Use for the Tesla Switch

[Inquorate]

Makes sense

@ kent-eylue - makes sense to me, I see where you are coming from; so long as we assume that the funnel tip has a smaller diameter than the neck of the bottle we are filling..

if the funnel is wider than the bottle neck, water coming down a steep slope (ie faster = higher voltage difference), the water may spill instead of filling the bottle - just as with excess electrons being wasted as heat in a lead acid battery.

Personally, and without doing any experiments to validate my conjecture, I think that the higher the voltage difference, the quicker the switching time must be, to limit current.

And as we may have to switch quicker than the time it takes for ions in the lead acid battery to overcome their inertia, I wonder if it will be a problem.

However, it will be something to keep in mind

L&L

[Matthew Jones]

...just as with excess electrons being wasted as heat in a lead acid battery.

I haven't experienced any heat situations in the batteries. The load is another topic

Personally, and without doing any experiments to validate my conjecture, I think that the higher the voltage difference, the quicker the switching time must be, to limit current.

I haven't noticed a difference. In fact the multivibrator I use for timing the switch slows down when the potential at the bridge gets higher. Or speeds up when the potential is low. This helps overcome the drop in potential when another load is introduced. The system finds a balancing point....On its own.

Matt

[SkyWatcher]

Hi folks, thanks for the replies to my thoughts. Matthew, so you've already been testing something similar to what I mentioned, then would you agree that at the least we can run a load longer this way if we were to re-introduce the energy captured in the receiver battery bank. I have run tests with simple battery bank swapping of 24V series and 12v parallel lead acids and found the 50% ratio to be fairly close. Peter L.'s attraction motor concept plays a role in this method as I'm pointing out, that any counter voltage to our input is just destroyed or wasted, so this is the basic idea to improve efficiency whether or not we pulse the circuit or not. Though with pulsing we may be able to take advantage of a transformer action or Bedini's one diode flyback method and come closer to 100% eff. So Matthew how are the tests looking with the lower voltage receiver batteries.
peace love light
Tyson

[Matthew Jones]

Matthew, so you've already been testing something similar to what I mentioned, then would you agree that at the least we can run a load longer this way if we were to re-introduce the energy captured in the receiver battery bank.

YES... I think but I do not know what this statement "re-introduce the energy captured in the receiver battery bank" means. The point is too reintroduce the energy that has been used already. Thats why we switch direction of flow.

I have stated many time this system in general will allow you to run longer. But that is solely based on the load not the potential between the batteries.
With 4 twelve volt batteries you simply have a lower potential by the time you run it through the switching components. Using a given number of 2 volt cells you can overcome the loss in potential from the components.

I have run tests with simple battery bank swapping of 24V series and 12v parallel lead acids and found the 50% ratio to be fairly close.

How do you come to that conclusion. What kinda load? How did you measure it? How fast were you switching? Or were you?

If you are basing on the batteries absorption of the charge well maybe you have missed the point altogether.

Measure the runtime of a load conventional and this way. Thats the way I test. I watch amps in and amps out of the load to see the distortion of the energy.I watch the waveform that produces that distortion. But time is what matters. The rest can be resolved through testing what loads to run.

Though with pulsing we may be able to take advantage of a transformer action or Bedini's one diode flyback method and come closer to 100% eff. So Matthew how are the tests looking with the lower voltage receiver batteries.

This system should pulse already. You should have off time. If not you most likely you will run into a lot of shorts in the circuit.
I avoid spikes at least for now. The source of the energy does not need to come from the batteries to maintain the charge. An inductive spike on the wire will not produce the same effect in this system. Most likely you will not run as long. Smooth near flat waves forms seem to do better.

But don't take my word for it. Build your own.

