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After seeing CompWiz ZVS induction heater I decided to build one too. I used the widely spread circuit, the only difference is that i used irfp260 instead of irfp250. I am powering it with 40v and it draws 20A. The work coil is made out of 3mm copper wire 7+7 turns. The tank cap is made out of 5 Siemens MKP 220n 1000V caps, the fast diodes are MUR860 and the inductor is made out of 3 computer iron powder cores connected in series (and yes they do heat up aftee minute or so ). It takes about 10-12 seconds for the bolt to shine bright orange (the camera show it like dim red ). I put in a piece of aluminum just to see what happens and it melted afet about a 30-40s . Here some pics - the set-up, some heated objects and the power supply. So what do you think guys
Registered Member #123
Joined: Fri Feb 10 2006, 12:58PM
Location:
Posts: 162
Thats a nice induction heater. What is really impressive is you managed to melt aluminium directly. this proves it isn't just working on hysterysis losses as with iron.
Thenks guys . Because of it;s good performance I am thinking of making a SMPS fot it. Uzzors your circuit looks good. I will look around the net for some more info. I have e few E40 ferites so i will try something trough the next weekend.
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ZVS Induction Heater -800W
. Here some pics - the set-up, some heated objects and the power supply. So what do you think guys 
wow that is one nice setup you've got there. everything looks nice and organized.
. Because of it;s good performance I am thinking of making a SMPS fot it. Uzzors your circuit looks good. I will look around the net for some more info. I have e few E40 ferites so i will try something trough the next weekend.
