I always thought these as kind of a myth and couldn't possibly work, but I just now decided to connect a coil up to my ZVS driver in place of a flyback, then place something in the coil and what do you know? Anything metal placed within the coil does indeed get hot, much hotter than the coil gets so something is at work there.
Direct heating of Al is pretty hard with copper inductor. I think you should use molybdenum/tantalum/tungsten crucible or similiar heating element (radiator) with boron nitride or alumina crusible inside it.
You can find almost similiar schema by googling "tonskulus IH".
Yes it is wound with copper capillary pipe. OD is 3,3 mm and inner diameter 0,75 mm. The heater has only one cooling circuit through IGBTs, impedance matching choke, resonant capacitor and work coil. Water pressure is 9 bar in the final setup. If you want more power I recommend to use tube with bigger diameter. Water gets over 70 deg. celsius with +2 kW.
Toi biisi on ihan youtuben audioswapista. Osuu yleensä kohdalleen kun laittaa hakuun vaan jonkun teemaan sopivan sanan. :)
Todella hyvä hyötysuhde noissa kuumentimissa. Saa kaasullakin hetken töhöttää että pultti on valkoisena. Rakentelen tässä vielä arkisempiin sovelluksiin sopivan kuumentimen liikuteltavalla käsikahvassa olevalla induktorilla...
Do you have the scope on an isolation transformer? An isolation transformer for the circuit would have to be huge.
TheLightningStalker 2 months ago
I always thought these as kind of a myth and couldn't possibly work, but I just now decided to connect a coil up to my ZVS driver in place of a flyback, then place something in the coil and what do you know? Anything metal placed within the coil does indeed get hot, much hotter than the coil gets so something is at work there.
CoolDudeClem 4 months ago
this is a great device.
I will pour out al metal rings. I need a furnace.
can you send me a wiring diagram.
or a description as I can reconstruct the device.
so I can build me a small furnace.
that would be very nice.
thank you
ralph
sircoolgandalf 9 months ago
@sircoolgandalf
Direct heating of Al is pretty hard with copper inductor. I think you should use molybdenum/tantalum/tungsten crucible or similiar heating element (radiator) with boron nitride or alumina crusible inside it.
You can find almost similiar schema by googling "tonskulus IH".
kynaniska83 9 months ago
great work... do you have water running in the copper pipes? or are they soild
mrFishball1992 1 year ago
@mrFishball1992
Yes it is wound with copper capillary pipe. OD is 3,3 mm and inner diameter 0,75 mm. The heater has only one cooling circuit through IGBTs, impedance matching choke, resonant capacitor and work coil. Water pressure is 9 bar in the final setup. If you want more power I recommend to use tube with bigger diameter. Water gets over 70 deg. celsius with +2 kW.
kynaniska83 1 year ago
hyvä biisi! ja hätäsesti tuo lämpes tuollon ekalla kerralla =)
voxpko 2 years ago
@voxpko
Toi biisi on ihan youtuben audioswapista. Osuu yleensä kohdalleen kun laittaa hakuun vaan jonkun teemaan sopivan sanan. :)
Todella hyvä hyötysuhde noissa kuumentimissa. Saa kaasullakin hetken töhöttää että pultti on valkoisena. Rakentelen tässä vielä arkisempiin sovelluksiin sopivan kuumentimen liikuteltavalla käsikahvassa olevalla induktorilla...
kynaniska83 2 years ago
Good work and very well buildt i like!
dtiydr 2 years ago
Got a schematic for this?
AgentCROCODILE 2 years ago
Impressive
what topology are u using?
Gabriel9917 2 years ago