Megashocker-2. Electric stun gun of increased efficiency. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Megashocker 2. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Security and safety. Personal safety

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This circuit is an improved version of the original circuit Megashocker. Due to the use of a PWM controller with a complementary output, the heating of the transistors in it is much less, and accordingly the efficiency of the device is higher (>90%). The transformers, however, are the same as in the first version of the circuit. The frequency of the converter seems to be adjusted by R5, but C7, apparently, will have to be selected for the required power (starting somewhere around 2 nF). C7 must be designed for a voltage of at least 630v. The rest - see the description for Mega Shocker v1.1 Regarding the cross-sectional area of the core of the T2 trance: 450 sq. mm is not a joke, I even made myself 540. Only such a trance will transmit impulses with energy of 1,8...2,4 J without loss Dimensions of the device: there is an opinion here that you will have to carry the device with you on a cart. :) I declare with authority: never mind - everything is in your hands! And in your wallet ;)

(click to enlarge)

I initially expected that the device would not be pocket-sized, but there are ways to make it quite compact. You can reduce the power and output voltage of the device to 20...25 W and 20...30 Kv, respectively (then T2 can also be made smaller). And install a compact power source, for example a battery of 5 CR123A lithium batteries, they seem to be able to provide such power. The efficiency of the device should decrease slightly (however, with such a relatively low voltage, the electrodes will need to be made pointed so that they partially pierce clothing). What cannot be reduced is the distance between the electrodes; making it less than 10 cm is simply impractical.

Another option is to make the device in the form of a baton without reducing anything (with folding “horns” at the end to ensure a large distance between the electrodes). You can also make the device in the form of a vest, placing in it a power source and a converter with a T1 trans, and the rest in a compact case connected to the vest using a cord. ... In short, there are many options :)

If you want a more reliable defeat of the enemy, and/or finances do not allow you to have a compact but powerful battery/battery, then you will have to get used to the idea that the device, by definition, will not fit into your pocket. Then you can wear it in a belt bag, just behind a belt, etc., again, there are many ways.

A guide for dummies: first of all, we are looking for a suitable power source (I installed a CA1213 battery :), maybe a smaller one from this series), and we find a compromise: efficiency sufficient for you, not too large in size, and not too high in cost. Next, we carefully read the description of “Mega Shocker v1.1” and find out how to calculate the parameters of the circuit (the ratio [pulse power/output voltage] at a discharge frequency of at least 25 per second (preferably 30...40)), after which, clear stump, we're counting on it. Then we think about the case and take up the soldering iron.

A little about safety: Yes, a device of such power can, if used incorrectly, cause a kerdyk, just like, for example, a frying pan - if it is hit in the skull in a big way. This device is recommended for those who care about their health. For those who care about the health of the enemy, I advise you to simply carry a jar of Vaseline with you ;))))). Specifically: You cannot give a Mega Shocker shock to the heart area or spine. It’s also not possible to hit the head, since this can format the brain (then the enemy will forget how to speak, and will walk exclusively for himself).

Application tactics: sharply poke the enemy with a shocker and shock him for longer (5 seconds), after which - according to the circumstances (leave the scene, further compact the object, call the police). In case of a showdown with the police, you can buy some kind of cheap shocker and make an attachment for it so that it and the Mega Shocker have the same shape of electrodes and the distance between them, and then, if something happens to an innocent person, bring this case to the police.

In places where the electrodes touch, slight redness may remain (sometimes 1st degree burns with a diameter of up to 3 mm), which is much more humane than, say, the consequences of being hit in the snout with a baton/brass knuckles/foot or somewhere else. Thus, the main advantage of stun guns is that they do not cause serious injuries (you can first extinguish your opponent, and only then find out what’s what (:)). People who have once been the victim of an attack often do just that.)

A stun gun, like any other self-defense weapon, must be used in combination. For example: carry a Mega Shocker + a gas canister/gun + some kind of judo belt. And apply what is most suitable for this particular situation. Also, regarding safety: you need to keep in mind that the discharge of capacitors C8 and C9, as well as touching the terminals of the secondary winding T2, can cause a shock if the discharge passes from hand to hand.

Follow safety regulations!

Publication: cxem.net

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