Krumlink
New Member
Ugh, found what I was looking for. Overall none of you came close ![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Another Coilgun Site
Thanks anyways.
Another Coilgun Site
Thanks anyways.
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Maybe you can get some insight from the following article.
**broken link removed**
The circuit mikebits posted the link to will do it without the diode capacitor tripler.Your circuit is a boost converter.
Good luck getting 600V from it at any decent power level though.
Look at the Maxim, Linear and Nationtal websites for boost converters and you're bound to come across some good ideas, even if they need adapting to get 600V.
Not to mention it would be huge. This circuit is compact and easy to integrate.
108J is not that much. J=W*S so to charge his 600uF to 600V takes 4 seconds at 27W, 35W or 5 seconds with losses.Who said anything about huge? Transformers are available in 1" cubes. And a 555 timer cicruit is nothing, even if you decide to go through-hole. A MOSFET could handle reasonable current with a small heatsink. Ever seen inside a PC's PSU? nothing major in there and they run at 600W+
If you want to charge a 960uF cap bank to 700-800V in seconds. Do the maths (I refuse to exclude the 's' ^^) , work out E, then you can work out what power you would need for a certain charge time. Of w're talking 20 seconds, then thats, what...er..12W? At 700V thats 18mA.
As someone has already pointed out, getting a large voltage from a boost convertor is tricky. Sure 12 -100V is simple enough...but 600? I'm sure theres plenty of info on the web about this. Not only for coil guns but exploding wires, lorentz cannons, rail guns...all require large joule cap storage for anything fun.
Blueteeth
Good idea, I am surprised I did not think of it... particularly since I just finished designing one!You could use a cold cathode tube inverter with a variable DC voltage on the input and a rectifier on the output.
what i meant was that on that website where I got the circuit he said that he could charge at that rate. (banana nut muffins OMFG!)