Plasma evolution at 240fps
|
|
Goodchild
|
|
Registered Member #2292
Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
|
Nice! Love the decay at the end as the spark fades out.
I have two question: What spark length are you pushing on this thing?
Also is this using your new fancy water block?
|
Back to top
|
|
Steve Ward
|
|
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
|
What spark length are you pushing on this thing? The length to the ceiling is 56".
And ironically i measure the top voltage to be about 56kV after my recent probe-recalibration.
1 kV per inch :) You couldnt have guessed more right .
Also is this using your new fancy water block? You mean this one?
http://www.flickr.com/photos/kickermagnet/8600938087/in/photostream
Not yet, but im finally installing it for tests. Im pretty happy with the performance of a similar water block i made which was able to do 150W dissipation on a TO-247 with a kapton isolator. This test was also with a smaller mosfet which had more internal thermal resistance, so the IGBTs that this project uses would be able to do 200W dissipation (die temp around 110C). I calculate that i need each IGBT to do 50W worst case which should be pretty easy if i can keep my coolant temp to 60C or less. I plan on reusing this bridge design for some other projects too, so i hope my math is right!
|
Back to top
|
|
Intra
|
|
Registered Member #2694
Joined: Mon Feb 22 2010, 11:52PM
Location: Russia, Volgograd (Stalingrad).
Posts: 97
|
It's sad.. Anyway it is awesome. =)
|
Back to top
|
|
Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob
|
|
Powered by e107 Forum System
|