Muller Dynamo

[resonanceman]

3. Because the plastic mounts used don't allow me to place magnets directly on the back of the coils, I'm thinking about adding a DC bias to the coils to cancel out the cogging to the ferrite cores to see what effect this may have.

If anyone has any other ideas or suggestions, I'm certainly open.

Jdo

Great work ......that is a very nice looking motor.


Adding a DC bias may get the job done but it is another loss of power that will have to be made up for before you have any chance of OU.

Just from looking at the picture it looks to me like your mount could be drilled out to accept magnets of the same diameter as your rotor magnets...... if  you used the  same magnets you would probably need a pretty good space in between the magnet and core.


gary

Edit

After thinking about it....... you might  try  just placing a magnet or 2 on top of your mount ...... Normally the biasing magnet should  be quite a bit weaker than the rotor magnets but with the increased distance from the core you could have similar field strengths at the core

[bourne]

...... Normally the biasing magnet should  be quite a bit weaker than the rotor magnets but with the increased distance from the core you could have similar field strengths at the core

When you say 'normally' what do you mean?

Has this been used before?, is it an idea that is used today, somewhere? other than the romeouk replication.

[Magluvin]

He's using harmonics I just know it, Iv been so busy havent had the time but I will eventually, if you find the resonance of your coils and adjust your rotor speed to get the resonance tune to load, then drop your rotor speed down to a lower harmonic of the found frequency this will seperate the driver from the generator allowing the generator to go into ou,
but if you just run balls to the wall you will never get ou

Hey Dave

Im doing some tests tonight with my old bifi.  I never really looked into this before.  The bifi has been a mystery to me for a couple years. Never put 2 and 2 together that the bifi could self oscillate due to the combo of inductance and internal capacitance.  But it all makes perfect sense and Romero confirmed that the coils need capacitance to work here.  Resonance.

In comparison, my freq should be lower than the recommended coils due to larger inductance and possibly capacitance(maybe larger capacitance, has anyone measured a litz bifi?

Will be back later.


Mags

[baroutologos]

Hello at all replicators.

i am trying without any success so far regarding all facts about Romero's device. but its only me with my limited skills and imagination.

For a more productive conversation and findings sum up so far, can anyone present with fact and figures:

a) a net energy gain from speeding up coils shorted or under load
b) any gain in terms of power increase / added lenz drag by the use of the biasing magnets?

...
Also, what is peculiar is that Romero tried hundred times at finetuning his motor.
I put myself in his shoes. What will it made me at trying hundred times at doing that? Only if i had noticed a "pattern" or a peculiarity that need extensive balancing in order to get it right.

Unfortunatelly i have not perceived anything like that.
I really hope he will come and give some practical goal oriented info in order to make that concept to work.

[Dave45]

http://www.youtube.com/watch?v=JzSBWJu24gU