Taser more than 1K volts powered by a 3 volt coin cell

1049

1d 00:18:58

This circuit can be built using a small audio transformer.  It also has a capacitor that will continue oscillations after the button is released for at least half a second each time. The 1mF cap is on the low tension side of the transformer. It could be a 16 volt electrolytic. 

Alternatively,  if you have a iron core toroid available or one that comes from a dead computer power supply, you can wind the transformer yourself. The size or thickness of the wire windings is not important. Just the number of turns. The Internet is full of sites that explain how to wind toroidal transformers.

This circuit could be built into a plastic enclosure a little bigger than a PP3 9 volt battery. It will require a safety switch and two prongs capable of puncturing clothes. It won't kill anyone but it certainly is capable of being a deterrent to abusive or violent action. 

Note: in no way do I advocate the use of this type of circuit. This circuit is provided for educational purposes only.

published 11 years ago

Conan777

11 years ago

hurz

11 years ago

1mF for about 200V as condensator is not a very handy taser 😆

zorgrian

11 years ago

It's on the low tension side of the transformer. A 16 volt cap would be OK.

zorgrian

11 years ago

It's true that the voltage experienced by the cap will be approx +-100 volts but it's not for very long. I.e as both the duration and the frequency of use will short a low voltage electrolytic cap should be fine

hurz

11 years ago

I'm not so sure electrolyt ones will like this reverse 100V.

hurz

11 years ago

Another issue ;-) put 2k ohm as human body dummy load and measure the current. In case you can make such a transformer I think it a dangerous circuit! I would lower the cap for higher frequency and higher output impedancy "10H × 6.283 × freq" and put an current limiting resistor at primary side to make this toy less annoying

zorgrian

11 years ago

I would prefer to use corrupt politicians as a dummy load or perhaps just feed them to very hungry crocodiles

zorgrian

11 years ago

Well I built a version of the circuit. I wound the transformer on a iron core toroid (10 mm diameter using. 0.25 mm magnet wire )

zorgrian

11 years ago

The results are that yes I had to increase the frequency and yes the 16 volt capacitor gets quite hot.

hurz

11 years ago

;-)

zorgrian

11 years ago

The frequency increased due to the fact that my transformer doesn't have anything like as much as 10H. With the 1mF cap I read about 30 Hz. Maybe the inductance of low tension winding is about 25 my?

zorgrian

11 years ago

25 mH

sasa999

8 years ago

T=2*3.14*sqr(L*C) Thomson?

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