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4hv.org :: Forums :: General Science and Electronics
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Better Induction Heater Questions

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Gabriel35
Fri Aug 21 2009, 04:12PM
Gabriel35 Registered Member #2310 Joined: Wed Aug 19 2009, 08:04PM
Location: Santa Catarina - Brazil
Posts: 169
Oh! very nice! this will be much better for me, I can only find IRFP460 MOSFETS, here, on local electronics sellers
So can I use the exactly "schema3" schemtic just changing the IGBT's for the IRFP460?
Don't need the MUR Ultrafast Diode?
For the DC blocking i'll use a tank of capacitors and for 22uF pair of capacitors, probably i'll use a tank too...
So the DC blocking(9uF) and the 22uF capacitors can be any kind of non-polarized capacitors, alright? (i got polyester ones)
I would like to ask if the 40106 IC conections are right?
Because i'll use this IC instead of the MAX and the 74HC14, (I couldn't find the MAX one...)
The Supplys for 18v and 12v can be of low Amperage? like 0,5A or 1A?

Thank You for all your help since now...
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Gabriel35
Mon Aug 24 2009, 03:46PM
Gabriel35 Registered Member #2310 Joined: Wed Aug 19 2009, 08:04PM
Location: Santa Catarina - Brazil
Posts: 169
Hi!
about the 40:1turns transformer, the 1 turn is to the coil side?
the schematic is inverted so...
what about the polarity of the IRF's, is Drain with Drain or Source from IRF9530 with Drain from IRF630?


EDIT: Sorry for bumping, and thanks for advice


Thank you!
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Steve Conner
Mon Aug 24 2009, 03:57PM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
No bumping, read the forum rules again!
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