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On Wed, 1 Apr 2009 11:59:09 -0700, "Michael Robinson" <...@yahoo.com
<...@x1g2000prh.googlegroups.com...
On Mar 31, 12:16 pm, "Michael Robinson" <...@yahoo.comwrote:
Ah. You might find this page interesting then:
http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat1.html
Michael
Nice. That's Tim Williams? He built a much more complicated induction
heater that he was posting on s.e.d about a while back.
Richie Burnett has a very informative web page on induction heating here:
http://www.richieburnett.co.uk/indheat.html
I didn't build my heater to do the kilowatt thing or melt metal. I needed
to make a (few) hundred watts to heat some metal tubing, and induction
heating is just so efficient I thought I'd give it a try. I got some ideas
from
4hv.org
Found a circuit they call the "Mazilli" and adapted it to my purposes.
Here's the original circuit that got me started:
http://forum.4hv.org/attachments/Flyback_driver.png
Obviously, if you adapt this for induction heating, there'll be no secondary
as in the diagram. Instead of driving the gates with resistors (!!!) I used
totem poles. Then the addition of a thermistor and comparator to turn the
thing on and off for temperature regulation. Of course, the story gets more
complicated, as it almost always does. I had startup problems at high power
levels where it would latch with one mosfet on instead of oscillating, but
found a way around that.
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Anonymous Wrote:
On Apr 1, 11:59 am, "Michael Robinson" <...@yahoo.com
Yep that's him. Was this the complicated version?
http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat6.html
I couldn't find it - remote linking not allowed. Mazilli and Mazili
didn't turn up anything. ???
Sounds interesting. I might just go induction heating for heating
liquids... place metal in a glass jar, apply power...
Thanks,
Michael
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On Wed, 1 Apr 2009 16:34:37 -0700, "Michael Robinson" <...@yahoo.com
<...@f1g2000prb.googlegroups.com...
On Apr 1, 11:59 am, "Michael Robinson" <...@yahoo.com
Yep that's him. Was this the complicated version?
http://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat6.html
That's the one I remembered.
I couldn't find it - remote linking not allowed. Mazilli and Mazili
didn't turn up anything. ???
Go to http://4hv.org, no need to register, just click on Forum and then
General Science and Electronics, then search for "driving mazilli zvs"
the top result is a thread that has a circuit diagram
Sounds interesting. I might just go induction heating for heating
liquids... place metal in a glass jar, apply power...
Thanks,
Michael
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