31 Dec '16, 12pm

Hacked CCFL Inverter becomes an Arc Lighter

Hacked CCFL Inverter becomes an Arc Lighter

[GreatScott!] needs to light off fireworks with an arc rather than a flame, because “fireworks and plasma” is cooler than fireworks and no plasma. To that end, he attempted to reverse engineer an arc lighter, but an epoxy potted high-voltage assembly thwarted him. Refusing to accept defeat, he modified a CCFL inverter into an arc lighter , and the process is pretty educational. With his usual impeccable handwriting and schematic drawing skills, [GreatScott!] documents that his CCFL inverter is a resonant Royer oscillator producing a sine wave of about 37 kHz, which is then boosted to about 2400 volts. That’s pretty good, but nowhere near the 15 kilovolts needed for a self-sustaining arc across electrodes placed 5 mm apart. A little math told him that he could achieve this by rewinding the transformer’s primary with only 4 turns. After some testing, the rewound transformer ...

Full article: http://hackaday.com/2016/12/31/hacked-ccfl-inverter-becom...

Tweets

A Singing Arc Lighter

A Singing Arc Lighter

hackaday.com 02 Jan '17, 6pm

We’ve all been guilty of buying things we want, but don’t need. And that’s how [PodeCoet] found himself in possession of a...