Flyback sparks

Sparks obtained from a small flyback. Comparing sparks between balls, ball and point, and between points. There is a 500 kOhm resistor in series with the flyback output and a 50 pF capacitor (a Leyden jar) across the spark gap.

Category:

Science & Technology

Tags:

• flyback
• 555
• sparks
• faíscas

[BodOmLaw]

Because im really curious, can you light a cigarette off of that arc? How many kV?

[acmdq2007]

Yes. The spark is very hot. About 20 kV.

[hvhaxor]

why did you use resistors? that lowers the current allot

[acmdq2007]

I wanted a comparison of spark length using balls and points. With small power the control is better, because there is no intense heating. The flyback used also doesn't last much without current limitation.

[hvhaxor]

i have pushed a flyback well over 700 wats so i think your fine there ... and if its a dc flyback useing resistance rounds out the feedback so if you use a transistor or a ZVS driver you will also reduce voltage

[acmdq2007]

The breakdown voltage is not reduced. There is no current in the resistor before the sparks, and so no voltage drop..

[alex681219]

It works under water? I saw some guys that make h2 from sparks under water

[PhatalPhury]

I've got balls of steel.