Author Topic: DRSSTC in brust mode  (Read 67 times)

Offline SAMGO

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DRSSTC in brust mode
« on: July 13, 2019, 04:17:55 AM »
Hi,
Recently I seen some video of TC blowing up in brust mode. There is something to take care of in this specified mode? Also what if I make only 1 pulse composed of 10 cicles ? Normally I would think that there is no problem at all but let me know if you have some personal experiences :)

Offline johnf

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Re: DRSSTC in brust mode
« Reply #1 on: July 14, 2019, 01:22:15 AM »
Did you mean Burst mode??

Offline Mads Barnkob

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Re: DRSSTC in brust mode
« Reply #2 on: July 14, 2019, 02:04:22 PM »
Burst mode is when you have longer on-times, but lower BPS, so you get this long roaring burst of sparks for maybe 500-1000us but only a 10-20 times a second.

You have to look at the average on-time to compare it to f.ex. 200us and 200 BPS, what kind of heat dissipation that gives you in the IGBT die or MMC capacitors, a too long burst can easily rise the temperature of the die by 50-100 degrees if its too long and that is asking for trouble if you have a too high BPS.
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Re: DRSSTC in brust mode
« Reply #2 on: July 14, 2019, 02:04:22 PM »

 


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