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May 4, 2022
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Instructions for making an induction heater for beginners in electronics

With the help of an induction heater, metal parts such as bolts, knife blades, etc. can be red-hot in a matter of seconds. It is not difficult to assemble such an installation for a radio amateur, but for people unfamiliar with electronics, this seems unrealistic. If you follow this master class, anyone who knows how to even hold a soldering iron in their hands will cope with this.

Instructions for making an induction heater for beginners in electronics

Materials:

Scheme of the induction heater:

Instructions for making an induction heater for beginners in electronics

Manufacturing process of induction heater

Two 50N06 transistors must be screwed to the aluminum radiator used as the device frame.

Instructions for making an induction heater for beginners in electronics

For this, gaskets and screws with dielectric bushings are used. Immediately bend the extreme legs of the transistors to the sides.

Instructions for making an induction heater for beginners in electronics

Ludim transistor contacts. Then we solder 10 kOhm resistors between the extreme legs.

Instructions for making an induction heater for beginners in electronics
Instructions for making an induction heater for beginners in electronics

We solder to the third leg of the transistors along the wire, and connect the ends of the latter with a jumper.

Instructions for making an induction heater for beginners in electronics

Then we take a 1N4007 rectifier diode, and solder it to the central leg of the first transistor and the first leg of the second, as shown in the photo.

Instructions for making an induction heater for beginners in electronics

Instructions for making an induction heater for beginners in electronics

We turn the second rectifier diode in the opposite direction, and solder between the central leg of the first transistor, and the first of the second. We also solder a piece of wire to the central contacts of the transistors.

We solder an inductor of 100 uH to the wire.

Instructions for making an induction heater for beginners in electronics
Instructions for making an induction heater for beginners in electronics

We solder a wire in its center.

Instructions for making an induction heater for beginners in electronics

Between its core and the first rectifier diode, we solder a 2 W 220 Ohm resistor.

Instructions for making an induction heater for beginners in electronics
Instructions for making an induction heater for beginners in electronics

The second resistor must also be soldered to this core, but its remaining end must be connected to the first leg of the first transistor. Then we solder capacitors from the induction cooker to the wire.

Instructions for making an induction heater for beginners in electronics

Now, with the help of terminals, a coil of enameled wire can be connected to the wire behind the capacitors, in which a metal object will heat up the premises. The unit is powered by a 12V unit. We connect its plus to the wire on the inductor, and the minus to the jumper connecting the transistors.

Instructions for making an induction heater for beginners in electronics

Instructions for making an induction heater for beginners in electronics

A metal object placed in the coil is easily heated.

Instructions for making an induction heater for beginners in electronics
Instructions for making an induction heater for beginners in electronics

You can also connect other equipment to the device. For example, take a U-shaped core, and wind a 1.5 mm wire in insulation around it. It is enough to make 8 turns.

Instructions for making an induction heater for beginners in electronics

Such a coil allows you to kindle a light bulb, heat thin blades, and also boil water in a metal bowl. The scope of this installation is very extensive, especially it is needed for hardening metal.

Instructions for making an induction heater for beginners in electronics
Instructions for making an induction heater for beginners in electronics
Instructions for making an induction heater for beginners in electronics

Watch the video

How to make a simple induction cooker on 2 transistors

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