Matt

[SkyWatcher]

Hi Matthew, thanks for your thoughts, however I meant for this method to be simple. That is why I stated this only has similarities to the tesla switch design because of the higher voltage into a lower one between same polarities. The simple point I'm trying to entertain is that there may be an added benefit by using a greater voltage difference between the battery banks. By re-introduce I meant using the energy captured at the lower voltage bank through a load by swapping banks or other methods and that was the idea to use a multiple of parallel cells to then swap them. And I'm not saying the current has to be alternately switched if using the pulsing approach. So as a first practical example, I'm thinking maybe a high resistance resistor or series bulbs or leds for higher voltage and lower current which may be pulsed or not and then when primary battery bank has discharged its energy through to lower voltage bank we can swap them and achieve higher efficiency, though if this is old news to people here then take it for what its worth.
peace love light
Tyson

[nilrehob]

Its running!

I just got my TS going.

Jump-started it with an oscillator that i later removed.
Its self-oscillating at 570Hz with an iron-core, goes higher with air-core.
One of the 12v batteries jumped up to 17.37v, probably one of the low ones.
The load is a 5v lamp glowing although not very bright.
I'm taking notes on the battery levels.
Schematic below, each transistor also has a diode across collector and emitter to capture the spikes.
Edit: and there are no caps.



/Hob

[nilrehob]

video

It didn't run in a beneficial way, batteries going down quite fast
I have to tweak it in some manner, don't know how yet.
At least it didn't burn, it never will, it can't short-circuit
YouTube - Tesla-switch part 9

/Hob

[nilrehob]

new run

I think one of the solderings where bad and it made the first run go not so well
I have now added some diodes across the batteries that I'd forgotten and also updated the schematic below to include the new diodes and the diodes across the transistors that where already there in the first run.
Its not self-oscillating anymore. The original 6-filar coil is now only used for triggering, 4 windings to trigger the transistors, one for the signal-generator (and one for measuring).
As a load i currently have a big coil, nothing else.
The signal from the signal-generator is not a square-wave going just pos-neg, but rather a pos-zero-neg-zero signal allowing the big load-coil to discharge when the signal is zero and all transistors are off.
By adjusting the frequency on the signal-generator i think i now have a state where it actually works like a swing, pushing the load-coil at the right moment, never colliding when it swings back.
All batteries are now going up slowly, but its too early to tell why

/Hob

[Matthew Jones]

Thats pretty neat.
Is the signal generator only attached to the system inductively?

Whats with the gloves, in the movie. Do you need a heater in your shop or are just being cool? LOL


Matt

[nilrehob]

Thats pretty neat.
Is the signal generator only attached to the system inductively?

Yes, only inductively.

Whats with the gloves, in the movie. Do you need a heater in your shop or are just being cool? LOL

Its an unheated part of the house, +6 celsius or so, slightly below zero outside, first snow a few days ago still on the groud, might go away today as we have sun again

/Hob

[nilrehob]

new vid

Here's a new video for you all:
YouTube - Tesla-switch part 10

/Hob

[kent_elyue]

Nice work Hob. Thanks for sharing your schematic and videos.

I'm thinking that I'm going to try using diodes between my coils and transistor bases like you have done because I was seeing triggering at the wrong time during my initial experiments. (But I'll also have to wind a new coil now so as to compensate for the additional voltage drop across the diodes.) I was seeing the transistors turn on momentarily during both leading-edge and trailing-edge of my pulses. The diodes should remedy that.

Thanks for sharing your results. Keep up the great work.

[Matthew Jones]

@nilrehob

Do you think its possible that the signal generator is introducing energy into the system even though or especially because, it is attached inductively?

Would there be a way to isolate the 2 components from each other?

You understand why I am going there right? Thats where the critic would go.

Thats great work.

Matt

[nilrehob]

Thanks for sharing your results. Keep up the great work.

Thanks!

I keep the NPN/PNP/2+2-doides as a module, 4 of them in the TS, very handy in all kinds of setups.

/Hob

[nilrehob]

Do you think its possible that the signal generator is introducing energy into the system even though or especially because, it is attached inductively?

No, i wouldn't think so.
The current induced from the SG is "trapped" in the coil-diode-base-emitter-(and back to coil)-path and never reach any battery or the load.

Would there be a way to isolate the 2 components from each other?

Tough call.
Better to power a mini SG from one of the batteries or as a part of the load?
(Edit: by SG I mean signal-generator, not a midget schoolgirl)

/Hob