Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v5ADgcZ1022953 for ; Sat, 10 Jun 2017 15:42:40 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dJgbO-00040c-9o for rs_out_1@blacksheep.org; Sat, 10 Jun 2017 14:38:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dJgbN-00040T-RO for rsgb_lf_group@blacksheep.org; Sat, 10 Jun 2017 14:38:53 +0100 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1dJgbL-0007aX-5U for rsgb_lf_group@blacksheep.org; Sat, 10 Jun 2017 14:38:52 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 8DDDA20900 for ; Sat, 10 Jun 2017 15:38:49 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3wlKxh2QsVzyxY for ; Sat, 10 Jun 2017 15:38:48 +0200 (CEST) Message-ID: <593BF668.8080005@posteo.de> Date: Sat, 10 Jun 2017 15:38:48 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <953388818.20170606163952@gmail.com> <59385FE1.50405@posteo.de> <251639453.20170610142258@gmail.com> In-Reply-To: <251639453.20170610142258@gmail.com> X-Scan-Signature: e90dcb17768c7e768f13e0721cc1c0c7 Subject: Re: LF: Decoupling linear PSU Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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-Scanned-By: MIMEDefang 2.75 Status: O X-Status: X-Keywords: X-UID: 11939 Hi Chris, Hm, there is no 1 Ohm resistor in my drawing. Regarding the number of turns, if you run 50A DC, you will have at least 6 mm^2 wire i assume. So you can't wind 2x 6 turns through this core. Rather 2x2 turns. These cores are not expensive, so i would just buy 10 of them and experiment to see which improvement can be obtained. I'm using these cores in my LF PA and the effect was signifinant. Important is the way you wind the wire on the core. That one close to the load suppresses common mode currents, the other one is for differential mode currents... 73, Stefan Am 10.06.2017 15:22, schrieb Chris Wilson: > Hello Stefan, > > Thanks for the reply, with regard to the current transformer, where > does the 1 Ohm resistot go?? In your drawing of the chokes can I > assume the six turns each you drew is accurate and you intend me to > wind six turns on each core? Thanks! > > Wednesday, June 7, 2017, 9:19:45 PM, you wrote: