|
ZVS driver based Induction hetaer module (Zero Voltage Switching) |
x 1 | |
|
50V/50A Power source |
x 1 |
|
Soldering Iron Kit |
Testing 2500W Large Induction Heater
An induction heater is a device that uses electromagnetic induction to heat objects. It consists of a coil of wire through which a high-frequency alternating current (AC) is passed, and this coil generates a magnetic field around it. When a conductive material is placed within this magnetic field, it induces electric currents, known as "eddy currents," within the material. These eddy currents generate heat due to electrical resistance in the material, causing it to become hot.
These days, I received this device as a gift from a friend who is a dentist by profession, because it had been sitting in his garage for several years and he had not used it. I immediately decided to study it in more detail so that I could find some application for it. Analyzing the outside, it is immediately seen that it is most likely an induction heater, especially considering this copper coil made of a pipe with a diameter of 7mm.
But to look inside, I first have to remove these cooling fans. Now the PCB is clearly visible and so we can start the analysis. The device contains a very small number of components, including 6 power mosfets IRFP260 mounted on a heatsink, several high-quality MKP capacitors connected in combination, several fast and zener diodes, and two large chopper coils. Here you can see that the device is powered with a voltage of 48 Volts and a current of up to 50 Amps, which by simple multiplication we can calculate that it is a device with a power of 2500 watts or 2.5 kilowatts
And so according to the components, it is not at all difficult to conclude that it is a standard Zero Voltage Switching (ZVS) driver that is used to drive high-frequency resonant converters, typically for applications like induction heating, power supplies, and ballast lighting. According to the size and shape of the coil, we can conclude that it is an Induction Heater with high power. The mosfets are interconnected in two groups, each of three in parallel connection, so that they can withstand a higher current.
First I will put the fans back in place and test the unit.
And as you can imagine, it is very difficult to find a power supply with these features. Nowadays switching mode power supplies are widespread, but this is a special case where extremely high currents flow. In such conditions, these power supplies often experience instability during operation, change in characteristics, and even damage to the power supply.
Fortunately, I had two powerful transformers with a power of 1500 watts each, and they have a secondary voltage of 17V. These are transformers taken out of an old failed UPS unit. As you can see, I connected the primaries in parallel, and the secondary windings in series, so at the output I got an AC voltage of 34 V / 3000 watts. This is exactly what I need, because after rectifying and filtering the alternating voltage, I get 45 volts DC voltage under load.
As a rectifier, I use a Gretz type KBPC 5010 designed for voltages up to 1000V and a current of 50A. Next is a filter of several electrolytic capacitors with a total value of 4000µF. For safety, I also installed an automatic fuse, initially with a value of 20 Amps
And now let's see how the device works in real conditions. During the test I will use first small and then larger objects and at the same time I will read the total consumption with Wattmeter, because at the moment I do not have an Ammeter for large currents (so-called current clamp).
And finally a short conclusion.
The device is solidly made, and for a power of up to 1.2 kilowatts, cooling fans are not needed at all. I actually didn't use the fans during testing. This device is sold online for a price of about $100 which is actually some real amount. A much bigger problem is the power supply for it, so if we don't have an alternative like in my case, the cost of the power supply would several times exceed the price of the device itself. This induction heater can be used with graphite crucible for smelting gold, silver, copper, aluminum and other metals. It can also be used to generate High Voltage using a flyback transformer, wireless power transfer, tesla transformer, and other experiments that I will describe in some of my next videos.
SAFETY NOTE: Please do not attempt to recreate the experiments shown on this video unless you are familiar with High Voltage Safety Techniques! Direct Current even above 60V maybe lethal, even when the AC supply voltage has been disconnected due to the stored energy in the capacitors. I have no responsibility on any hazards caused by the circuit. Be very careful.
Testing 2500W Large Induction Heater
- Comments(0)
- Likes(0)
- 0 USER VOTES
- YOUR VOTE 0.00 0.00
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
More by Mirko Pavleski
- Short review of small music Tesla Coil with Bluetooth A Solid State Tesla Coil (SSTC) is a type of Tesla coil that uses solid-state electronic components...
- Testing 2500W Large Induction Heater An induction heater is a device that uses electromagnetic induction to heat objects. It consists of...
- Arduino FFT Audio Spectrum analyzer on 8x32 color matrix WS2812B The spectrum analyzer displays the amplitude of signals as a function of frequency, allowing engine...
- Unusual Led Ring Arduino Clock, Temperature, and Humidity meter There are many arduino clock projects with temperature and humidity readings where the results are ...
- How to make simple portable PEMF Magnetic Pulser PEMF (Pulsed Electromagnetic Field Therapy), which is also known as magnetic pulse therapy uses ele...
- Single Mosfet Mini SSTC Tesla coil with 10 + cm Spark A Solid State Tesla Coil (SSTC) is a type of Tesla coil that uses solid-state components such as tr...
- How to Make EM84 (6E2) Vacuum Tube Stereo VU Meter A VU meter, also known as a Volume Unit meter, is a device used to display the audio signal level ...
- Universal Arduino Staccato controller for SSTC and VTCC Tesla Coils The VTTC Staccato Controller was developed in the attempt to create longer sparks from VTTCs while ...
- DIY extremly Sensitive and cheap Arduino Seismometer A seismometer, is an instrument used to detect and record ground motion caused by seismic waves, su...
- DIY Extremly Sensitive and cheap Geophone sensor for Earthquakes detecting A geophone is a device used in geophysics to detect ground movement. It is specifically designed to...
- Arduino FFT Spectrum analyzer on VFD display GP1287 An audio spectrum analyzer is a device that visualizes the frequency content of an audio signal. It...
- DIY simple Spark Gap Tesla Coil Tesla coil is a type of resonant transformer circuit invented by Nikola Tesla around 1891. It is a ...
- DIY PC controlled high power PEMF Therapy Device PEMF or Pulsed Electromagnetic Field therapy is a type of therapy that uses electromagnetic fields ...
- DIY Precise Arduino Miliohmmeter In practice, we very often need to measure low resistances. Measuring low-value resistances, especi...
- The simplest way to determine the quality of lighting in your home - bulb flickering meter Light flickering can be a common issue and may occur with various types of bulbs, including incande...
- Classic Style Arduino Weather Station with three Oled Displays So far I have made several weather stations that display local values as well as internet data, whic...
- How to build simple cheap Hulda Clark Syncrometer Hulda Clark's Syncrometer was a device she claimed could detect the presence of various substances ...
- DIY simplest small CRT Oscilloscope An oscilloscope is a measuring instrument used to visualize and analyze electronic signals. It is c...
-
-
Open Source Very Large Stick - Freejoy & MMjoy2 breakout board
573 0 0 -
RF Control training board for students based on ESP32 C3
766 0 2 -
Aquarius+ Computer, Standard PCB
1016 0 5 -
KINETIC COASTERS with a TWIST! Laser or 3D Print some DIY Magic
658 0 1 -
RPI - 8 IO PLC With ATTiny85 Watch Dog
565 0 1 -
Nintendo Famicom HVC-001 Controller Shells
677 0 1 -
COMMODORE 128 DIAGNOSTIC REV.785260 KEYBOARD DONGLE
632 0 4