Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dg06.r1000.mx.aol.com (Internet Inbound) with ESMTP id E348F38000096; Sat, 7 Apr 2012 03:23:15 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SGPxv-00087B-A8 for rs_out_1@blacksheep.org; Sat, 07 Apr 2012 08:21:43 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SGPxu-000872-Gp for rsgb_lf_group@blacksheep.org; Sat, 07 Apr 2012 08:21:42 +0100 Received: from mailout-de.gmx.net ([213.165.64.23]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1SGPxs-0007cI-0g for rsgb_lf_group@blacksheep.org; Sat, 07 Apr 2012 08:21:42 +0100 Received: (qmail invoked by alias); 07 Apr 2012 07:21:33 -0000 Received: from p4FD0C2B4.dip.t-dialin.net (EHLO Clemens04) [79.208.194.180] by mail.gmx.net (mp069) with SMTP; 07 Apr 2012 09:21:33 +0200 X-Authenticated: #17214767 X-Provags-ID: V01U2FsdGVkX1+QJuN7wBiQCq7tJ5vuwOSlP+BgTCBfwW9OPDQQTd tOWE+t8kYeOegi Message-ID: <013901cd148f$0f98bf80$1502a8c0@Clemens04> From: "Clemens Paul" To: References: <4F78CCE0.5050906@iup.uni-heidelberg.de> <4F7F03A4.8080000@iup.uni-heidelberg.de> <4F7F8721.50006@iup.uni-heidelberg.de> Date: Sat, 7 Apr 2012 09:21:29 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3664 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3664 X-Y-GMX-Trusted: 0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: LOPTs Content-Type: multipart/alternative; boundary="----=_NextPart_000_0135_01CD149F.D0BE4B20" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:431239936:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d410e4f7feb631010 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0135_01CD149F.D0BE4B20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Stefan, > the LOPT was warm, but just the ferrite, not the windings. So there must already be some > saturation of the >material. When a ferrite core gets warm or hot this does not necessarily mean that it's saturating.It's the losses which heat the core. You can even have saturation without heating and vice versa or both. 73 Clemens DL4RAJ ----- Original Message ----- From: Stefan Schäfer To: rsgb_lf_group@blacksheep.org Sent: Saturday, April 07, 2012 2:15 AM Subject: Re: LF: LOPTs : 2114/4918 - Ausgabedatum: 06.04.2012 ------=_NextPart_000_0135_01CD149F.D0BE4B20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Stefan,
 
> the LOPT was warm, but just the ferrite, not the = windings. So=20 there must already be some saturation of the >material.
 
When a ferrite core gets warm or hot = this does not=20 necessarily mean that it's
saturating.It's the losses which heat = the=20 core.
You can even have saturation = without heating=20 and vice versa or both. 
 
73
Clemens
DL4RAJ
----- Original Message -----
From:=20 Stefan = Sch=E4fer
Sent: Saturday, April 07, 2012 = 2:15=20 AM
Subject: Re: LF: LOPTs

: 2114/4918 - = Ausgabedatum: 06.04.2012=20

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