Halo – Rotary Solid State Tesla coil

Primary: 20T 1mm copper wire.
Secondary: 300mm tall, ~900T enameled wire on 75mm diameter cardboard former, wound with 0.225mm Wire.
Topload: 300mm toroid made from pie dishes and 100mm diameter ventilation duct coated with aluminium foil.
Power: rectified mains

Halo's toplaod and breakout, The Breakout made from florests wire is rotated by a stepper motor at 10-15 Revs per second.
All of the power for the breakout and electronics is incorporated in to the topload. The stepper motor is driven by a small microprocessor to ensure its rotation speed stays constant. I found that 12v drive for the stepper motor wasnt enough and so there is a 12v-24v DC-DC converter to allow higher speeds.

Rotational syncronisation to the controller is ahecived with an optical fibre down the center of the secondary.
Halo works by having a sinchronised rotating topload breakout point. To Test the software I added a white peice of paper to the breakout and illuminated the topload from 6 x 3W leds connected to the coil enable.
When running at power, the tin of the topload became hot, so the topload is now raised 20mm away from the secondary and a gap is left to allow air to enter the topload for cooling.
The electronics that drive the coil, The tube on the right is an RF guard for the bluetooth link. After many problems using bluetooth a solid data connection could not be maintained. This has now been replaced with a Fibre link.
I first used a cheap fibre link to get the data to the tesla coil. This suffered from interferance so I dwitched to bluetooth. The Bluetooth pod, designed to stop the coil fom interfeering with the bluetooth signal. This never really worked. So I switched back to a much better and more expensive, fibre system.
H bridge of IRF460's driven by a large GDT and capacitivly couped (non resonant) in to the primary)
Primary 20 Turns of 0.5mm insulated stranded wire.
Halo Running