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This instructable is the seventh one that I made. This instructable is about howto make a fly back transformer driver. There are two that I will show, one that ismechanical, and one that is solid-state (for the more technologically advanced).My inspiration for this instructable was that I made a mechanical driver, then itdied; 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 andpotentially 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'snot this good or high power.

(http://cdn.instructables.com/FIT/CJ92/GMX1SCQS/FITCJ92GMX1SCQS.LARGE.jpg)

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I am a total nerd who likes to programrandom things, work on the physics ofspace travel, build electronic things and isobsessed with space :p

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Step 1: Parts for simple driver

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

Parts:1- 5 volt relay?- wires1- 6 volt power source1- fly back transformer with pins identified1- on/off switch (optional)

Tools:1- soldering iron1- solder wire1- helping hands station (optional)

Step 2: Schematic for simple driver

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(http://cdn.instructables.com/F5R/RGPO/GMX1SN65/F5RRGPOGMX1SN65.LARGE.jpg)

flyback transformer (/tag/type-id/category-

technology/keyword-flyback+transformer/)

transformer driver (/tag/type-id/category-

technology/keyword-transformer+driver/)

Flyback Driver circuit.(/id/Flyback-Driver-circuit/)by Mahitchima(/member/Mahitchima/)

2n3055 flyback drivers(/id/2n3055-flyback-drivers/)by theVader75(/member/theVader75/)ZVS flyback transformervideo (/id/ZVS-flyback-transformer-video/)by Alex1M6(/member/Alex1M6/)Quick and easy step uptransformer driver(/id/Quick-and-easy-step-up-transformer-driver/)by sdobbie (/member/sdobbie/)Super Simple PowerfulFlyback Driver (/id/Super-Simple-Powerful-Flyback-Driver/)by JoeBeau

This is the schematic for the simple driver. Just wire the relay like the picture hasit. The two wires sticking on the bottom is what you connect to the power sourceand 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 itmakes bigger sparks. The cons are that it's harder to make.

(http://cdn.instructables.com/FI6/V7D9/GMFIQ9QL/FI6V7D9GMFIQ9QL.LARGE.jpg)

(http://cdn.instructables.com/FCB/RCBZ/GNBETQ80/FCBRCBZGNBETQ80.LARGE.jpg)

(http://cdn.instructables.com/FSL/2MQG/GVIYJKFD/FSL2MQGGVIYJKFD.LARGE.gif)

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Flyback Transformer Drivers by techno guy (/member/techno+guy/)

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1 year ago Reply

Parts:1- 6 volt power source1- on/off switch (optional)1- fly back transformer with pins identified1-555 timer ic1-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 textdocument)?- wires

Tools:1- soldering iron1- solder wire1- helping hands station (optional)

diagram info.txt (/files/orig/F48/0ISG/GVA8VE20/F480ISGGVA8VE20.txt)388 bytes

-max- (/member/-max-/)

see what happens if you add a film capacitor across the +V and the positiveend of the flyback. i did this with a very similar circuit with a ignition coil and itgave me much better output (from <1mm sparks to 20 mm long sparks)

Electrospark (/member/Electrospark/) -max-

Do you mean in series with the flyback transformer?

-max- (/member/-max-/) Electrospark

In parallel. That way you make a L1 tank circuit. It has to be well tunedso first without it figure out how many turns gives you the most output,then start adding various film or MKP capacitors to see what worksbest.

That wasn't exactly my original idea but it will do exactly the samething.

Electrospark (/member/Electrospark/) -max-

Hmm... Yeah, I saw this configuration on the ZVS circuit.

I might give it a try but people don't want me to play with high voltage...

But it's so much fun... :( I guess I'll have to go with second best andwatch photonicinduction's videos. :)

ahime1 (/member/ahime1/)

Does the capacitor have to be a 0.01uf or can it be bigger?

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3 years ago Reply

techno guy (/member/techno+guy/) (author) ahime1

for the solid state one, it could be different, but the frequency wouldchange.

XOIIO (/member/XOIIO/)

Would any old power transistor work? I've taken apart quite a few powersupplies form things lately and have a couple dozen transistors/MOSFETs thatare attached to heatsinks.

techno guy (/member/techno+guy/) (author) XOIIO

they should work, but I recommend that you look up datasheets forthem and see what their ratings are

XOIIO (/member/XOIIO/) techno guy

Thanks, I was also wondering, I have this capacitor(http://i988.photobucket.com/albums/af1/XOIIO/IMG_02061_zps498ff924.jpg),should that work fine? I'm not sure if I need a DC or AC capacitor, and Imay not be able to find one, would it work without the capacitor?

techno guy (/member/techno+guy/) (author) XOIIO

if it's for the solid state circuit, then yes it has to be a DC cap, also if it'sfor the solid state one, then it needs a capacitor for timing.

crockman1 (/member/crockman1/)

woa siiiiick ima make this issht son im working on a battery powered tesla coilrite now im gonna post that when i get done. im trying to make a big mineral oilcap to hold alotta charge right now

Lectric Wizard (/member/Lectric+Wizard/)

The circuit in step2 is very similar to the old "vibrators" they use to use inVacuum tude car radios, so us dinosaurs could listen to our music. A smallcapacitor .1uF or so across the relay contacts might make it last longer ( keepsthe arcing down). Good job on the 'able. Cheers !

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