Since I am not going to run the 3 rotor TC in a vehicle
I was thinking of using a cheap 110 volt to 220 volt AC transformer
and use a voltage doubler circuit to jack it up
440 volts DC for the capacitor discharge ignition I am designing for the
rotary.

Philippe-Pierre DEJEAN in France had a better idea.  Two transformers.

Thanks for suggesting this very simple and robust power supply Philippe.


The 500 volt supply is working great with a 40 watt load.

Next step is dump some 500 volt charged, 2 mF capacitors into a 2nd gen
waste spark coil primary.

One such coil for each rotor.

Paul Lamar


Hi Paul
In the wiring diagram I think the cathode of D3 should go to the anode of D1

Bill McDonald

Thanks Bill. I think your right. I am probably losing some DC voltage.
I'll check it tomorrow.

Paul Lamar

The voltage went up to 565 with 4 volts ripple peak to peak.
Here is the corrected diagram.

Paul Lamar

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