Return-Path: Received: from rly-md09.mx.aol.com (rly-md09.mail.aol.com [172.20.29.147]) by air-md06.mail.aol.com (v121_r2.11) with ESMTP id MAILINMD063-92848ad29419e; Thu, 21 Aug 2008 04:37:43 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md09.mx.aol.com (v121_r2.11) with ESMTP id MAILRELAYINMD098-92848ad29419e; Thu, 21 Aug 2008 04:37:23 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1KW5dr-0003mq-EN for rs_out_1@blacksheep.org; Thu, 21 Aug 2008 09:35:39 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1KW5dq-0003mh-U3 for rsgb_lf_group@blacksheep.org; Thu, 21 Aug 2008 09:35:38 +0100 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1KW5dm-0005Dn-Ns for rsgb_lf_group@blacksheep.org; Thu, 21 Aug 2008 09:35:38 +0100 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id C9ECD51C1E9 for ; Thu, 21 Aug 2008 10:35:07 +0200 (CEST) Received: from smtps02.kuleuven.be (localhost [127.0.0.1]) by smtps02.kuleuven.be (Postfix) with ESMTP id BD8D6F3864 for ; Thu, 21 Aug 2008 10:35:07 +0200 (CEST) Received: from dell-rik.fys.kuleuven.be (dhcp-10-33-85-199.fys.kuleuven.be [10.33.85.199]) by smtps02.kuleuven.be (Postfix) with ESMTP id AADC8F3862 for ; Thu, 21 Aug 2008 10:35:07 +0200 (CEST) X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Thu, 21 Aug 2008 10:35:09 +0200 To: rsgb_lf_group@blacksheep.org X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe In-Reply-To: <281222.921.qm@web26004.mail.ukl.yahoo.com> References: <281222.921.qm@web26004.mail.ukl.yahoo.com> Mime-Version: 1.0 Message-Id: <20080821083507.AADC8F3862@smtps02.kuleuven.be> X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Spam-Score: -0.3 (/) X-Spam-Report: autolearn=disabled,AWL=-0.316 Subject: LF: 500kHz PA with IR2110 driver Content-Type: text/plain; charset="us-ascii"; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n Dear all, experimenting with my actual 500kHz/300W PA I found out that the popular TC4426 driver has trouble to switch a couple of IRFP350's properly at 500kHz. For that reason I intend to build a new PA using an IR2110 driver. Some time ago I have seen a 500kHz (500W ?) PA using the IR2110 somewhere on the web, but right now I cannot "google" it. I believe it was from a US ham. Anyone who knows the URL or can point me in the right direction ? 73, Rik ON7YD - OR7T Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm