An induction coil can heat metal objects extremely quickly. If you assemble it according to the proposed scheme, you can get an induction boiler for boiling water in a steel container such as a cup or pan. This is a completely working device that can be used in practical applications.
Materials:
- Printed circuit board;
- resistors 330 Ohm, 10 kOhm – 2 pcs. - http://alii.pub/5h6ouv
- rectifier diodes IN4007 – 2 pcs. - http://alii.pub/5m5na6
- capacitor 1 µF - http://alii.pub/5n14g8
- inductor 50 mH - http://alii.pub/66lx1w
- transistors IRFZ44N – 2 pcs. - http://alii.pub/5ct567
- radiators for transistors – 2 pcs.;
- steel bar;
- copper wire in enamel.
Manufacturing Process of Low Voltage Induction Heater
The coil will be assembled according to the presented diagram. To do this, a printed circuit board is first prepared for it. 2 resistors of 10 kOhm and 2 of 330 Ohm are soldered into it.
Next, a pair of IN4007 rectifier diodes are soldered into the board. Behind them a 1µF capacitor and a 50 uH inductor are added.
IRFZ44N transistors are soldered to the board according to diagram 2. Aluminum radiators are installed to cool them.
Then you need to cut out a core from a metal bar and wrap it with enameled copper wire. 10 turns will be enough. The coil is connected to the circuit. It is necessary to leave a gap between them so that the board does not heat up from the steel body.
The device is powered from a 12V source. When the device is turned on, it sticks to steel surfaces due to the magnetic field.
The heater can be mounted in this way on a metal mug, and due to induced eddy currents, water can be boiled in it.
