 2014 10:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
On 6/4/2014 9:47 AM, Mike Violette wrote
: woensdag 4 juni 2014 19:26
Aan: EMC-PSTC@LISTSERV.IEEE.ORG
Onderwerp: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
Do we still have AM? Someone once called that was Ancient Modulation. :)
I suspect that in a few years fluorescent
]
Sent: Wednesday, June 04, 2014 10:26 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
Do we still have AM? Someone once called that was Ancient Modulation. :) I
suspect that in a few years
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
Charlie,
FCC Class B protection distance is 3m, where Class A is 10m. This
establishes their relationship. Class B = X dBuV measured at 3m
-Oorspronkelijk bericht-
Van: Rick Busche [mailto:rick.bus...@qnergy.com]
Verzonden: woensdag 4 juni 2014 19:26
Aan: EMC-PSTC@LISTSERV.IEEE.ORG
Onderwerp: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
Do we still have AM? Someone once
AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
Charlie,
FCC Class B protection distance is 3m, where Class A is 10m. This
establishes their relationship. Class B = X dBuV measured at 3m
]
Sent: Wednesday, June 04, 2014 11:15 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
We (pilots) even use it for less than critical communications. :-)
Ghery S. Pettit
-Original Message
-Original Message-
From: Pettit, Ghery [mailto:ghery.pet...@intel.com]
Sent: Wednesday, June 04, 2014 11:15 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
We (pilots) even use it for less
...@cetest.nl]
Sent: Wednesday, June 04, 2014 1:06 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
Airplanes use AM for critical communications between airport and plane.
A reliable connection
: Wednesday, June 04, 2014 2:12 PM
To: Sykes, Bob; EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
Bob
I've always read it as being a measurement distance.
The FCC/CISPR limits are (more or less) the same
In message 000a01cf8024$494154b0$dbc3fe10$@pctestlab.com, dated Wed, 4
Jun 2014, Dward dw...@pctestlab.com writes:
Currently the rules are very specific about the year of CISPR 22 that
can be used. 15.38 specifically states that the reference to CISPR pub
22 only applies to the 1997 third
...@jmwa.demon.co.uk]
Sent: Wednesday, June 4, 2014 12:40 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
In message 000a01cf8024$494154b0$dbc3fe10$@pctestlab.com, dated Wed, 4 Jun
2014, Dward dw
@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
No, I not German but Dutch ...
This was me
http://www.youtube.com/watch?v=zhnGIxrepEI
Gert
-Oorspronkelijk bericht-
Van: Gary McInturff
: Sundstrom, Mike [mailto:mike.sundst...@garmin.com]
Sent: Wednesday, June 04, 2014 12:11 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
I'm pretty sure that:
The only reason the FAA is still
Subject: Re: [PSES] radiated emissions testing may understate actual emissions,
an example using a class D stereo amp
I thought that version was available on papyrus scrolls also.
Ted Eckert
Compliance Engineer
Microsoft Corporation
ted.eck...@microsoft.com
The opinions expressed are my own
In message
a6c794aac3df43f79e3a96a2a8754...@bl2pr03mb372.namprd03.prod.outlook.com
, dated Wed, 4 Jun 2014, Ted Eckert ted.eck...@microsoft.com writes:
I thought that version was available on papyrus scrolls also.
Only the French text.
--
OOO - Own Opinions Only. With best wishes. See
: Wednesday, June 04, 2014 12:55 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
I thought that version was available on papyrus scrolls also.
Ted Eckert
Compliance Engineer
Microsoft Corporation
, 2014 12:40 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] radiated emissions testing may understate actual
emissions, an example using a class D stereo amp
In message 000a01cf8024$494154b0$dbc3fe10$@pctestlab.com, dated Wed, 4 Jun
2014, Dward dw...@pctestlab.com writes:
Currently the rules
Hi Everyone,
I just posted my latest Technical Tidbit a few hours ago using a
class D stereo amplifier to illustrate a potential problem whereby
emission test standards may understate the emissions from a digital
device. Here goes:
Abstract: Radiated
37 matches
Mail list logo
