Flyback Transformer Drivers





Introduction: Flyback Transformer Drivers

This instructable is the seventh one that I made. This instructable is about how to make a fly back transformer driver. There are two that I will show, one that is mechanical, and one that is solid-state (for the more technologically advanced). My inspiration for this instructable was that I made a mechanical driver, then it died; so I bought another one but decided to make a solid-state one.

Warning: this instructable deals with high voltage, so you could get shocked and potentially killed. I take no responsibility for any damage, injury, or death.

P.S.  The picture you see on this page is copied and pasted from Google, so it's not this good or high power.

Step 1: Parts for Simple Driver

These are the parts that you need for a simple fly back driver. The pros are that it's simple to build and lasts a long time. The cons are that it doesn't make as big sparks as solid-state drivers, and it's very noisy.

1- 5 volt relay
?- wires
1- 6 volt power source
1- fly back transformer with pins identified
1- on/off switch (optional)

1- soldering iron
1- solder wire
1- helping hands station (optional)

Step 2: Schematic for Simple Driver

This is the schematic for the simple driver. Just wire the relay like the picture has it. The two wires sticking on the bottom is what you connect to the power source and transformer. Just follow schematic #2 to see how to connect it all.

Step 3: Parts for Solid State Flyback Driver

These are the parts that you need for the solid state driver. The pros are that it makes bigger sparks. The cons are that it's harder to make.

1- 6 volt power source
1- on/off switch (optional)
1- fly back transformer with pins identified
1-555 timer ic
1-power transistor (see schematic and text file)
1-0.01 uf capacitor
?-resistors (it depends on whether you use the schematic or my info in the text document)
?- wires

1- soldering iron
1- solder wire
1- helping hands station (optional)



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    Have you tried the simple driver does it work and if it does at what frequency I want to replicate please help

    The simple driver runs at a relatively low frequency, probably under 100 Hz.

    It really depends on the size of your relay, bigger relays run slower than smaller relays.

    Technically no because it isn't near the resonant frequency of the flyback, but actually yes (more like kind of) because you'll still be able to draw sparks from it, just they will be smaller and less powerful.

    How many cm or mm sparks can I expect from the relay and the 555 timer

    Depends on the input voltage/current/frequency.

    Excuse me, I have a question. Will the reverse voltage spikes not damage the 555 chip?

    It's possible, you should probably use some kind of diode for protection.

    I have actually burned 555 chips from shorting out the output of the flyback.