Return-Path: Received: from rly-df04.mx.aol.com (rly-df04.mail.aol.com [172.19.156.17]) by air-df07.mail.aol.com (v124.15) with ESMTP id MAILINDF073-5494a64ed7377; Mon, 20 Jul 2009 18:19:47 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-df04.mx.aol.com (v124.15) with ESMTP id MAILRELAYINDF048-5494a64ed7377; Mon, 20 Jul 2009 18:19:32 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MT1Bt-00063b-Rb for rs_out_1@blacksheep.org; Mon, 20 Jul 2009 23:18:37 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MT1Bt-00063S-2y for rsgb_lf_group@blacksheep.org; Mon, 20 Jul 2009 23:18:37 +0100 Received: from smtp817.mail.ird.yahoo.com ([77.238.189.17]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1MT1Bo-0007Dj-CJ for rsgb_lf_group@blacksheep.org; Mon, 20 Jul 2009 23:18:35 +0100 Received: (qmail 34355 invoked from network); 20 Jul 2009 22:18:26 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:In-Reply-To:Importance; b=HkSd7HgteypuunWAFh3zjkzIAUGFAbpj1nw+LZoPNk7a9fSTK48YGrJLjQGOwD/foCLFAkT0459wNd8hSvW7wEW2+2axQw+8ziQidEAgxeFcC+ZnsK5gzqp2v4FgGxBhkKn+rOjln3crGCok1Eaufrq80gZJcL0zt7elt/e7pfU= ; Received: from unknown (HELO aquarids) (ganymede444@86.141.125.244 with login) by smtp817.mail.ird.yahoo.com with SMTP; 20 Jul 2009 22:18:26 -0000 X-Yahoo-SMTP: JSvqNSWswBBXc9Mk_Vd71RtGz2bViJtuZMADdmi78eLqBj_R7.fL X-YMail-OSG: oyzVcygVM1klwA8gqwoVcy5BuMXCM99Tif4vwp7TN3XbFp.dQdyIF18AFeMHXF8naiJOl1Ftt88msEg0cJpWfJ5mu.4ODuvYOYEGrCZxWS.pf73HZkXgSKYMu8_hs8tXEMZpwX.Sw.mgmD62dW3M5tgl3EzMGA6H7wwN_CDPQd8LIZiSpZaYCg3bZFcUcIr_AG2ctV4leMVChofUi.2.1IjylIZQiOVXrGU3UupP1fiXjZ21RqqGJrtOJo0OGXnVWxEEh3HmhkD4KcOc8vsh6jB5qqUAptWT2Sx1X5TOTlhhCkAW5J08m3t6.Xd0iKJEbwPsAVgbQq0zEKY1D9pAWG5g.9EYbkiK83ABhKh1bQ-- X-Yahoo-Newman-Property: ymail-3 From: "Dave G3WCB" To: Date: Mon, 20 Jul 2009 23:18:47 +0100 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1914 In-Reply-To: Importance: Normal DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: RE: LF: Re: IGBT in 136 KHz TX? Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CA0990.6EC279E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.8 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_30_40, HTML_FONTCOLOR_BLUE,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-IP: 193.82.116.20 ------=_NextPart_000_0009_01CA0990.6EC279E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Jeff, Rik, Markus, Mouser GB sells the STGW30NC60WD IGBT, at £3-60 each. See the link below. You can download a data sheet from the same site. http://gb.mouser.com/search/ProductDetail.aspx?qs=bbdZqDPQhEUJJb0Z4VAXWQ== Farnell UK also sell them:- http://uk.farnell.com/stmicroelectronics/stgw30nc60wd/igbt-to-247/dp/1293659 73, Dave G3WCB IO91RM -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of F6CWN Sent: 20 July 2009 23:02 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Re: IGBT in 136 KHz TX? Hello Markus and Rick! I have only just acquainted myself with your messages. (Just going out from hospital, big blood pressure problem...) Thanks a lot for precious information, of what make fun still! I recovered some ferrites N87 types which should work in 137 KHZ. Another subject interests me, it is the possibility of transmitting with a big spool of several turns (a bit as WD2XDW). But EIRP is much weaker than with a vertical aerial, then it is necessary to "push more" in power! VY 73: Jeff ----- Original Message ----- From: Rik Strobbe To: rsgb_lf_group@blacksheep.org Sent: Friday, July 03, 2009 10:07 AM Subject: Re: LF: Re: IGBT in 136 KHz TX? Jeff, Marcus, STGW30NC60WD has a turnoff delay of 120ns. Turn on delay and rise / fall times are better than 30ns. That should be good enough for 137kHz, maybe even for 500kHz. It further has a max. Collector-Emitter Voltage of 600V, max. Collector Current of 60A (200A pulsed), max.. dissipation of 200W and a saturation voltage of 2V (@20A). Looks like a good "workhorse" for those who want to experiment with IGBT's. 73, Rik ON7YD - OR7T At 22:05 26/06/2009, you wrote: Dear Jeff, havn't actually tried it myself on 137 kHz. But from past experience I'd say that while IGBTs may have less DC loss, they are much slower (especially during turnoff). They can be used as effient switches at some tens of kHz, whereas MOSFETs will easily go up to several MHz. Kind regards, Markus, DF6NM ----- Original Message ----- From: F6CWN To: rsgb_lf_group@blacksheep.org Sent: Thursday, June 25, 2009 11:37 PM Subject: LF: IGBT in 136 KHz TX? Good night to all, Anybody would have any experience on the use of IGBT in 136 KHz amplifiers? Thanks in advance! 73: Jeff / F6CWN ------=_NextPart_000_0009_01CA0990.6EC279E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Jeff,=20 Rik, Markus,
 
