MUCH MUCH better now!!!
Posted: Thu Oct 17, 2013 8:29 pm
Made a few modifications to the coil after blowing the crap out of the IGBT's. Again, as most have posted, the Secondary and Primary as shipped recently are way out of tune!
-First, I got a much faster Fan (Computer cooling fan). Although a little more noisy, it now really blows air!
-Second: Dropped the primary windings from 6 down to 5!
-This bought the Primary to about a 305 KHz resonance, while the secondary as I measured out of the box, was at around 325KHz.
-My Resistance to Ground (Secondary) is at 236 Ohms.
-Replaced the IGBT's
COILS is now "marching"......errrr you will need to see the video....
http://www.youtube.com/watch?v=bCC6C0CCF1Q
MUCH MUCH better, primary does not even get warm! The video was with about 45% of power....I will go higher, and see if it makes a difference, but VERY happy with the results, and the coil just seems to run SOOO much better now!
-First, I got a much faster Fan (Computer cooling fan). Although a little more noisy, it now really blows air!
-Second: Dropped the primary windings from 6 down to 5!
-This bought the Primary to about a 305 KHz resonance, while the secondary as I measured out of the box, was at around 325KHz.
-My Resistance to Ground (Secondary) is at 236 Ohms.
-Replaced the IGBT's
COILS is now "marching"......errrr you will need to see the video....
http://www.youtube.com/watch?v=bCC6C0CCF1Q
MUCH MUCH better, primary does not even get warm! The video was with about 45% of power....I will go higher, and see if it makes a difference, but VERY happy with the results, and the coil just seems to run SOOO much better now!