Re: Please help ! IGBT exploded ...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Rajesh Seenivasan" <rajeshkvs-at-hotmail-dot-com> 

Hello Jan and Sean,

The gate driver chips are really good, but I am not able to find any dealer
in my place who will sell me one or two chips.
(The minumum quatity should be greater than 50 and its always costly).
Could you please give me the circuit of gate driver using only discrete
components ?
As you said, the circuit should short the primary during dead time.
I'm using transistor H bridge to drive the primary, which doesnt pull
primary to zero volts
or short the primary during dead time.
Thanks in advance.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, March 09, 2004 7:46 PM
Subject: Re: Please help ! IGBT exploded ...


 > Original poster: Jan Wagner <jwagner-at-cc.hut.fi>
 >
 >
 > On Mon, 8 Mar 2004, Tesla list wrote:
 >  > Original poster: Sean Taylor <sstaylor-at-uiuc.edu>
 > <snip>
 >  > depending on how good your driver is at achieving ZCS.  Try using a
good
 >  > high current gate driver chip like the TC4420, or TC4421/2, or there's
a
 >  > couple TI chips, but I've never used them.  I can't remember the part
 >  > number off the top of my head, though I think Steve Ward's site (on
 >  > hot-streamer) has the info . . .
 >
 > UCC37322, UCC27322
 > 9A peak though they can take "only" 15V
 >
 > Nice parts, anyway. Free samples available, too ;-)
 >
 > regards,
 >   - Jan
 >
 > --
 > ****************************************************
 >   Helsinki University of Technology
 >   Dept. of Electrical and Communications Engineering
 >   http://www.hut.fi/~jwagner/ - jwagner-at-cc.hut.fi
 >
 >
 >