Well done Bajac !!!

This is just the beginning . A COP = 3 is a very promising starting point.

Your expertise and skills make sure that the tests are accurate and the measurements are properly executed.

These results shows the potential of this device!!!

Best regards

The way I figure it the power in the first line of the list of measurements I posted from the PDF shows a power dissipated of 0.215 Watts with an input of 9.2 Watts which works out to 0.215 W out divided by 9.2 W in = 0.02 C.O.P. or an efficiency of 2%.

..

Farmhand,


Based on the oscilloscope current and voltage waveform, I estimated a phase angle of approximately 40 degrees. That is why I proposed a 30% derating factor to account for errors in the phase angle and instrumentation equipment. You can even use 75% error, and still, it looks promising. The results are not conclusive because there are a lot of tests that need to be performed on real loads. We should not get excited, yet. I estimated the power at short circuit from the Thevenin equivalent circuit. You should be careful when applying the Thevenin circuit to batteries. The problem with batteries is that the Thevenin voltage changes with the charging state. That is, the open circuit voltage of new and used batteries are not the same.


In addition, I was frustrated with the step driver. Please, note that not all the settings of the step driver and the primary taps give an apparent overunity. I expect the testing results to improve when using a voltage power supply. I just ordered seven wired wound rheostats of 25W/20-Ohms each. I will build a resistor box and wired them in series. It will be much easier to adjust the value of the rheostats than replacing and soldering individual power resistors.


I am also searching for a dynamo that can generate two voltages with 90 degrees difference. Does anyone know?

Quote from: bajac on January 22, 2014, 07:40:45 PM

I am also searching for a dynamo that can generate two voltages with 90 degrees difference. Does anyone know?

( i am not sure)
stepper motor can  generate  that, with low voltage and high ampere
and need low speed to drive stepper.

Marsing,
I am sorry for the confusion. What I wanted to say is that I am looking for a dynamo from which two 90 degree out of phase voltages can be generated. Dynamos normally are single phase. But, if the dynamo has four poles, then its internal connections can be modified to output two quadratic voltages. I referred to four poles because the geometrical and electrical degrees coincide.
Thank you.