A flashlight is a very useful household item. It is useful in a variety of life situations and places where there is not enough light. But, unfortunately, very often we find that the batteries in the flashlight are dead, and this happens at the most inopportune moment. To be sure that your flashlight is ready to shine at any necessary moment, you can make it eternal with your own hands, requiring no batteries or recharging.
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We make an eternal Faraday flashlight with our own hands
Fanarik Faraday is called a product with an alternative power source. In this case, it does not require the use of either batteries or an accumulator. To make the flashlight start to shine, just shake it in your hands. It contains a generator with a battery, which allow it to work.
It looks like a Faraday flashlight, which was manufactured and released at the factory. Photo: sdelaysam-svoimirukami.ru
How does a perpetual flashlight work
The essence of its work lies in a cylindrical permanent magnet, which is freely located in the housing between rubber stops or springs.
The coil is located in the center of the body. If the flashlight is shaken, the magnet will move back and forth in the coil and thus create alternating electricity. Photo: sdelaysam-svoimirukami.ru
After that, electricity is supplied to the diode bridge, where it is converted from AC to DC, thereby charging the battery with a voltage of three volts. Photo: sdelaysam-svoimirukami.ru
This is how the eternal Faraday flashlight looks like in a disassembled state. Photo: sdelaysam-svoimirukami.ru
If you study the flashlight in more detail, you can see its parts: a solenoid, a cylindrical magnet, limiters, a small board with diodes, a switch, batteries and an LED located on the board. Photo: sdelaysam-svoimirukami.ru
If you assemble the flashlight correctly, then it will work like this. Of course, not much light. There are also more powerful options. But, on the other hand, such a flashlight will really work forever. Photo: sdelaysam-svoimirukami.ru
Homemade flashlight options
This prototype is made in a box of Tick-tock dragees. The coil is wound on a tube, in the role of which the body is from the most ordinary ballpoint pen. Magnets were taken from the hard drive. Batteries were replaced with capacitors. Lighting is provided by a white LED. Photo: sdelaysam-svoimirukami.ru
This diagram will help you understand a homemade product and repeat it yourself. Photo: sdelaysam-svoimirukami.ru
Keep in mind that the winding of the coil has its own peculiarity. If you look closely, then in the circuit the coil consists of two windings, and the total length is forty millimeters. Visually divide the coil into two parts. Then, on one of the halves, wind six hundred turns of very thin wire (no more than 0.088 mm in diameter). Do the same with your other half. Thus, you will get a two-section coil. Do everything else according to the scheme.
Also, do not forget the limiters so that the magnets confidently repel and move quickly.
And this is a more powerful example. Here a coil with a large number of turns and a three-section magnet was used. Photo: sdelaysam-svoimirukami.ru
VIDEO: How to make an eternal Faraday flashlight with your own hands
How to make an eternal Faraday flashlight with your own hands
In this issue you will learn: what is a Faraday flashlight; how to make an eternal flashlight with your own hands; what is the principle of operation of an eternal flashlight; its diagram is shown. It is also called a dynamo flashlight.
