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24 Threads found on Induction Heater
I have a laboratory device, in which the magnetic induction heats a thin needle, from cobalt iron on Curie temperature of this alloy . technically goes Technically it is a small coil the core of which comprises heating the needle. Coil comes to high-frequency current 13,56MHz about 150W.The needle tip is heated to approximately 1200K. I want to
I don't know the explanation but it might be deduced (induced? ha ha) by comparing the concepts below. Some depend on eddy currents, some make use of magnetic metals. * stovetop induction cooker (pot must be ferromagnetic) * Certain metals heated in microwave oven produce extreme heat, and may even spark * Neodymium magnet drops slowly through
This works close to the 27MHz (open frequency) range and uses the same principle as industrial induction furnaces work (they usually start at 100KW). The same principle is used in induction heater (see the item here) No, these are completely different devices. induction cookers are operating in the 50-100 kHz range and heat (...)
Why not heat the copper with an IR lamp? Seems easier. As an induction heater generates heat by eddy currents in any close metal object, it is difficult to shield any thermo-sensor from such heating if its circuit is made of conductors. One possibility is to use a PIR or IR sensor which responds to target-body
The problem with Electrolytic and Ceramic at high voltage is the leakage resistance or Dissipation Factor or Loss Tangent. You must choose a thick film Plastic Cap such as Polyester or Polyurethane. (Epcos, Panasonic) induction heaters are usually fed by an inductor to a center tapped primary to avoid the DC current saturation effects when u
If you do not use such a big reservoir capacitor, you save a lot of money and the peak currents around the circuits fall. The only downside is that the RF in the induction heater will be heavily modulated by the 100 HZ ripple. One way to explore, is that the output voltage falls to zero in the basic ripple, so if you have a second rectifier bridge
HELLO ALL RESPECTED MEMBERS In these days i am making induction heater having o/p power about 500W.i just googled all thing knows richhie's web page,neon john's website all. I made inverter having frequency about 15Khz-100Khz.I am using IGBT module model:150G
Are you sure you'd really prefer an arc heat source, over an induction melt? Getting an arc heater to survive for long at all requires things like a whole lot of inert gas, a lot of attention to cooling the electrode (presumably you are not going to want to replace expensive designed & machined high power tungsten electrodes every minute or so) a
induction heaters are mostly using self-supported thick copper wires or tubes. Otherwise ceramic would be a perfect bobbin material. Ceramic bobbins are often used for short wave power amplifiers.
induction heater Theory
induction Heating High Frequency induction Heating
C3 is for filtering spikes and ripples, etc. Circuit looks okay. Diode depends on the amount of current. What is the power of the induction heater? That may give a rough idea. I don't see any error in the circuit. Isolation isn't mandatory and I don't think you need it here. For C3, use a ~100uF electrolytic capacitor (value not too critical) in
brother! i also trying to make induction heater for my project but i don't have knowledge to connect oscillator and mosfet circuit.please help me!!!!
Chuckey and Mtwieg: you're both right!. I don't mean to be obstinate on my reasoning, I don't like to walk opposite to the rest of the world, just need to convince myself of the cons on my approach. It is: my freedom to make the transistors see an adequate load impedance is adjusting the number of turns on the work coil. What could be simpler?. It
induction Heating
For an induction heater the coil's inductance will change dependent on the type of material that you heat. The best power transfer occurs when the coil operates at resonance. It is a good idea to automatically senses the load current and change the oscillator frequency to track the resonance of the coil. A VCO will be a better oscillator.
i have to control temperature of induction heater by using fuzzy logic , i want to know what will be better option for implementing fuzzy logic ;either plc or micro-controller (pic or 8051)??? You can use any of them to implement fuzzy rule base. Basically it depends on your application check this example for PIC [URL=
hey why can not you look up for induction heating principle.... induction heater are available in market... same way you can make one for your small requirement....thats what i feel..
Hi, I have an induction water heater. Recently I checked its resistance using a multimeter. But surprisingly I found it as zero. I wonder why its not getting short circuited... any idea?
Strictly spoken, PLL involves locking of a variable oscillator frequency to an external reference. Obviously this is not the case in your application. But possibly the phase detector of a usual PLL design can be "abused" to tune an oscillator to achieve a resonant condition in the induction heater load circuit. At first you have to think about a su
i want to know about firquancy of occiletar and what is the induction coil how can cantrol heat:?:
ok i want to make an induction heater 10-20 kW and i dont have a clue so anthing might help me thanks
made an induction heater
even though it acts as draw back in applications like transformer . this find application like induction heater what is the reason of generating eddy current. what rae the effects of it & applications where it is used?

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