I was experimenting this evening, i had a rotor disc with magnets attached and a bifilar drive coil using the Bedini circuit to repel the magnets.
With 8 magnets the rotor was drawing around 300 mA.
I doubled the magnets to 16 and the rotor was drawing around 200 mA.
I would have thought that more magnets meant more 'on' time thus drawing more current ?
Is it because more magnets results in faster RPM so each pulse is then shorter ?
If that's the case then what's the critical threshold of the tradeoff between additional magnets (and the resulting additional rotor mass) and decreasing current draw ?
Unfortunately i don't have enough of these magnets to experiment further.
Any advice greatly appreciated,
Gary.
Probably because the motor is more efficient with more magnets. The higher rpm will also provide more "juce" to feed back to the supply. Remember, that this motor is also a generator. The higher rpm, higher efficiency, the more power it delivers back - resulting in less ampére from the power supply.
Vidar