Muller Dynamo

[conradelektro]

   
Found some D-FW79 SMC sensors that put out high going signal
and operate from 5v to 24v dc. Output voltage depends on input.
Triggers the Fet directly without additional circuit.

thay

@thay: I could not find the sensors you mentioned, could you please state a source?

Greetings, Conrad

[maw2432]

Hi, someone mentioned rotor height adjustment earlier, heres what i did.
http://img860.imageshack.us/img860/9404/rrotorheightadj01.jpg
http://img829.imageshack.us/img829/8135/rassembled02.jpg
http://img848.imageshack.us/img848/6374/rassembled01.jpg
A s/steel bolt with the top machined to move the rotor shaft up and down.

Awesome work you guys, some amazing constructing/testing your doing

@ElectrOn   

Very nice looking rig.   What are you using for those nice looking bearings?  How well does is spin?

Bill

[khabe]

What is the point of iron washers between coils and magnets on the stator plates 
Part of brilliant flash of concept idea  or ...  unfortunately these washers give nothing besides losses 
I guess that provisionally was matter of economy - just money saving - it is easy to try coil top magnets without glue, no needs to colly expensive today magnets
cheers,
khabe

[Tudi]

@khabe, though you have a point. This whole device has quite a few very non optimal or controvertial design parts. Neverthless, in case you manage to obtain a COP 100x ( just a random large number) you do not really care how unoptimal your design is, mostly if you break the functionality by changing it.

Since the coils will have a switching matnetic field ( pull / push ) cycle, if you do not put the washers there to shield the top magnets from bottom ones. At some point they would "fly" away. Having a shielding between the coil and the magnet makes you wonder how do they even influence the output of the device ?

[gyulasun]

I know this may be a stupid question to some of you but I have to ask.  Please help me understand all this AC to DC and back again stuff. 

My understanding is the design of the generator goes from AC to DC with the FWBR's.  Then the DC to DC converter is used to control the amount of power to the driver cores so the motor can be a self runner (with power left over).   

My question is this,  if there is all this excess (OU) power coming from the motor/generator why not just use one of those AC to DC power supplies like the selectable DC out supply I have for one my laptop computers and eliminate all the FWBRs?


Second question,  does anyone know if a Forstner drill bit is ok to use on acrylic?

Thanks
Bill

Hi Bill,

Trying to answer your first question.  Romero used a separate diode bridge for each of his generator coils, ok.  He did not connect the gen coils directly in groups like in series or parallel but he connected all the DC outputs of the individual diode bridges in parallel.  This is surely important once he did so and then this would involve as many AC-DC converters to use as the number gen coils dictate. 
Using the many diode bridges surely costs some loss in useful output power because of the forward voltage drops of the diodes and your idea to simplify sounds good of course.  However, if you study the input circuit topology of most AC-DC converters you would find their AC input includes diode bridges... in 99% of the cases I think. It is true that then it would involve only one (common) diode bridge.
Another issue to consider when trying to connect directly in series the generator coils (to use a single AC-DC converter for all of them) is the phase differences between the individual output voltages, it should be studied, otherwise you may have even bigger power loss than the diode bridges otherwise involve.

rgds,  Gyula