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Author Topic: PDi Regenerative Acceleration and BiTT Principles  (Read 88146 times)

Real Boots

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Re: PDi Regenerative Acceleration and BiTT Principles
« Reply #90 on: April 12, 2014, 10:27:51 PM »
Dieter;
By wire spool I mean a bobbin made of plastic that I wound 30awg copper wire onto with a drill.  Trying to take everything I could from those Thane YouTube vids you mention, very high L/R for the primary.  Think the primary resistance was around 147 ohms from what i recall. 
Just got my tesla shield transfo ready for testing, will post some more pics on that gabriel thread shortly. 
-boots

Real Boots

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Re: PDi Regenerative Acceleration and BiTT Principles
« Reply #91 on: April 20, 2014, 06:39:41 PM »
I did a modification on the bitt I pictured above in thread and still got similar results, the coil actually fit in the middle so I was able to eliminate some of the ferrite pieces.  Bitt is shown with primary coil removed from around ferrite rod.  This one was now a little more efficient but still normal transfo characteristics when measured with 2 ch scope.
I made another one using same primary coil and a ferrite core from tv along with a silicone steel core, this one unfortunately also acts like normal transfo as well at 60hz, no sign of what Thane was describing.


dieter

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Re: PDi Regenerative Acceleration and BiTT Principles
« Reply #92 on: April 21, 2014, 03:37:25 AM »
Would you replicate a little test that I have made:
Use the two Secondaries in series as the primary, also add a 100 uF cap in series here, test the output taken from the old primary that is now the new secondary.


How's the phase angle, with and without load? Note, cap needs high enough voltage rating, otherwise expect cap heat problems.


Regards


dieter

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Re: PDi Regenerative Acceleration and BiTT Principles
« Reply #93 on: April 21, 2014, 03:44:49 AM »
BTW. the last image: you may not use the red coil, otherwise this is no Heins bitoroid. Also, the green-white wire seems to have thick insulation, I always had very poor results in efficiency and coupling when I used anything other than enameled magnet wire.