Bifilar pancake coil overunity experiment

[ayeaye]

Yes i had 22% duty cycle. Yes i inverted ch2 because having the scope ground at the bottom of the LR circuit it was backwards, this made it the right direction. In fact i used ch2 for R2 just because on my scope only ch2 can be inverted. The lower trace on the screen should normally be ch1, but i couldn't do that as only ch2 could be inverted.

Now that looks like coil

[TinselKoala]

OK, good. Now can you run your software analysis on that scopeshot? It should be a lot easier than using the photo of your analog screen. 

[ayeaye]

Yes i will. When i look at it, i can say though that there is no overunity. As the area of the back-emf relative to the area of the forfward-emf is much smaller compared to mine.

[TinselKoala]

Looks like your power supply sagged a little bit (10 vs 12.5) and your duty cycle is a little bit more than mine (22 vs 20 percent). Will that affect the OU calculation?

[TinselKoala]

Yes i will. When i look at it, i can say though that there is no overunity. As the area of the back-emf relative to the area of the forfward-emf is much smaller compared to mine.

Oh? It's not that obvious to me. Please color in the areas you are talking about.