Great! The first card I plan on fabricating will be limited to 12v cells and about 50 watts but a second card could support 200v with apparently 2500 watts. Once I have the switch working I want to run tests with a scooter or go cart with a data logger.

The objective of the switch was to use solid state parts so that the switching time is fast and efficient. If free energy is available it is likely that the device has to operate with high speed so that it has enough resolution to extract it. I suppose it could be analogous to capturing energy from a wave on the surface of watter. The watter representing some field or vacuum we exist in and the waves are the changing potentials of electricity. If your collection device is not able to move faster than the frequency of the wave then its not apparent that energy exists there.

The TS is interesting to me because it is the most efficient FE attempt that I have made so far making it a good platform for testing some modifications. It should be extensible in that way and useful for real world applications so that others can use it for specific tasks as well as FE research.

I decided not to use physical relays because they are very slow, very inefficient and very expensive. This TS does use two solid state relays formed by mosfets. Also there are no diodes in the path of the switch. The voltage drop across a diode would be very expensive multiplied by each cycle of the switch. All switching is done using mosfets, there are ten in this switch.

Also the control circuit is specifically important to the switch. On paper there are two stages where each side switches in orientation between parallel and series. But when using mosfets and drivers there is a delay between the time it takes for the switching to actually shut off, so four stages are used. Two stages are wait for all switches to deactivate. I don't know how physical relays behave but using a 50% duty cycle seems risky. you would easily be able to see a short circuit by increasing the frequency. If your output is reduced at higher frequencies you know you have a problem.

Thanks for the feedback. I will post more soon.

Jon
http://freeenergygroup.com

I did a power up test of my tesla switch today. I have not tested everything fully or connected all of the battery cells. I have had to replace a few of the cards because the power supplies i build were not very stable under load. I didn't realize that you can buy $5 parts to step up and down effeciently...

Right now only four cards are being used. A computer interface MCU is driving the switch now, a power supply card provides 5v and 12v, a mosfet driver card provides the switch with 12v very fast switching and finally the tesla switch card with six mosfets and four high side static mode mosfet drivers. It all passes individual testing but I want to do a once over before toasting it under load in case there are any problems... This think cost a bit to build...

I have a lot more on the go and i hope to post more results soon.
Questions are welcome...
Thanks
Jon

Just a quick update. It doesn't work as I expected. Its the same problem I have been wrestling with for years. The issue is that the mosfet drivers don't completely shut off, there is 1+- volt for a few milliseconds. This causes both switch stages to be open at the same time which is a short. It lights a bulb but the mosfets get blistering hot after a few seconds...

Switching high side is turning out to be very hard... I suspect I have something set up incorrectly. I can fix it but i have to rip it apart and think about it...
Jon

Yeah, Reed relays would be very interesting to test.

I found some issues with my mosfet driver setup. I am fixing them now and may just use pull down resistors to see if i can pinch off the signal when it is low...

Well here is my board. I have been working off Patrick Kellys design, but I am really thinking of changing up and going with some heavy duty 3PDT Relays. Patrick says that you only need to get a frequency of 100 to get the system to work. 800 max.
Just a little background on me, I am just a tinkerer. I have invented a power supply for the tattooing industry and it is in production. I am a Tattoo Artist and my wife and I own a very nice studio in Colorado with 8 employees. I have always liked to tinker with electronics sense I was a kid. I don't know allot but I do know some basics and I hope that will get me by until I learn more.
And that is why I am here.

I am starting to think that mechanical switching is the way to go, but I am still going to give it a shot the way I am going with the transistors. I hope I can make the time this weekend to finish wiring it up.

your absolutely correct ! 

Lets Get Some Basic Facts Straight About The Tesla Switch

- http://www.icehouse.net/john1/tesla.html -

Here are my test results for a Tesla Switch Circuit which I have built & tested.
You can give your own comments after doing a similar test.
If you know anyone who has got this circuit working with overunity - lets see the proof.

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A small circuit was built using 3 (2 volt 4.5 Amp DT lead acid cells).

The load was a 7 watt 0.47 Ohm resistor.
The current being drawn by the load was between 2 to 3 amps depending on the individual battery potentials.
The load voltage varied between 1.049 volts & 1.7 volts.

The batteries were positioned manually using screw terminals.
A voltmeter was used to check each cell voltage to determine when the battery position should be changed.

The battery being charged got quite warm, on the first occassion. (All the batteries were fully charged)
The other two batteries remained cold during the test.

The battery with the lowest voltage was put on charge, since each battery has a small difference.
The load was permanently connected to the batteries during the test, there was no load switching circuit of any kind.
The batteries should be rotated regularly if possible.

A few important things that I noticed during the 4 hour test period.

The batteries themselves performed well during the test, however after about 3 hours of use I could see a dramatic drop in the overall
voltage of each cell. There was clearly a loss in the system & the batteries were starting to fail. Even though this was a low current test,
at what point does the system begin to self power itself?

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My Conclusions To The Tesla Switch Experiment are as follows :

The circuit did not function for longer than 3 hours with a 3 amp load current.
The Tesla Switch circuit cannot sustain itself with a purely resistive load.
The Tesla Switch circuit is not overunity at least not at 2 to 3 amps.
No negative energy was being fed back into the system to keep the batteries charged.
The batteries eventually failed & discharged because there was a loss in the system.
No load switching was used for this test, however I do not believe it would have helped much.
Maybe the circuit requires very heavy load currents to become effective with switching?

Much of the documentation regarding the Tesla Switch & many other miracle battery charging circuits are flawed or have over exaggerated claims.

- http://www.freeenergynews.com/Directory/Electromagnetic/TeslaSwitch/Tesla_Battery_Switch_PGFED.pdf -
- http://www.energeticforum.com/renewable-energy/962-use-tesla-switch-15.html -
- http://www.overunity.com/6793/simplest-solid-state-tesla-switch/-
- http://www.overunity.com/3316/tesla-switch-need-help/ -
- http://www.overunity.com/5773/teslas-switch-selfradiant-charging-switching-batteries/15/ -

There have been a number of statements made regarding the tesla switches ability to instantly charge a dead battery.
Well, if that were true, where are the actual test results to prove this.
What happened to the other batteries in the circuit that were supposedly supplying all that free energy.
What was the supply current to the load when this miracle occurred?  30 - 50 amps?

If an experiment cannot be reproduced by a competent individual, there must be some over exaggerated claims.

If you are expecting dramatic results from this circuit, you better look elsewhere to keep your batteries charged.
You might get a bit of extra power dissipated in the load, but ultimately you are advised to invest in a permanent magnetic motor & flux gate generator.

You ultimately need a method of charging your batteries without any fuss & without all the complications.

You may have to build a circuit which draws a very heavy load to actually get anywhere with this circuit & that means you need very large batteries & big load.