Return-Path: Received: from rly-de01.mx.aol.com (rly-de01.mail.aol.com [172.19.170.137]) by air-de06.mail.aol.com (v124.15) with ESMTP id MAILINDE061-4b04a65e08029d; Tue, 21 Jul 2009 11:36:48 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-de01.mx.aol.com (v124.15) with ESMTP id MAILRELAYINDE015-4b04a65e08029d; Tue, 21 Jul 2009 11:36:33 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1MTHNR-0008FF-28 for rs_out_1@blacksheep.org; Tue, 21 Jul 2009 16:35:37 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1MTHNQ-0008F6-5U for rsgb_lf_group@blacksheep.org; Tue, 21 Jul 2009 16:35:36 +0100 Received: from ttsmtp-4.cpwnetworks.com ([62.24.128.245] helo=ttsmtp.cpwnetworks.com) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1MTHNM-00040b-A9 for rsgb_lf_group@blacksheep.org; Tue, 21 Jul 2009 16:35:34 +0100 X-Path: TalkTalk-smtp X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ar0EAIZ9ZUpcHCup/2dsb2JhbACCJy2CG4gbBsVlhAwF Received: from unknown (HELO mal769a60aa920) ([92.28.43.169]) by ttsmtp.cpwnetworks.com with SMTP; 21 Jul 2009 16:35:24 +0100 Message-ID: <003601ca0a18$dd7e1140$0301a8c0@mal769a60aa920> From: "mal hamilton" To: References: Date: Tue, 21 Jul 2009 16:35:23 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,MAILTO_TO_SPAM_ADDR=0.276 Subject: Re: LF: Re: IGBT in 136 KHz TX? Content-Type: multipart/alternative; boundary="----=_NextPart_000_0033_01CA0A21.3EB10EB0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=2.0 required=5.0 tests=HTML_30_40,HTML_FONTCOLOR_BLUE, HTML_MESSAGE,MAILTO_TO_SPAM_ADDR 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_0033_01CA0A21.3EB10EB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MF GRP Apart from having a few in the junk box is there any advantage over a= similar spec FET, ie reliability esp class E de mal/g3kev ----- Original Message -----=20 From: Dave G3WCB=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Monday, July 20, 2009 11:18 PM Subject: RE: LF: Re: IGBT in 136 KHz TX? Jeff, Rik, Markus, Mouser GB sells the STGW30NC60WD IGBT, at =A33-60 each. See the link= below. You can download a data sheet from the same site. http://gb.mouser.com/search/ProductDetail.aspx?qs=3DbbdZqDPQhEUJJb0Z= 4VAXWQ=3D=3D 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_gro= up@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 transmittin= g with a big spool of several turns (a bit as WD2XDW). But EIRP is muc= h weaker than with a vertical aerial, then it is necessary to "push mo= re" in power! VY 73: Jeff ----- Original Message -----=20 From: Rik Strobbe=20 To: rsgb_lf_group@blacksheep.org=20 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 ris= e / 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. Co= llector 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, =20 havn't actually tried it myself on 137 kHz. But from past expe= rience I'd say that while IGBTs may have less DC loss, they are much= slower (especially during turnoff). They can be used as effient switc= hes at some tens of kHz, whereas MOSFETs will easily go up to several= MHz. =20 Kind regards, Markus, DF6NM =20 ----- Original Message -----=20 From: F6CWN=20 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 use of IGBT in 136= KHz amplifiers? Thanks in advance! 73: Jeff / F6CWN=20 =20 ----------------------------------------------------------------------= -------- No virus found in this incoming message. Checked by AVG - www.avg.com=20 Version: 8.5.375 / Virus Database: 270.13.20/2250 - Release Date: 07= /20/09 06:16:00 ------=_NextPart_000_0033_01CA0A21.3EB10EB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
MF GRP
Apart from having a few in the junk= box is there=20 any advantage over a similar spec FET, ie reliability esp class E
de mal/g3kev
 
 
----- Original Message -----
From:=20 Dave G3WCB
Sent: Monday, July 20, 2009= 11:18=20 PM
Subject: RE: LF: Re: IGBT in= 136 KHz=20 TX?

Jeff, Rik, Markus,
 
Mouser GB sells the STGW30NC60WD=20 IGBT, at =A33-60 each. See the link below. You can download= a data=20 sheet from the same 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 mysel= f with your=20 messages.
(Just going out from hospital, big blood pressure=20 problem...)
Thanks a lot for precious informa= tion, of what=20 make fun still!
I recovered some ferrites N87 typ= es which=20 should 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=20 is necessary to "push more"  in power!
 
VY 73: Jeff
 
 
 
----- Original Message -----
From:=20 Rik Strobbe
Sent: Friday, July 03, 20= 09 10:07=20 AM
Subject: Re: LF: Re: IGBT= in 136 KHz=20 TX?

Jeff, Marcus,

STGW30NC60WD has a turnoff= delay 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= further has=20 a max. Collector-Emitter Voltage of 600V, max. Co= llector=20 Current of 60A (200A pulsed), max.. dissipation of 200W and a sa= turation=20 voltage of 2V (@20A).
Looks like a good "workhorse" fo= r those=20 who want to experiment with IGBT's.

73, Rik  ON7YD= -=20 OR7T


At 22:05 26/06/2009, you wrote:
= Dear=20 Jeff,
 
havn't actually tried= it myself=20 on 137 kHz. But from past experience I'd say that while IGBTs= may have=20 less DC loss, they are much slower (especially during turnoff)= . They can=20 be used as effient switches at some tens of kHz, whereas MOSFE= Ts will=20 easily 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= use of IGBT=20 in 136 KHz amplifiers?
Thanks in advance!
73: Jeff / F6CWN

 


No virus found in this incoming message.
Checked by AV= G -=20 www.avg.com
Version: 8.5.375 / Virus Database: 270.13.20/2250 -= Release=20 Date: 07/20/09 06:16:00
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