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Forums
4hv.org :: Forums :: Electromagnetic Projectile Accelerators
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charging circuit

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lewylln
Wed Mar 02 2011, 06:53AM Print
lewylln Registered Member #3358 Joined: Mon Oct 25 2010, 09:47AM
Location:
Posts: 20
alright i have the construct, cap bank and everything working perfecting, the rails are in line and all that however when i charge the cap bank and fire the feed back (guessin thats the term) literally blows my charging circuit. Im using a camara circuit board as most ppl seem to use but it doesnt handle the brunt of the charge as it returns from the cap bank (i really hop i get this right). so im wonderin wat i could use to replace this and make a circuit from scratch which can handle the full force of lets say, my 50 cap bank at 300v and (guess i dunno) like 100-200uf charge. If any1 can gimme ideas on how to build this or a way to get the charge it'll be appreciated. My only current idea is to buy or make a 1:20 (or something of the sort) charge transformer to up the voltage but im not sure how smart or wise that is.
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lewylln
Tue Mar 08 2011, 03:07AM
lewylln Registered Member #3358 Joined: Mon Oct 25 2010, 09:47AM
Location:
Posts: 20
so no1 has no clue as to wat i could do?
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genious 7
Tue Mar 08 2011, 03:18AM
genious 7 Registered Member #2887 Joined: Sat May 29 2010, 11:10PM
Location: Panama City, Panama
Posts: 107
You did place diodes to avoid negative voltages due to indutance, didn't you?
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Andyman
Tue Mar 08 2011, 04:02AM
Andyman Registered Member #1083 Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256
You should be charging through a resistor, and also disconnecting the charging circuit before firing
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Turkey9
Tue Mar 08 2011, 07:47AM
Turkey9 Registered Member #1451 Joined: Wed Apr 23 2008, 03:48AM
Location: Boulder, Co
Posts: 661
Revert to what all people who have asked this question are told: use Uzzor's boost converter. Simple, powerful.
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lewylln
Wed Mar 09 2011, 07:16AM
lewylln Registered Member #3358 Joined: Mon Oct 25 2010, 09:47AM
Location:
Posts: 20
scratch that last one, im lookin into the " Uzzor's boost converter" sounds good to me
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haxor5354
Fri Mar 11 2011, 04:01AM
haxor5354 Registered Member #2063 Joined: Sat Apr 04 2009, 03:16PM
Location: Toronto
Posts: 352
coil your own flyback transformer to output about 300volts and drive it with Mazilli's flyback driver
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