Return-Path: Received: from rly-db01.mx.aol.com (rly-db01.mail.aol.com [172.19.130.76]) by air-db10.mail.aol.com (v125.7) with ESMTP id MAILINDB103-aa84adcbe0ad6; Mon, 19 Oct 2009 15:29:36 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-db01.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDB016-aa84adcbe0ad6; Mon, 19 Oct 2009 15:29:17 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MzxtX-0006VM-M2 for rs_out_1@blacksheep.org; Mon, 19 Oct 2009 20:27:51 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MzxtW-0006VD-V5 for rsgb_lf_group@blacksheep.org; Mon, 19 Oct 2009 20:27:50 +0100 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Mzxrw-0003ak-KX for rsgb_lf_group@blacksheep.org; Mon, 19 Oct 2009 20:26:13 +0100 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 05F6151C00F for ; Mon, 19 Oct 2009 21:27:20 +0200 (CEST) Received: from ICTS-S-HUB-N3.luna.kuleuven.be (icts-s-hub-n3.luna.kuleuven.be [10.112.9.13]) by smtps02.kuleuven.be (Postfix) with ESMTP id EA541F3862 for ; Mon, 19 Oct 2009 21:27:19 +0200 (CEST) Received: from ICTS-S-EXC2-CA.luna.kuleuven.be ([10.112.11.13]) by ICTS-S-HUB-N3.luna.kuleuven.be ([10.112.9.13]) with mapi; Mon, 19 Oct 2009 21:27:19 +0200 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Date: Mon, 19 Oct 2009 21:27:18 +0200 Thread-Topic: Re: Thanks Brian Thread-Index: AcpQ01WaCFoaJr/KQA6XfGueSCYG7gAHh+Ya Message-ID: References: ,<004801ca50d2$ca6177e0$0301a8c0@mal769a60aa920> In-Reply-To: <004801ca50d2$ca6177e0$0301a8c0@mal769a60aa920> Accept-Language: nl-NL, nl-BE Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: nl-NL, nl-BE MIME-Version: 1.0 X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: RE: Re: Thanks Brian Content-Type: multipart/alternative; boundary="_000_BF4A524700075746A6467658DFC7102C127DC2DF81ICTSSEXC2CAlu_" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,HTML_MESSAGE, TO_ADDRESS_EQ_REAL 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-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --_000_BF4A524700075746A6467658DFC7102C127DC2DF81ICTSSEXC2CAlu_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Typical efficiency of a push pull amp in class AB is 65 to 70% For class D it is 80-85%, for a class E amp 90-95%. In theory class E has no losses ... if you could find the perfect switch= (no turn-on / turn-off time, no resistance) and coils. 73, Rik ON7YD - OR7T ________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.or= g] namens mal hamilton [g3kevmal@talktalk.net] Verzonden: maandag 19 oktober 2009 17:42 Aan: rsgb_lf_group@blacksheep.org Onderwerp: LF: Re: Thanks Brian A BIT LESS!!!!! at least 50% less than a class D or E, which should yield= 90% with a proper design. G3KEV ----- Original Message ----- From: Chris To: RSGB LF Group Sent: Monday, October 19, 2009 4:18 PM Subject: LF: Thanks Brian OK Brian, thanks for the info. Yes, I realise the efficiency will be a bit= less. Seems different people have had quite different experiences using= AF techniques/ready made amps etc. Thanks, 73, Chris, G4AYT. ________________________________ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.422 / Virus Database: 270.14.20/2444 - Release Date: 10/18/09= 09:04:00 --_000_BF4A524700075746A6467658DFC7102C127DC2DF81ICTSSEXC2CAlu_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Typica= l efficiency of a push pull amp in class AB is 65 to 70%
For class D it is 80-85%= , for a class E amp 90-95%.
In theory class E has no= losses ... if you could find the perfect switch (no turn-on /  turn-= off time, no resistance) and coils.
 
73, Rik  ON7YD - OR7T=
 
Van: owner-rsgb_lf_group@blackshee= p.org [owner-rsgb_lf_group@blacksheep.org] namens mal hamilton [g3kevmal@t= alktalk.net]
Verzonden: maandag 19 oktober 2009 17:42
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: LF: Re: Thanks Brian

A BIT LESS!!!!! at least 50% less tha= n a class D or E, which should yield 90% with a proper design.
G3KEV
 
----- Original Message -----
From: Chris
Sent: Monday, October 19, 2009 4:18= PM
Subject: LF: Thanks Brian

OK Brian, thanks for the info. Yes,= I realise the efficiency will be a bit less. Seems different people have= had quite different experiences using AF techniques/ready made amps etc.<= /font>
Thanks, 73,
Chris, G4AYT.


No virus found in this incoming message.
Checked by AVG - www.avg.= com
Version: 8.5.422 / Virus Database: 270.14.20/2444 - Release Date: 10/18/09= 09:04:00
--_000_BF4A524700075746A6467658DFC7102C127DC2DF81ICTSSEXC2CAlu_--