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Registered Member #1430
Joined: Sun Apr 06 2008, 11:12AM
Location: Ã…rhus, Denmark
Posts: 102
hey guys. i was hoping you could tell me where on This (the usual single-transistor-driver) flyback driver i would connect a capacitor to charge it with the HV output.
tonight me and some of my friends are attempting to make a small flyback driven tesla-coil :D
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Solidacid wrote ...
hey guys. i was hoping you could tell me where on This (the usual single-transistor-driver) flyback driver i would connect a capacitor to charge it with the HV output.
tonight me and some of my friends are attempting to make a small flyback driven tesla-coil :D
thanks. Solidacid
Yes, you can but the sparks will be very small, and you will likely not get any streamers. The cap needs to be around 20-30kv i guess and a few 100 picofarads.
The flyback, however, has to be dc. You can actually get pretty good sparks with a bigger driver, like the ZVS or a halfbridge, and even the 555 driver will get you some ok sparks, but you may get more voltage from the flyback than the tesla coil depending on the power you run it at.
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
I have made arcs of over 300mm/1ft using a 1.4 watt flyback powering a spark gap TC. The thing is the repetition rate was very low (about 1 bang/second) Very roughly, the length of a TC arc is propotional sqrt(energy) so a low power flyback can slowly charge quite a large (e.g. 1 to 10 nF) primary capacitor if you don't mind a very low repetition rate.
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charging capacitors with a flyback?
