How to assemble a powerful stun gun. How to make a stun gun yourself at home: a few easy options. How to make a stun gun from an electric lighter
Every man is concerned about the safety of the people he loves. Firearms and airguns are not always available, nor are they safe. Only electroshock devices help out, which for several decades have been considered the safest and most reliable means for personal self-defense. By tradition, today we will assemble a low-power and compact stun gun, which is more suitable for ladies.
The power of such homemade stun gun not great - 5 watts, but compared to 3-watt store-bought stun guns, our copy is in the lead.
You can take any case itself, I cut it off chinese lantern under the right dimensions, it was there that he mounted the entire circuit. The stun gun is made according to the traditional scheme using high voltage coil.
The inverter is built on just one powerful field-effect transistor, the circuit is better known as a blocking oscillator. The gate resistor can be selected with a nominal value of 40-820 ohms.
I used an assembly of 4 as a power source nickel cadmium batteries with a capacity of 350mAh, their total voltage is 4.8 volts. The capacity of such a battery is quite enough to obtain the declared power.
The converter transformer is wound on a W-shaped core, it is on the same core that transformers are wound from power supplies for halogen lamps low power (up to 50 watts). First you need to carefully disassemble the transformer so as not to damage the core. Then remove all factory windings and wind a new one.
The primary winding contains 2x4 turns of wire 0.6-0.8 mm, we put insulation on top with 6 layers of thin, transparent adhesive tape and wind the step-up winding.
The secondary (step-up) winding consists of 650 turns, wound in layers, each layer consists of 70 turns. Try to wind the coils as carefully as possible (coil to coil is not necessary, just be careful).
Each row of winding is insulated with 4 layers of the same adhesive tape. The finished transformer does not need to be poured epoxy resin.
The high voltage coil is the main part of our circuit. The coil is wound on a ferrite rod (any brand) with a diameter of 6-8 mm (not critical). To begin with, the rod must be carefully insulated with adhesive tape, electrical tape and other insulating materials.
The primary winding is wound with a wire of 0.7-0.8 mm and consists of 14 turns, then you need to isolate the winding with 10 layers of adhesive tape and wind the secondary.
The secondary contains 500 turns of 0.1mm wire and is also wound in layers - 70 turns per layer. Interlayer insulation is laid with the same adhesive tape. The finished transformer is placed in a syringe (of a convenient diameter) and filled with epoxy. You can do without pouring, but for reliability it is advisable to fill it, especially if you are winding high-voltage transformers for the first time.
High-voltage capacitors with a capacity of 0.1-0.22uF, I put two capacitors in series (each 630V 0.22uF). You should pay attention to the voltage of the capacitor, only those with an operating voltage of 1000 volts and above are suitable.
Spark gap - through this spark gap, the capacitance of the capacitor is discharged to the primary winding of the high-voltage coil. I made the arrester from two pieces of 0.8mm wire located one above the other, the distance between them is 1mm (you may have to play with the gap). You can also use industrial arresters with a breakdown voltage of 700-900 volts.
The switch has three positions - the middle point - and the flashlight and stun gun are off, top point- the shocker is on, the lower point - the flashlight is on.
Flashlight - made of 4 white ultra-bright LEDs connected in parallel (removed from a Chinese LED flashlight). Field-effect transistor can be replaced with IRFZ40, IRFZ46, IRFZ48, IRF3205, IRL3705 or similar.
Rectifier diode - KTs106 with any letter or three diodes connected in series with a reverse voltage of at least 1000 volts (for each diode), diodes must be taken pulse or fast diodes (FR107 / 207 are suitable from pulse, UF4007 is great from ultrafasts).
The device can be ordered. Write to
Good day everyone!
Not so long ago, wandering through the expanses of the Internet, I came across a stun gun circuit and decided to collect what came of it, see for yourself.
Attention!!!
The main effect of the stun gun is deafening and painful. Electricity causes strong pain and puts the person in a state of disorientation. An electrical discharge at the point of contact with the body stimulates ultra-fast muscle contraction, which leads to a short-term loss of performance. In addition, the activity of nerve endings is blocked and the brain cannot control that part of the body that was affected by electric current. Paralysis develops, which can last up to 30 minutes
Scheme:
To make a stun gun, we need:
Transistors: IRFZ48N or IRFZ44.IRF3205
Resistors: 680 ohm or 1 k ohm
Capacitors: 2n2 x 6.3 kv
Discharger
Diodes: KTS123 OR 106 (KTS123 A is better)
Transformer: From a computer power supply (I used a DF-90 PC choke)
The winding wire was taken from an old razor
Batteries format 16850-3pcs
Relay for 12 in 10a
Breadboard, wires, tin, rosin, soldering iron, well, straight arms.
