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Registered Member #989
Joined: Sat Sept 08 2007, 02:15AM
Location: São Paulo, Brazil
Posts: 476
Well, I am continuing my project DRSSTC, named for Zarc.
Now its a DRSSTC Running with IRG4PC50U :D
Few pics of the project Circuit design preview:
Coil preview:
Dissasembled toroid:
Test build:
More images in:
Results in DRSSTC mode:
Used a fullbridge of IRFP250N with a 141nF 3200V primary cap, running at 100us tOn, 750W input. Yeah I know, I over pushing the limit of the IRFP250N, and without a OCD... I dont know why it is surviving, but I ran the coil even for 10min without any heat at the mosfets. I Think its the first DRSSTC with IRFP250N.
The Bus voltage is about 150V, and 2000uF 400V eletrolytic cap.
- - - - - - - - - - - - UPDATED: 17/05/2010
I finished the build, but I wont make it work at DRSSTC mode because I have no IGBT's, and I will make another DRSSTC with mosfets, not that one...
IGBTS at DRSSTC: IRG4PC50U 140A Primary Peak Current 80cm Sparks to air Audio Modulated: <-- Playing Lady Gaga - Telephone <-- Playing Evanescence - Bring me To Life <--- Playing Coldplay - The Scientist
Registered Member #989
Joined: Sat Sept 08 2007, 02:15AM
Location: São Paulo, Brazil
Posts: 476
Thanks! I will test other mosfets in the place of IRFP250N, I thinking about using IRFP460 because the 500V Voltage cap, but I dont know if it will handle it. I will try.
I am using a normal SSTC circuit, 74HC14 -> 74HC08(with interrupter) -> TC4429
The only thing, its that my interrupter is for DRSSTC with 100us tOn and variable tOff. Soon I will finish my coil build, and test other mosfets like IRFP260 and 460.
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Zarc - Now DRSSTC - UPDATED: 03/03/2011
