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Twin Rotor Bedini DC Motor

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Uploaded by on Sep 13, 2008

This motor is a hybrid between a Bedini motor and a DC motor.It utilises both poles off a coil.
The Rotors are mounted on DC motors
which are wired in series with the power coil.There is a capasitor in parallel with each motor.
The motor Operates like this.
When i spin the rotor the bedini trigger circuit switches the transistor on which sends power through the dc motors and then the power coil.This does 3 things.
1.The power coil pushes the magnets on the rotors
2.The dc motors(rotors) spin.
3.The capasitors in parallel with the dc motors charge up.
When the transistor switches off,the capasitor discharges through the dc motors so turning the rotors when a normal bedini would be free wheeling.
I have done some load tests with this motor and found current draw decreases under load.

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Science & Technology

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Uploader Comments (jonnydavro)

  • Can't thank you enough, was thinking along the same lines. Have you tried a C shaped core? On a horizontal rotor, North and South facing vertically? Should see the same effect I would think, though perhaps other things as the magnetic flux would be closer to a closed loop. Thx again.

  • Hi ZPDM123.Thanks for your interest and suggestions.A U shaped core would be an interesting experiment,maybe a flyback core but you can get multiple rotors spinning of a standard bifilar coil like in this vid you just have to use the right type of rotor which is a single diametric magnet.Have a look at my one magnet no bearing bedini coil orientation test as it looks like you can spin a magnet in any position in relation to the coil.Thanks for your comment.Jonny

  • Hi, so the red lead from the meter gos to positive on the battery what about the black lead. Im still confused

  • @333kgb.The black lead goes to the circuit wire you would normally connect to your battery positive so the current flows through the meter before it enters your circuit.Jonny

  • @jonnydavro Thanks for the info. So how is ur motor doing are u getting more Mamps out than put in. I know the secret to get overunity with the bedini. I would have told u but I dont know ur email.

  • @333kgb Hi.You have to be careful when measuring the output of motors.You need to measure the output power in watts and compare it to input power in watts.It is quite easy to get a higher mA output than input but the voltage will be lower so its best to measure in watts.Did you manage to hook your ampmeter up ok?I would like to know what you think is the secret to ou with these motors.Send me it in a pm or i can give you my email no probs.Happy experimenting.Jonny

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All Comments (47)

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  • @drijfkip1 It beggars belief that people fail to understand measuring AC power in watts so easily, it only works with meters and DC, and power meters are designed for sine waves, not the choppy back EMF ridden output of these devices. Try feeding the power to a lab heat sink and measuring the heat increase and do the physics to calculate the power.

  • so does this bedini motor create current or just alter the voltage?

  • "...done some load tests with this motor and found current draw decreases under load..."

    As a good scientist you should first think of measuring errors don't you think?

    Did you use a True RMS power meter? Because digital multimeters are useless in this situation.

    Actually, digital mutimeters are the only reason why people think those bedinini spinning things are something special...

  • please!!!! a DYI! thanks.

  • Ah one more thing, if you flip the electromagnet vertical, you could put in as many coils as you want around the two (vertically spaced) rotors. I suspect that has occured to you.

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