I took the diodes from the UN9 / 27-1.3 multiplier and the winding wire from an old razor
The diodes in the multiplier are as follows:
I wound the transformer like this:
4+4 turns with 0.6 wire folded 3 times Primary winding
900 turns with wire 0.5-0.2 mm Secondary, rewound with tape every 100-110 turns
Power supply for the stun gun is necessary switch via relay and choke
I used 3 16850 batteries for power.
But the stun gun works well from 2-woo
For charging, I use a board on TP4056
In the video, the whole process of disassembling the assembly and launch
Powerful do-it-yourself electric shock at 100 W
The do-it-yourself electric shock can assemble almost any ham radio at home. Peak The power of this model reaches 135 watts.- and this is an absolute power record for such dimensions. The shocker turned out to be quite pocketable, has enough stylish design thanks to the coating of 3D carbon fiber (in the store, a meter of such carbon costs about 4 grams. The shocker itself is made in a case from a Chinese LED flashlight, of course, I had to tinker with reworking the case. simple design and weighs no more than 250g.
Device Diagram:
It all started with the eBay auction two sets of lithium-polymer batteries with a capacity of 1200mA at a voltage of 12 volts were ordered (according to the passport 11.1 volts). The short circuit current of such batteries is over 25 amperes. But for such batteries it is a sin not to make a powerful converter. Without thinking twice, a circuit of a powerful high-voltage inverter 12-2500 Volts was assembled.
The circuit is built on powerful N-channel field switches of the IRFZ series48, but the choice of transistors is not critical. Later, the transistors were replaced with more powerful IRF3205, it was thanks to this replacement that the power was increased by 20-30 watts.
The 5kV 2200pF capacitor used in the multiplier can deliver power of 0.0275 J / s, there are 4 such capacitors in the multiplier.
Sufficiently large losses in the converter, in the inductor and in the diodes of the multiplier.
Specifications:
Output voltage - 25-30kV
Maximum power - 135 watts
Long-term power - 70 watts
Discharge frequency 1000-1350Hz
Distance between output contacts - 27mm
Power - battery (LI-Po 11.1V 1200mAh)
Flashlight - has
Fuse - has
Charging - transformerless, from a network of 220 Volts
Weight - no more than 250g
Transformer - was taken from Chinese electronic transformer for powering halogen lamps with a power of 50 watts.
It is necessary to remove all regular windings from the transformer in advance and wind new ones.
The primary winding is wound 5 cores at once copper wire, each of the cores has a diameter of 0.4-0.5 mm. Thus, in the primary winding we have a wire with a total diameter of about 2.5 mm.
First you need to cut 10 pieces of the specified wire, the length of each piece is 15cm. Next, we assemble two identical tires of 5 turns.
We wind the primary winding with two tires at once - 4-5 turns around the entire frame. Next, we cut off the excess wire from the ends of the windings, remove the varnish, twist the cores and tin them.
Next, we isolate the primary winding with 10-15 layers of ordinary transparent tape and start winding the secondary (step-up winding)
The winding is wound in layers, each layer has 70-80 turns. This winding is wound with a wire of 0.08-0.1 mm, the number of turns is 900-1200.
Interlayer insulation is made with the same transparent adhesive tape, for each row we lay 3-5 layers of insulation.
The finished transformer cannot be turned on without load; it does not need to be filled with resin.
high voltage part
voltage multiplier. High-voltage diodes of the KTs123B series are used here, you can replace them with KTs106G or any other high-voltage diodes with a reverse voltage of at least 7-10 kV and with an operating frequency of more than 15 kHz.
The finished multiplier is poured with epoxy resin directly in the EShU housing.
The exit bayonets are made of solid stainless material, the distance between them is a little more than 25mm. You should not spread the bayonets for a long distance, although the air breakdown can reach up to 45mm.
The switch and button must be selected with a current of 3 A or more. The LEDs for the flashlight were taken from a Chinese lamp, the usual super-bright ones.
They are connected in series, power is supplied through a 10 ohm 0.25 watt limiting resistor.
