Re-Inventing The Wheel-Part1-Clemente_Figuera-THE INFINITE ENERGY MACHINE

[kEhYo77]

I think I've got it!

[allcanadian]

@TK

I wonder if the Arduino will turn a 2n7000 mosfet on directly. If so they could be drivers for larger, regular IRF series mosfets rather than logic level ones. Or if it would makes sense to use a bipolar transistor as the driver for a regular mosfet.

Arduinos are so cool, and it's great that they are programmed in c.
   

I would agree with KEhYo that a good mosfet driver is the way to go otherwise the on/off slope is marginal at best. As well opto-isolation works as long as we understand we pay for it in efficiency and again the on/off transition suffers, so as always it is a bit of a balancing act.
I love Arduino's, remember the shit we had to go through just to make a simple multi-stage sequencer or a non-linear duty cycle, it's no freaking wonder I have lost so much hair in the last 20 years. Last week I through together a temperature compensating well pump control with the Arduino which adjusts the pump on/off time as well as the time between cycles based on OAT so I can use the shallow well's natural ground heat to keep my horses water trough full and from freezing without an expensive resistance heater. So it's 10pm/-10 Deg C, pitch black and there I am in the middle of a pasture staring at the screen of my laptop programming a well pump with two horses looking over my shoulder wondering what the hell is going on, priceless.
I think many people have under-estimated these wonderful little devices because as an engineer this is the equivalent of a swiss army knife, a super cheap super easy solution for automation and control.

Regards
AC

[kEhYo77]

Hi AC.
The optocoupler chips consume little current and shmitt-triggered inputs of mosfet drivers don't change the output on/off transition slope in any way. There is only a delay and maybe a minute difference in pulse width.
I think I've got enough transistors (16!) to do the One Way resonant LC switching for both coils. This should be interesting... Some heavy 'U93' ferrites are waiting.

[bajac]

 Hi guys,

I just finished winding the secondary coil, 219 turns of #14 AWG. I wanted to share with you my observations about the calculations for this device.

First, because the air gap has a much higher reluctance than any ferromagnetic material, it does not matter what type of iron core you use. A low cost sweet iron core is as good as a Silicone sheet steel core. The situation is analogous of having a series connection of two resistors, 1KΩ and 1MΩ. The current would basically stay the same if a 1K, 2K or 5K resistors are used.

Second, when doing the calculations for the primary coil, I found that it is almost impossible to obtain 120Vac with a single core set. My calculations showed that 5.6T approximately was required. I derated the secondary voltage to 20vac and the result was 0.8T approximately. So, Mr. Figuera got it right! To have a system with rated voltage, it may be required to add multiple secondary coils.

Please, note that I used 1mm for the calculations. If possible, it is recommended to use even smaller gaps.

Thanks,
Wonju.[/font]

[bajac]

 I have finished building the electromagnets. The iron cores are separated with a paper thin cardboard for a minimum separation distance between the cores. The results are very encouraging. I was able to get induce voltages of 1:1 and 1:2. Of course, if primary cross talking occurs, the gap will have to be larger.

Notice that I built the coils with intermediate taps. The data is

Primary coils:
Wire gauge: #16 AWG
Taps: 215, 415, and 515 turns

Secondary coil:
Wire gauge: #12 AWG
Taps: 115 and 5219 turns

Next, I am working on the circuit use to drive the primary coils.


Bajac