This is the zvs induction heater that i have made. It have 2 power supplies because i had no zeners at home. im driving the gates with a n L7812CT but it have a limitation of 35V input.. Im planning to make a buck converter as replacement, so I'll be able to use higher input voltages.
Component list:
1 L7812CT
2 100uF @ 35v (for stabilizing the voltage regulator)
2 5k ohm 1/4w resistors
2 470 ohm 1/2w resistors
2 MUR460 schottky diodes
2 IRFPS40N50L mosfets
2 40 to 200 microhenry inductors. Iron powder cores are highly recommended (mine are 80uH)
Polyester capacitors 3uF @ 450v as minimum.
How to recognize an iron powder core:
Normally the iron powder inductors are placed towards lower frequency areas, such as output inductors and chokes. Some of them are painted, the more usual are the yellow/white ones wich are type 26 material
Or the green/blue ones that are type 52.
I have used the yellow/white toroids taken from old atx psu.
Have fun!.