Charging is performed according to a transformerless circuit, the output voltage is 12 volts at a current of 45 mA. Now many will think that it is unthinkable to charge such batteries with this charger, but the current is negligible, it takes a long time to charge, but the batteries do not swell, besides, the circuit is simple and works stably, does not heat up and is not afraid of a short circuit. Of course, if possible, it is advisable to use a normal charger to charge such batteries, but in my case there was no such possibility.
Our shocker is dozens of times more powerful than industrial ESH models that can be found in stores, even the famous scheme of Pavel Bohun (EVIL SHOCKER) in front of this device is just a toy.
Well, on this note, we will conclude our article, the shocker came out good, has a super high power, but has not yet been tested on people, but with such a device you can safely walk the streets of even the most dangerous areas.
Watch the video in our
Imagine the situation - you are in an elevator with a robber. How to defend? Get a knife and strike or shoot a pistol (traumatic, firearm)? But this way you can kill the robber and still remain guilty and receive a prison term. It is possible to spray a criminal in the face with a spray can, but there is not enough space in the elevator and you yourself can suffer from gas. This is where the stun gun comes in handy. It is compact, and does not cause harm to health, but only neutralizes the enemy for several minutes, hitting him with a high-voltage discharge.
Today in stores we are offered a huge selection of various stun guns, but all of them do not exceed the power of 3 W (according to the civil code). Tasers of such power are unlikely to be able to help in a real battle. Unlike shockers (up to 50 W), which are used by the police.
Time to buy powerful shocker If we can't, why not make it ourselves?
How to make a stun gun at home
First you need to determine the requirements for the device.
The shocker must have:
- more power
- compactness
- built-in flashlight
- ready indicator
- built-in charger
- small current consumption
- fuse
- anti-snatch system
- other useful things
With all this, the device should have a simple design.
I will describe some of the elements.
A flashlight is a white LED connected to power through a resistor.
Ready indicator - an LED signaling that the power is on.
Fuse - a switch with fixation (turning off the power), prevents the appearance of a discharge on the electrodes if the "discharge" button is accidentally pressed.
More details need to be told about the anti-snatch system. If in a fight a criminal grabs a shocker from you, he will not be able to use it against you, because. shocker just won't work.
The whole secret is in the reed switch (magnetic switch), which is connected to the circuit of switches (between the power switch and the button that passes the discharge to the electrodes). When the magnet approaches, the contacts of the reed switch close, conducting current through themselves, but if the magnet is moved away, the contacts will disconnect again. A magnet can be attached to the ring, which will need to be constantly worn on the finger.
Scheme of a stun gun
Let's start manufacturing.
High voltage coil
You will need:
- insulating tape;
- scotch;
- silicone;
- transparent package;
- ferrite rod 4 - 5 cm long (from the radio);
- wire.
We wrap the ferrite rod with 3 layers of electrical tape, wrap 5 layers of adhesive tape on top. Next, we wind the primary winding (15 turns) with a wire with a diameter of 0.5 - 1 mm. Winding coil to coil.
From above we wrap 5 layers of electrical tape and 6 scotch tape.
Next, cut the bag into 10 cm wide ribbons. equal to the length coils. We wind the secondary winding (350 - 400 turns) with a wire of 0.4 - 0.7 mm. Important, both windings must be wound in the same direction!
We wind the wire coil to coil, in rows of 40 - 50 turns. After each row, we isolate the bag with cut ribbons in two layers, then we strengthen it at the top with 5 layers of adhesive tape.
We wrap it with 2 layers of electrical tape and 10 layers of adhesive tape. The side holes are filled with silicone.
The transformer is ready. It needs to be tested for breakdowns. To do this, a current was applied to the primary winding from a capacitor of 1500 V, 0.33 μF, while about 7 cm of arc was removed. There were no breakdowns in the winding.
converter transformer
You will need:
- insulating tape;
- scotch;
- the wire;
- ferrite transformer.
We pull out the ferrite transformer from impulse block food located in various techniques. In this case, the transformer is taken from the ATX PSU.
We remove the ferrite frame (if it is difficult to remove, then put the transformer in boiling water). It is possible that during the parsing process, a part of the frame may break off - it does not matter, it can be glued together with superglue. We also remove all regular windings.
Coil winding. The primary winding consists of 12 turns of 0.8 mm wire, tapped from the middle (i.e., 6 turns per shoulder). We isolate it with 3 layers of electrical tape and 5 scotch tape.
