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RE: LF: Re: IGBT in 136 KHz TX?

To: <[email protected]>
Subject: RE: LF: Re: IGBT in 136 KHz TX?
From: "Dave G3WCB" <[email protected]>
Date: Mon, 20 Jul 2009 23:18:47 +0100
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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.
 
 
Farnell UK also sell them:-
 
 
 
73, Dave G3WCB IO91RM
-----Original Message-----
From: [email protected] [mailto:[email protected]]On Behalf Of F6CWN
Sent: 20 July 2009 23:02
To: [email protected]
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 -----
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: [email protected]
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

 
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