How To Make An Electric Generator

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How To Make An Electric Generator
How To Make An Electric Generator

Video: How To Make An Electric Generator

Video: How To Make An Electric Generator
Video: How to make a powerful generator 220V | DIY Mini generator 2020 2024, March
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In field conditions, it is not always possible to recharge a mobile phone, radio station or digital camera. It's good when you have a car at your disposal - you can recharge the batteries from its on-board network. What if the car is not available? Then a homemade low-power electric generator will come to the rescue.

How to make an electric generator
How to make an electric generator

It is necessary

Coil, copper wire, permanent magnet, diodes, watch strap, electrical tape

Instructions

Step 1

Make a coil to wrap the copper wire around. Insert a small permanent magnet inside the coil that can move freely. The dimensions of the coil will have to be selected empirically, as well as the number of turns of wire on it. To make a coil, you can use a piece of plastic tube. If you move a conductor in a magnetic field across its magnetic lines, then an electromotive force is induced in the conductor, which will cause a potential difference at the ends of the conductor, which generates a directional movement of electrons, that is, an electric current.

Step 2

Plug the ends of the inner tube (coil) to prevent the magnet from falling out. Now shake such a generator so that the magnet moves inside the coil. An electromotive force will begin to induce in the wire and an electric current will be generated.

Step 3

In order to be able to charge a battery with a generator, make a rectifier (diode bridge). A diode bridge is necessary because the voltage and polarity of the current change randomly. Now, with any oscillation of the magnet in the coil, a current pulse of the polarity required for charging will be generated at the output of the rectifier.

Step 4

Since the generator is no larger than a matchbox, attach a watch strap to it and place it on your arm (or leg). Now, when you swing your hand while moving, the magnet vibrates inside the coil, so it generates an electric current. The generator has enough power to recharge a mobile phone in a day. And if you craft two devices and place them on your feet, then there is enough energy for the LED flashlight to work.

Step 5

If you are kayaking, support the generator on the paddle. The generator will generate energy from the oscillating motion of the oar. The generator is not afraid of moisture, does not require lubrication and, if carefully sealed, can work even under water. Wrap plastic wrap around the generator to protect it from dirt.

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