Re: IGBT Types

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Steve Ward <steve.ward@xxxxxxxxx>

Hi Malcolm,

For my smaller coils i use the HGT1N40N60A4D from fairchild, rated
110A 600V at 25C.  I typically push them to 500A or better.  My
half-bridge coil produces 3 foot sparks (limited by secondary size,
only 11" tall).  The full-bridge coil produces 6' sparks, again
limited by a 22" long secondary.  I have tested these IGBTs to 1100A
pk at 100khz and 200uS burst duration at 120 bps.  I havent had a
single IGBT failure since employing primary feedback, even when
operating them at 1000A plus.  All of my coils seem completely
reliable aside from an MMC cap failure i had which i yet dont fully
understand how or why.

For the big coil i use a full-bridge of CM300DY-24H modules from
powerex.  300A at 1200V continuous.  They only run some 700A pk with a
300uS burst duration to produce 10' or better streamers.  They could
be pushed far greater, and i will be working on that shortly.

Steve Ward

On 7/6/05, Tesla list <tesla@xxxxxxxxxx> wrote:
> Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>
>
> Greetings all SS Coilers,
>                             I'd appreciate it if those who are using
> IGBTs would let me know the part numbers/types they are using and
> power levels the coils they are being used in are run at (or have
> been run up to non-destructively). If this is deemed to be noise then
> I'd be grateful to accept replies offlist.
>
> Thanks in advance,
> Malcolm
>
>
>