High Voltage Forum

Tesla coils => Dual Resonant Solid State Tesla coils => Topic started by: SAMGO on July 13, 2019, 04:17:55 AM

Title: DRSSTC in brust mode
Post by: SAMGO 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 :)
Title: Re: DRSSTC in brust mode
Post by: johnf on July 14, 2019, 01:22:15 AM
Did you mean Burst mode??
Title: Re: DRSSTC in brust mode
Post by: Mads Barnkob 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.
Title: Re: DRSSTC in brust mode
Post by: SAMGO on July 16, 2019, 02:25:27 AM
ahhahah ops yeah I was meaning burst mode. Thank you I was thinking that the on-time was the same but it's logic!  :)