In the secondary winding there are 600 turns of wire with a diameter of 0.1 mm; After winding, we isolate each row with 4 layers insulating tape. After winding, we insert the ferrite halves and tightly wrap the transformer with tape or electrical tape.
The hardest part is over. Now let's make spark gap, with which the capacitor gives up its charge to the primary winding of the coil.
We will make it from an old fuse. Using a soldering iron, remove the tin from the fuse contacts and remove the wire inside. Next, screw the screws on both sides (they should not touch, otherwise you will get a short circuit). The gap between the screws, you can adjust the frequency of discharges between the electrodes.
Based on materials from the site: radioskot.ru
Specifications homemade
stun gun
- voltage on the electrodes - 10 kV,
- pulse frequency up to 10 Hz,
- voltage 9 V. (Krona battery),
- weight no more than 180 gr.
Device design:
The device is a generator of high-voltage voltage pulses connected to the electrodes and placed in a housing made of a dielectric material. The generator consists of 2 series-connected voltage converters (Scheme in Fig. 1). The first converter is an asymmetric multivibrator based on transistors VT1 and VT2. It is turned on with the SB1 button. The load of the transistor VT1 is the primary winding of the transformer T1. The pulses taken from its secondary winding are rectified by the diode bridge VD1-VD4 and charge the battery of storage capacitors C2-C6. The voltage of capacitors C2-C6 when the SB2 button is turned on is the power supply for the second converter on the VS2 trinistre. The charge of the capacitor C7 through the resistor R3 to the switching voltage of the dynistre VS1 leads to turning off the trinis VS2. In this case, the battery of capacitors C2-C6 is discharged to the primary winding of the transformer T2, inducing a high voltage pulse in its secondary winding. Since the discharge is oscillatory in nature, the voltage polarity on the C2-C6 battery changes to the opposite, after which it is restored due to overdischarging through the primary winding of the T2 transformer and the VD5 diode. When the capacitor C7 is recharged again to the switching voltage of the dinistr VD1, the trinistor VS2 is turned on again and the next high voltage pulse is formed at the output electrodes.
All elements are installed on a foil-wrapped fiberglass board, as shown in Fig. 2. Diodes, resistors and capacitors are installed vertically. The case can be any suitable size box made of a material that does not transmit electricity.
The electrodes are made of steel needles up to 2 cm long - for access to the skin through human clothing or animal hair. The distance between the electrodes is at least 25 mm.
The device does not need adjustment and operates flawlessly only with correctly wound transformers. Therefore, follow the rules for their manufacture: transformer T1 is made on a ferrite ring of size K10 * 6 * 3 or K10 * 6 * 5 from ferrite grade 2000NN, its winding I contains 30 turns of PEB-20.15 mm wire, and winding II - 400 turns of PEV-20.1 mm. The voltage on its primary winding should be 60 volts. The T2 transformer is wound on a frame made of ebonite or plexiglass with an inner diameter of 8 mm, an outer diameter of 10 mm, a length of 20 mm, and a cheek diameter of 25 mm. The magnetic circuit is a segment from a ferrite rod for a magnetic antenna 20 mm long and 8 mm in diameter.
Winding I contains 20 turns of PELSh (PEV-2) wire - 0.2 mm, and winding II - 2600 turns of PEV-2 with a diameter of 0.07-0.1 mm. At the beginning, winding II is wound on the frame, through each layer of which a layer of varnished fabric is placed (a breakdown between the turns of the secondary winding may necessarily occur otherwise), and then the primary winding is wound on top of it. The conclusions of the secondary winding are carefully insulated and attached to the electrodes.
The list of necessary elements for self-assembly
stun gun:
C1 - 0.047uF;
C2 ... C6 - 200uF * 50V;
C7 - 3300pF;
R1 - 2.7 kOhm;
R2 - 270 MΩ;
R3 - 1 MΩ;
VT1-K1501;
VT2-K1312;
VS1-KH102B;
VS2 - KU111;
VD1...VD5 - KD102A;
VS1 and VS2 - P2K (independent, fixed).
Application:
In case of a perceived threat to your safety or in advance, press the VS1 button, after which the device starts charging, at this time there is no voltage on the electrodes yet.
After 1-2 minutes, the electric shock will be fully charged and ready for use. The ready state is maintained for several hours, then the battery is gradually discharged.