testing tips ('rUK')

(from romeroUK's Muller Dynamo replication notes, as posted on overunity.com)

TESTING/TUNING

make sure you start testing with a load connected then adjust the magnet up and down to eliminate the drag as much is possible and get best output


Actually for the preliminary tests it is a must to use a power supply that stays stable and you know that the voltage is not going down and nothing is changing.

 


Leave the hall sensor to the end to be able to find the right position and do it separately for each drive coil, not having both powered

Initial tests must start with a load connected, at least a 5w but 10w will be better

Don't connect all rectifiers together from the beginning, test and do the magnet adjustments individually

I have spent about one month to do all this testings and adjustments. Small things can make a huge difference, like my extra diodes on top of the rectifier.The gap from the rotor to the coil I had it increased and decreased hundreds of times to get it right.

Something I discovered yesterday is that if I lift the magnet on top of the coil just a little bit then the output is increased. That shows me that I need to take every magnet and check, lifting up and down and add some spacers if required.
I just had it started manually, no battery. I turned the rotor few times with my hand to get some charge to the capacitor then switched the converter on.It started ok, no problem.The advantage here is that the circuit starts working from about 3.5 volts.

The generator is on continous run for the last 3.15 hours.

Do not use shortcuts, if built like I said, reffering to the coils and magnets arrangement then everything else is easy if not will fail. I will show you how many rotors I have made before this one worked, all others looked perfect but small diferences.

I have just tried to have the device running on the side and even upside down.
On the side looks the same but upside down slows down a lot.It might be nothing, maybe the way the bearings are behaving in contact with the shaft, I am not sure yet.

 [neptune: @everyone . suggestions wanted for a small efficient 12 volt drive motor for initial testing ..I wonder if a motor from an old video player might work]
 

I have used them in some other projects and worked good. Best will be mumetal or simmilar but the price is huge.

This generator can be driven by many other circuits or from an external motor connected to the shaft.Don't concentrate too much on the circuit used to drive the coils, that is simple.

People replicating this should have a little bit more big coils (size and windings).
Each coil in my setup has an output of 11.1 -11.6DC after the bridge, not all the same as I have small diferences or misscount some turns during the making of the coils.Having them in parallel I get about 15volts at full speed.The amperage is good but I would prefer to have a bit more voltage.

I had it running almost 5.5 hours without complaints from the neighbours

The generator coils experience cemf depending on the load but at some point the speed goes up now down.
People should see the whole picture, don't look at a single coil, look at the other coils too at the same time.

I have done the testing and all coils/magnet arrangements with a 20w bulb loaded all the time.
It looks that the system is tuned for this load. The coils should have been larger a bit.Next build I will do better.

To get to the point where you will get even a little bit out than in requires a lot of time and work. Check every part of the system, part by part, then when you think is tuned start again.

Let me give u an example:
If u have 10 parts in your system and after jumping from testing the first then second up to 10, when u finished you start again. It can be that part 3 is not as before after u adjusted any other part after. Once you retried everything and got best of all adjustments then you are nearly there.

Do all this testings without having the rectifiers connected together.Measure every coil separately. Even if you don't get too much out from the coils, don't worry, when all are connected things will go magic.

A DC/DC Converter is a must.

Don't rush, I have spent about a month to get here. Once u past the point and for 1 you get even 1.1 then things are easy