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We used to tune the driver side to the FET too with RLC circuits instead of resistors to get lots of low loss current drive at 13.56MHz to the FET gate.
I would give some patents, but is AFU for "patent search" links at the moment...
Registered Member #618
Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
I found that if you don't mind NOT having the adjustable duty cycle just wire the R2 and R3 block with a sing pot with no diodes and it should work. Also as a side question but somewhat relevant, what would be the MAX voltage applied to the fet, on a circuit like this, and would adding a Cap in paralel to the primary do any good as well as keeping the cap across the D\S of the fet?
Registered Member #63
Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
If you have a proper flywheel / output network connecting the primary, there are many variables you can alter: Cshunt Cload (primary) Cseries (flywheel) Lseries (flywheel) Lload (primary)
And then there's coupling. You really need to play around.
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Class E SSTC problems
