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.

What do you guys think?

Will save a whole bunch of money.

Paul Lamar


The voltage doubler will work fine, as far as the capacitor C1 and C2
are large enough.

As the low voltage equipment insulation grade is 1000 Volts, there is no
problem to use two identical cheap 110 Volts to 220 Volts transformers
to make a 110 to 440 volts transformer :
The primaries are connected in parallel to the mains, and the
secondaries are connected together in series as shown.

Philippe DEJEAN
Ingénieur Sénior transformateur

Thanks Philippe. Great idea. You are just the guy I am looking for.


Got any inductance recommendations on the choke inductance for 8000 RPM?
Fires once per RPM. This simple CD system shorts the main power supply
when it fires. I would like to avoid that.

Paul Lamar

Here is the first step. This is a very powerful high voltage power supply.
We are talking electric chair. Be EXTREMELY!!!! careful if you try to
duplicate this system.
One mistake and you are DEAD!!!!!.DEAD!!!!!DEAD!!!!!

The NSA will have a field day with this message :)

Paul Lamar


The stock 2nd gen CAS is used on the stock turbo 3 rotor engine.

I got the 2nd gen CAS set up on the bench with a DC motor driving it.
That way I can test a range of RPMs. This is a 10 ms period  which is about
5 to 6000  e-shaft RPM. This is the upper CAS sensor. The second gen has two sensors.
Upper and lower.

Now I have to figure how to fire all three rotor Capacitor Discharge Ignition systems  at the
proper e-shaft angle with  this info and the lower CAS signal.
The lower CAS puts out 12 pulses for every one on the top CAS.

I am going to try counting lower pulses.

Paul Lamar


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