Stoneridge Engineering Home |
|
Stoneridge Engineering Home |
Posted by Jon Anyway, this setup generates a spark of about 1/3 of an inch to ground return. OK, not bad but I need a lot more energy. So, I figure I need a capacitive discharge to dump a lot of coulombs quickly. However, ideally I'd also like to be able to maintain the arc as long as I want. Can you give me some safe and reliable circuit ideas? What I built is not giving me enough "juice" to re-create the problem. Thanks. Jon
on 11/22/2005, 2:03 pm
208.253.34.178
I have looked at a number of schematics on the Web but would like some expert advice. I am trying to re-create a failure mode in a piece of electronic equipment that we believe is caused by a fast transient discharge. To simulate the real world problem, I started with an MSD Blaster 2 coil (rated 45KV max, 1:100 turns ratio) and a relay to simply pulse the primary voltage, which is a 120Vdc power supply that current limits at about 2.5A. BTW, I had to use a relay switched manually because, for some reason, the 555 500Hz oscilltor I built as a driver was getting loaded down. Perhaps using isolation, such as a FET or IGBT, would be bettter to drive the coil with rather than the 555 output directly. 
Message Thread:
« Back to thread