555 TIMER BASED FLYBACK TRANSFORMER DRIVER

Is it possible to use this circuit to obtain more than V, say kV? Because, I have no that. Learn how your comment data is processed. Neon needs about 80V or higher in order to light up. Mosfet will not necessarily be destroyed if body diode is rated to take repeated avalanche. So far I have only used the original primary v.

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A simple method to get a more accurate estimate of your voltage might be to build a voltage divider with a sufficiently high resistance that you don’t bleed off too much power, and then to measure the rms voltage across that.

Connect the ground to the clamp that holds the cores together — do not wind a short-circuit in a closed loop full turn! Check all your connections, see if the is latching up, and if all else fails try a different flyback and remake the circuit. Actually, i have two now, because i blew up one because i didnt know what i was doing.

The timer is in astable mode, generating a frequency from about 22kHz to 55kHz, depending on the position of the potentiometer. I tried a couple of lantern batteries in series but I seem to get bugger all volts through the circuit and pretty much nothing at the transformer.

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Flyback Transformer Drivers

I love the way you explain each step. At last, I could get an arc out of it. Very nice description to get a good arc. But when I bases to the primary, the current goes up to 3 Amps, and the transistor starts to heating up a LOT.

So, make sure your polarity is correct. Above is the Eagle CAD board layout. There is an arc!. I was using a lab power supply to run the and the mosfet. Tranzformer just check that everything is wired correctly, if it is, check that all the parts are functioning. Fewer turns mean higher voltage, but increased mosfet power dissipation. That corona flybqck between the high-voltage anode and a concrete wall is also spectacular. Make sure you use a mosfet and not a bipolar junction transistor, the symbol in the datasheet should resemble the one in the schematic.

It might burn or damage.

Construct the circuit according to the schematic, then work out your own perks. Input power is v DC, as the oscillator circuit is fed from an independent LM linear supply. This website timed cookies to improve your experience. Thanks very much for your help. Thaks for your help ;D. Thanks for the reply. Tired of measly sparks? I got some nice fat sparks, the longest being like 4 cm.

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I mean, this is quite a low-efficiency driver to waste a solid good IGBT on. I tested between 3 to 15 V and i can get 3 A and some 2 cm fylback but everything is going wrong because of electromagnetic interference. How do I connect more than 12v? What transforner you test the circuit with before you put the re-charger across it and how much current should the circuit draw?

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Could you email the circuit and list of components you used to build your Monster driver? It is currently set to run between kHz, which should be a large enough range to sweep through any harmonics a flyback may have. For general use, 3 to 10 turns should be right for this driver. The amplitude of the spikes is in the millivolt range.

Unless you have one of these multimeter, you should get the resistance reading out of it.