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4hv.org :: Forums :: Tesla Coils
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DRSSTC Tuning, UD2.7C

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nzoomed
Thu May 26 2016, 11:59PM
nzoomed Registered Member #54503 Joined: Sun Feb 22 2015, 10:35PM
Location: New Zealand
Posts: 288
orac12 wrote ...

With some diodes across the gate resistors in anti parallel has removed all switching spikes.

That's great to hear!
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orac12
Fri Jun 17 2016, 10:36PM
orac12 Registered Member #9879 Joined: Tue Jan 29 2013, 05:00AM
Location: New Zealand
Posts: 37
Quick video.

Link2

Need to build a new mmc
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nzoomed
Sat Jun 18 2016, 05:25AM
nzoomed Registered Member #54503 Joined: Sun Feb 22 2015, 10:35PM
Location: New Zealand
Posts: 288
orac12 wrote ...

Link2

Need to build a new mmc
Are you wanting to raise its capacity or current/voltage rating?
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orac12
Sat Jun 18 2016, 07:06AM
orac12 Registered Member #9879 Joined: Tue Jan 29 2013, 05:00AM
Location: New Zealand
Posts: 37
nzoomed wrote ...

orac12 wrote ...

Link2

Need to build a new mmc
Are you wanting to raise its capacity or current/voltage rating?

It's lacking in current rating.
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nzoomed
Sat Jun 18 2016, 07:23AM
nzoomed Registered Member #54503 Joined: Sun Feb 22 2015, 10:35PM
Location: New Zealand
Posts: 288
Im wondering if i need to raise mine more, although with OCD cutting at 600A, im getting streamers about 1.5M long! So i should hit the 2M mark easily at 700A.

Im concerned that i should have cooling added to mine, how hot do these typically get? I do feel some warmth on it if i put my hand up to it after use.

The IGBT's on the other hand, well the heatsink still feels cold, so i guess thats a good sign that the IGBT's are handling it fine?
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