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Registered Member #2416
Joined: Sun Oct 04 2009, 04:23AM
Location: Oceanside, CA
Posts: 91
The 10k ohm resistors don't have to be 2w. I used 1/4w and they're fine. But I'd use at least 5w 470 ohm resistors. Mine are 5w and they get hot at 40v.
Registered Member #2648
Joined: Sun Jan 24 2010, 12:45PM
Location: Australia
Posts: 291
HazzWold Labs wrote ...
GhostNull wrote ...
Both??? >.<
Okay i used...
2 x IRFP250 - 2 x Ultrafast diodes STTH1R04 - 2 x 15v 5W Zeners 1N5352BG - 1 x 680nf 850v MKP capacitor PP - And the resistors were just stated values of 470ohm and 10k, both of them were 2W and the inductor was one i pulled off an inverter microwave board.
Thanks! I guess I'll get those, some resistors and this inductor.
irf530 for transistors? whats the max power of the driver with these? my driver is built with these cheap transistors and the output arc can be seen here The power supply is 24v. And the 10k resistors can be under 2w. My capacitor is 0.68 uF wima red color.
Registered Member #1875
Joined: Sun Dec 21 2008, 06:36PM
Location:
Posts: 635
bgsniper-
Please use a better device for handling the wires carrying the output!
Tools like your pliers give a false sense of security, as the handles are just metal coated with plastic. Your body is effectively only millimeters away from that high potential... Given enough time it will eat through that insulation. It happened to me, but I was only working with a couple mA at most, so it was just a tingle... but a nip from that device of yours will be more than a tingle!
Good results, though.
IRF530 datasheet (third result of google search for "irf530 datasheet"):
Registered Member #2648
Joined: Sun Jan 24 2010, 12:45PM
Location: Australia
Posts: 291
Finally ordered the parts and finished building it. I ened up winding my own inductor and some SuperFETs that were on sale. My highest voltage source at the moment is 12v. Hopefully I'll be able to get something better soon and get bigger sparks!
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