Original poster: Skip Malley <skip@xxxxxxxxxxxxxxx> Dan,I would love to see a photo of something that is better than the trifilar wound toroids that I referred to. I am always interested in improvements. I also love seeing unique solutions to specific problems. I would be genuinely interested in seeing a design that is better then the trifilar wound GDTs that I proposed. What kind of leakage inductance do the "homebrew / hand made" transformers have? The ones I referred to are good up to 500 KHz and 1000 Watts.
Happy coiling. Skip At 03:43 PM 1/27/2006, you wrote:
Skip, We have evaluated these for use commercially in our projects and found that the leakage inductance is much too high for driving devices with large gate charge (capacitance) such as 40N60 IGBTs or similar. They work fine for smaller devices, but for larger devices commonly used in SSTCs and DRSSTCs, they just don't work well. Better off to wind your own. Dan