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Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
The turn off delay time of the IGBTs is 440 ns. I think you will have a really hard time getting it to work at 200 kHz (Might work OK at this frequency in a ZCS application like a DRSSTC, but in the classic Mazilli circuit a voltage is forced across the transistor right after it's supposed to turn off, if it takes a while for it to turn off then a lot of energy is burned at every switching transition).
Registered Member #4497
Joined: Thu Apr 19 2012, 12:53PM
Location: Behind you
Posts: 62
Dr. Dark Current wrote ...
The turn off delay time of the IGBTs is 440 ns. I think you will have a really hard time getting it to work at 200 kHz (Might work OK at this frequency in a ZCS application like a DRSSTC, but in the classic Mazilli circuit a voltage is forced across the transistor right after it's supposed to turn off, if it takes a while for it to turn off then a lot of energy is burned at every switching transition).
PS. A topload helps.
okay, but i will wind it anyway, another way is to get some "Free samples" of fast and powerful IGBTs :D
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How mad (possible) is this idea?
