Home  |  Circuit diagrams  |  Electronics projects  |  Store  |  Links  |  Contact  |  Privacy policy  |  Sitemap

..::::..





Yongnuo Flashes

High Voltage Stun Gun

High Voltage Stun Gun

Read before building: This device produces high voltage pulses discrupting muscles and nervous sYstem, leaving anyone who touches it in a state of menthal confusion. Can be used agains ferocious animals or attackers, BUT REMEMBER, this device may be illegal in your state (for eg where I live, these devices are banned). It is quite dangeros for peoples experiencing cardiac problems, and for electronic equipment (like peacemakers), since it generates some RF. Don't attept irresponsible actions with this device, it is not a toy.

After the introduction let's pass to the circuit.
The 555 IC is wired as a astable to produce square wave with adjustable freq and duty cycle (notice the potentiomenters and diode). This square wave is feed to a IRF840 Mosfet (no need of totem transistors since freq is low and the IC has enough current capability to rapidly charge/discharge the gate). As a substitute of the mosfet, a bipolar transistor can be used (and a 100ohm resistor between 555 and base of the transistor). Valid BJT can be BU406, but also smaller BJT can be ok, keep in mind that it must handle at least 2A continuous. The inductive kick snubber isn't needed because the power is low and it is almost totally adsorbed to charge the tank capacitor, in addition since this device is battery operated we don't want to dissipate the power on a resistor but we want it in sparks. With a snubbing network you will experience lower firing rates. USE A PUSHBUTTON SWITCH FOR SAFETY

Construction of T2: this is the real boring part. Since it is unlikely to find it in shops we need to build them. Materials needed: enamel copper wire (0,20 mm or 0,125 mm), ferrite stick, LDPE sheets (0,25 mm). Secure the ferrite stick with a layer of ldpe (polyethilene, as a substiture use electric insulating tape) and glue it (or tape it) Place 200-250 windings on the ldpe (even more windings if the stick is more than 1'), another ldpe layer, another 200-250 windings and so on to finally have 5-6 layers (approx 1000-1400 turns but even more doesn't hurt performance, but be careful for internar arcing that will ruin it). Insulate it again and place the primary winding, 15-20 turns of 1mm wire are just ok, too much windings (too mush resistance and inductance) will lead to smaller current and smaller spike in T2 secondary because of lower rise time,and too few will not saturate the core. I chosen MKP capacitors because they have low ESR and ESL (they are widely used in tesla coils as mmc capacitors).

The spark gap can be simple two crossed (but not touching) 1 mm spaced wires. It acts as a voltage controlled switch, firing when the voltage is enough to ionize the air between them (turning it to plasma with small resistance). Keep in mind that it would be wise do place it into a small plastic container and fill with oil letting bubbles out (don't use motor oir or frying oil but pure mineral oil which has no water in it.

Disclaimer: As i have seen before, IT IS NOT A TOY, DON'T DO ANYTHING STUPID WITH IT. I DON'T ACCEPT ANY RESPONSIBILITY OF DAMAGES DONE TO OTHER PEOPLE OR YOURSELF WITH THIS DEVICE. IF YOU WANT TO BUILD IT YOU MUST ACCEPT THIS CONDITION. Using the procedures described above would prevent you from any damages/troubles. Don't carry it in streets or public places if they are banned in your country, and don't use it near electronic devices. As the wise man says use it like a deterrent, even against animals.

author: Jonathan Filippi, [email protected]
source: www.electronics-lab.com

..:: Important ::..

Read disclamer, please!

 

Circuit diagrams home  |  Circuit diagrams  |  Electronics projects  |  Store  |  Links  |  Privacy policy  |  Contact


Cialis 5 mg senza ricetta Effetti collaterali del Cialis 5 mg Ordina Cialis 20mg Consegna a domicilio di Cialis originale in Svizzera Acquista Viagra in Svizzera senza prescrizione Cialis 10mg senza ricetta Dove comprare Viagra in farmacia online Sconto Cialis 5mg Dónde adquirir Reduslim Spedra Avanafil in vendita online Acquista Viagra in Svizzera senza prescrizione Dónde comprar Cialis Comprar Viagra Contrareembolso Descuento Cialis 5 mg Comprar viagra original Efectos secundarios de Cialis 5 mg Reduslim resultados Remedios para la Disfuncion Erectil Cilis vs Viagra Aviator игра на деньги Acquisto Cialis 5 mg online Cialis 5 mg effetti collaterali Comprare Cialis 20mg a buon prezzo Consegna a domicilio di Cialis originale in Svizzera Acquisto online di Viagra senza ricetta in Svizzera Cialis 10mg Acquistare Viagra in farmacia online Costo del Cialis 5mg Reduslim opiniones Comprare Spedra Avanafil senza ricetta online Dove comprare il Viagra in Svizzera Comprar Cialis barato precio Viagra genérico Descuento Cialis 5 mg Viagra sin receta Cialis 5 mg efectos secundarios severos Reduslim pérdida de peso Problemas de erección tadalafilo en venta avanafil prezzo cialis 20 mg prezzo cialis effetti benefici cialis 10 mg Reduslim Kaufen pulse x coin price avanafil prezzo buy cialis or generic tadalafil