You’ll want to attach a length of wire to that pin to prevent it from getting too hot and melting. The corona extends up to 3cm into the air, and once struck the arc can be pulled up to little over 5cm. So check it’s temperature and use a higher wattage one if necessary. However, if safety precautions are taken, some marvelous high frequency arcs can be generated. The capacitor will absorb most of the high voltage transients occuring doing switching of the load. Next is to insulate the ferrite core ferrite is partially conductive.

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A flyback is not a toy! As for the duster cans, thats an flynack way which doesn’t last too long, and the heat shock of degC against the transistor can’t be good for it.

POWERLABS’ High Voltage Solid State Flyback Driver

Now you have this circuit running, and you have played with it’s beautiful arcs, maybe fried a few bugs or cooked a grape, and burned some paper, and you wonder what it can be really used for Powered flybcak e Forum System. D Back to top.

Requires Windows MediaPlayer Left click and select ‘save target as’ to your hard disk. First remove the original primary windings remember that in a good flyback these should be separate from the secondary. As the arc is drawn, it develops into a high pitched hiss and slowly increase in frequency until it becomes ultrasonic above 20,hz and it becomes quiet.

Remember that ferrite ceramic is partially conductive, so it is a good idea to insulate the primary from the core with either a plastic coil form, or some turns of good quality insulation tape. I have the diode but not the capacitor.


With a cascadevery high outputs can be obtained. Although it seems as though it won’t become hot as like R1, current inducted on feedback fpyback uses R2 to reach the ground and this should be added to the calculation. Because of this, they output a high frequency, low voltage current that just happens to be perfect for driving a flyback! Both air and xenon arcs are clearly visible. But now there is no feedback current to keep the transistor off, so it will once again conduct, and the cycle will repeat, at a natural frequency that puts the transformer in resonance, resulting in enormous voltage gain.

Flyback Driver Circuits

The driver is built on a piece of vero board with multiply resistors to obtain the needed wattage rating, this is far from optimal as the load sharing between them is horrible, to ensure better sharing. However, if safety precautions are taken, some marvelous high frequency arcs can be generated. Compare this with an old-school flyback on the right with a fatter secondary.

October 10, at This web site requires that javascript be enabled. After I figured this out, I was able to push up to 5A max capabilities of my PSUwhere arc over of the flyback pins started to occur, melting charring one of the alligator clip insulating boots slightly.

Here in a 1sec exposure, you can see the arcs rising up towards the top and extinguishing. How this came into being, what it is for. For example, as the arc is struck and drawn longer, the frequency increases from sub 20kHz to more than 20kHz, and becomes ultrasonic resulting in a beautiful, whisper quiet spark.


The capacitor will absorb high voltage spikes that could come from inductive kick back from the transformer. For the main cap I used a uF Cap.

I just built the ZVS driver pretty much identical to yours. These electronic transformers deal away with the heavy iron core of a normal transformer and run at a high frequency of around 20kHz to 2n33055 the size and weight. Either way, removing it is a good idea if you’re able to. This propels the wire in a circle and keeps spinning.

I got to work by quickly setting up two metal wires and connected them to my flyback. The secret is to use a switch mode power supply 12V transformer such as the clyback below. Want to support me? You should also check that the HV is arcing to the correct return – an easy way to find out is to simply bring the HV wire to the bottom of the flyback.

2n flyback driver | Kaizer Power Electronics

Here you can see my Fltback Ladder setup. All we need for an excellent flyback driver! It improves performance in most cases and in some cases it improves it quite dramatically Back to top.