Battery powered high voltage multiplier for gas igniter or stun gun
By Radu Motisan Posted on September 8th, 2011 , 19028 Views (Rate 23.12)
Here's a compact device that will take 9V in (using a small battery) and output high voltage close to 10KV.
It uses a small Armstrong feedback oscillator, a small ferrite core with a high voltage secondary (from TV), and a multiplier. The schematics for the oscillator can be found here.
The flyback output is close to 5KV. The multiplier is a 4 stages Villard cascade.