Mouser GB sells the STGW30NC6= 0WD IGBT, at =A33-60=20 each. See the link below. You can download a data sheet from the same= =20 site.
 
 
Farnell UK also sell them:-
 
 
 
73,=20 Dave G3WCB IO91RM
-----Original Message-----
From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of=20 F6CWN
Sent: 20 July 2009 23:02
To:=20 rsgb_lf_group@blacksheep.org
Subject: Re: LF: Re: IGBT in= 136 KHz=20 TX?

Hello Markus and Rick!
 
I have only just acquainted myself= with your=20 messages.
(Just going out from hospital, big blood pressure=20 problem...)
Thanks a lot for precious informati= on, of what=20 make fun still!
I recovered some ferrites N87 types= which should=20 work in 137 KHZ.
Another subject interests me, it is= the=20 possibility of transmitting with a big spool of several turns (a bit= as=20 WD2XDW). But EIRP is much weaker than with a vertical aerial,= then it is=20 necessary to "push more"  in power!
 
VY 73: Jeff
 
 
 
----- Original Message -----
From:=20 Rik Strobbe
Sent: Friday, July 03, 2009= 10:07=20 AM
Subject: Re: LF: Re: IGBT= in 136 KHz=20 TX?

Jeff, Marcus,

STGW30NC60WD has a turnoff del= ay of=20 120ns. Turn on delay and rise / fall times are better than 30ns.That=20 should be good enough for 137kHz, maybe even for 500kHz.
It fur= ther has a=20 max. Collector-Emitter Voltage of 600V, max. Collec= tor Current=20 of 60A (200A pulsed), max.. dissipation of 200W and a saturation= voltage of=20 2V (@20A).
Looks like a good "workhorse" for those who= want to=20 experiment with IGBT's.

73, Rik  ON7YD - OR7T

<= BR>At=20 22:05 26/06/2009, you wrote:
De= ar=20 Jeff,
 
havn't actually tried= it myself on=20 137 kHz. But from past experience I'd say that while IGBTs may= have less=20 DC loss, they are much slower (especially during turnoff). They= can be=20 used as effient switches at some tens of kHz, whereas MOSFETs wi= ll easily=20 go up to several MHz.
 
Kind=20 regards,
Markus, DF6NM
 
----- Original Message -----
From: F6CWN
To: rsgb_lf_group@blacksheep.org=20
Sent: Thursday, June 25, 2009 11:37 PM
Subject: LF: IGBT in 136 KHz TX?

Good night to all,

 =20
Anybody would have any experience on the us= e of IGBT in=20 136 KHz amplifiers?
Thanks in advance!
73: Jeff / F6CWN

 
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