At the beginning i used one 0.47uF 65V Capacitor than i rewatched your video and i saw you have 2000V capacitor so i add more of them just to see if it will change something but it didn’t. I know the quality of my circuit is bad.

I tried the circuit and i couldn’t make it work :/ Just Mosfets are getting heated. The aim is heating the metal workpiece not the mosfets right?
Do you have an idea what am i doing wrong?

Thanks
Cagdas

@gobinath: yes

Radu

Thanks

Thanks

Thank you for advance for your time.

Dave

http://uzzors2k.4hv.org/projectfiles/seriesresonantinductionheater/Power%20Stage.GIF

find on this website:

http://uzzors2k.4hv.org/index.php?page=seriesresonantinductionheater

I use a NE556 to produces a single wave signal of 60KHz but
I must put a diode on the output because the signal go under 0V, I think my diode isn’t a high speed diode.
I apply the Radu’s circuit with my components.
On the link below there is a schema of the new circuit:
https://www.dropbox.com/s/xb6iywdowt6lnsx/New%20circuit.jpg

Please help me and explain me why my current circuit doesn’t work.
Thanks

When I did see this article, my first thought was, even before reading, is this powerfull enough to melt aluminium?
So, is it possible to get enough power/heat to melt the aluminium to let it flow into a mold? How can we make it more power full? By doubling the fets and place them parralel?
Also is the first schematic more powerfull then the second one?

Again thank you, and I hope that you keep updating this topic.
Also Eric and Brian, please keep us informed about your results.

Is that about what you are doing?

Generally speaking, feromagnetic metals absorb more energy from the induction heater but aluminum should work fine as well, since crushed cans have a small mass after all.

My question is if this is able to be scaled to the size, about 3-4 inches in diameter, and what factors would need to be addressed at that size?

Scriu in ce limba consider eu ca e potrivit, cum de te-ai gasit tocmai tu sa te impiedici de asta, si mai ales cum iti permiti sa ma abordezi pe un astfel de ton? Sunt pentru o comunicare usoara iar cum blogul meu e despre tehnologie, si in lumea stiintifica se foloseste engleza, in acest fel se pot schimba rezultate si se pot imbunatati modelele actuale. Vezi ca mai demult, in mediul stiintific se folosea latina, sper ca nu esti suparat si pentru asta.

Cat despre rusinea cu concetatenii, poate ai vrut sa spui ciuda. Dar asta nu e problema mea.

Te poti intoarce la Caragiale care e o lectura usoara si pe alocuri amuzanta, dar la modul cum o interpretezi faci act de subcultura, si nu te prea ajuta. Ca sa vezi cine vorbeste de snobism.

Mihai G.

In alta orgine de idei, iata-l pe simpaticul Mihai G*****scu, autorul comentariului de mai sus, suparat ca valorile romanesti nu sunt pastrate, dar el s-a dus in Canada, de unde da lectii de patriotism inflacarate, aflat la adapostul monitorului dansului. Sunt curios daca sare si pe strada, fara retinere, la beregata oamenilor pe care ii intalneste si care il deranjeaza ca vorbesc engleza. Pericol! Atentie! El e suparat ca nu am scris in romaneste, si sare la tot felul de acuzatii, facand o scurta incursiune in natura fiintei lui – erodata de prea multa invidie si ura pentru semeni, si uita ca globalizarea i-a adus pe oameni aproape. Ii lauda pe Germani, si arunca cu noroi in ai lui, iar la urma tot el se necajeste ca nu-s romanii acolo unde ar trebui sa fie. Cate controverse si situatii paradoxale in gandirea dansului, dar noroc ca e un om educat, care l-a citit pe Caragiale ceea ce i-a completat imaginea asupra societatii si a lumii in general!!

i found your coil while googling for induction coil designs. first, i’d like to commend you on constructing what looks like an extremely well constructed coil!

i’m looking to build an induction heating color similar to yours, but for operating at around 1 MHz rather than 100 kHz or so. Do you have any suggestions for modifying the design [especially on the coil end]? I would also appreciate it if you had any references for the coil design; I’m a bit unclear about a couple of parts of its operation.

thanks!
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