Return-Path: Received: from mtain-mj05.r1000.mx.aol.com (mtain-mj05.r1000.mail.aol.com [172.21.164.89]) by air-dd02.mail.aol.com (v129.4) with ESMTP id MAILINDD023-86584d63ffb113d; Tue, 22 Feb 2011 13:25:53 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mj05.r1000.mx.aol.com (Internet Inbound) with ESMTP id A653138000056; Tue, 22 Feb 2011 13:25:50 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Prwuc-00029R-P3 for rs_out_1@blacksheep.org; Tue, 22 Feb 2011 18:24:38 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Prwuc-00029I-6Z for rsgb_lf_group@blacksheep.org; Tue, 22 Feb 2011 18:24:38 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Prwub-0005OM-2Y for rsgb_lf_group@blacksheep.org; Tue, 22 Feb 2011 18:24:38 +0000 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p1MIOZuP005042 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 22 Feb 2011 19:24:36 +0100 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p1MIOZu6007696 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 22 Feb 2011 19:24:35 +0100 Received: from [147.142.13.34] (vpn513-034.rzuser.uni-heidelberg.de [147.142.13.34]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id p1MIOXJD023578 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 22 Feb 2011 19:24:34 +0100 Message-ID: <4D63FF65.2030204@iup.uni-heidelberg.de> Date: Tue, 22 Feb 2011 19:24:37 +0100 From: =?ISO-8859-15?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <788033577-1298396905-cardhu_decombobulator_blackberry.rim.net-1949347720-@bda644.bisx.prod.on.blackberry> In-Reply-To: <788033577-1298396905-cardhu_decombobulator_blackberry.rim.net-1949347720-@bda644.bisx.prod.on.blackberry> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Title: Power MOSFET Knock Efficiency Up A Notch Content-Type: multipart/alternative; boundary="------------000601060009090509030706" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.4 required=5.0 tests=HTML_30_40,HTML_MESSAGE, HTML_TITLE_EMPTY 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-sid: 3039400c89aa4d63ffae49c9 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------000601060009090509030706 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit These FETs can be used as a very low-loss electronic switch in 12V circuits but are not suitable for a easy PA design (running at 12VDC). Maybe they are difficult to get. An alternative which is easy to get and is most suitable for a high power class E PA at 12 VDC is the IRF1404 73, Stefan/DK7FC Am 22.02.2011 18:48, schrieb kd4wov@earthlink.net: > Could these help in getting the efficiencies higher in LF amps? > > Granted, these are low power devices. Looks like they are on the right track. > > > > http://electronicdesign.com/article/power/Power-MOSFET-Knock-Efficiency-Up-A-Notch-.aspx?cid=ed_productsnewsletter&NL=1&YM_RID=kd4wov@earthlink.net > > Sent via BlackBerry by AT&T > --------------000601060009090509030706 Content-Type: text/html; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit These FETs can be used as a very low-loss electronic switch in 12V circuits but are not suitable for a easy PA design (running at 12VDC). Maybe they are difficult to get. An alternative which is easy to get and is most suitable for a high power class E PA at 12 VDC is the IRF1404


73, Stefan/DK7FC

Am 22.02.2011 18:48, schrieb kd4wov@earthlink.net: 
Could these help in getting the efficiencies higher in LF amps?

Granted, these are low power devices. Looks like they are on the right track.



http://electronicdesign.com/article/power/Power-MOSFET-Knock-Efficiency-Up-A-Notch-.aspx?cid=ed_productsnewsletter&NL=1&YM_RID=kd4wov@earthlink.net

Sent via BlackBerry by AT&T
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