Use for the Tesla Switch

[nilrehob]

The one in post 2459. Caps only

Yes.
And i have done it in several setups.
Unfortunately diodes eats potential.

Here i did another test on the subject:
YouTube - Tesla-switch part 7
I will redo this test using better equipment when time permits.

/Hob

[nvisser]

The one in post 2459. Caps only

[nilrehob]

Thank you
That will keep us busy for a while.
Have you tested the above diode ser. to par conversion and do you think it will work with bipolar switches on both sides?

Not quite sure which one you mean,
but i have only had time to test this on caps as shown in my video,
and the coil+cap is currently only tested in the falstad simulator.

/Hob

[nvisser]

Thank you
That will keep us busy for a while.
Have you tested the above diode ser. to par conversion and do you think it will work with bipolar switches on both sides?

[nilrehob]

Hi Hob
Where did you find this buck/boost Bedini circuit. Does It come from JB?
I think i can see how this circuit of yours work. I had the polarities wrong before

This is the buck-boost converter (also found in the SSG):
Buck–boost converter - Wikipedia, the free encyclopedia

There are lots of other similar circuits (halfway down the page):
Switched-mode power supply - Wikipedia, the free encyclopedia

In this article there is the cap serial in parallel out (pointed out for us by lamare way back)

http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1039,C1014,P1258,D4816

The sequential bipolar circuit is by JB really an H-bridge:
H-bridge - Wikipedia, the free encyclopedia

And here is an interesting article about H-bridge:
H-bridge secrets part 1

And here as well:
Power Smart H-Bridge - BEAM Robotics Wiki

/Hob

[nvisser]

Hi Hob
Where did you find this buck/boost Bedini circuit. Does It come from JB?
I think i can see how this circuit of yours work. I had the polarities wrong before

[nilrehob]

Hobs,

Is this statement a mistake "charge in series and discharge in parallel"; did you mean to say - charge the caps in parallel and discharge in series (12v >> 24v)?

- Schpankme

No mistake.
You will have less losses if you charge in series and discharge in parallel.
The reason is that the Q value for the caps gets higher when in series.

Charge two capacitors (nilrehob)
YouTube - Charge two capacitors

The opposite can be done to coils,
although i haven't tested it as i have with caps:
PS-coil SP-cap (nilrehob)

/Hob

[Matthew Jones]

Hobs,
Is this statement a mistake "charge in series and discharge in parallel"; did you mean to say - charge the caps in parallel and discharge in series (12v >> 24v)?
- Schpankme

No you wanna charge in series and discharge in parallel. That takes the high voltage and turns into onto charge voltage (14 -15 volt) with a serge of amperage.

Matt

[Schpankme]

flip the caps upside-down,
charge in series and discharge in parallel

Hobs,

Is this statement a mistake "charge in series and discharge in parallel"; did you mean to say - charge the caps in parallel and discharge in series (12v >> 24v)?

- Schpankme

[nilrehob]

Hi Hob
Follow the red lines . That looks like a dead short to me

Too long a stare makes you blind i guess

I think it only works the other way around,
flip the caps upside-down,
charge in series and discharge in parallel,
which was my initial intention way back.

/Hob

[nilrehob]

Parallel charge and serial discharge.
Maybe this will work?

/Hob

[boguslaw]

Double Pole Double Throw relay,good idea. I feel it may work.!

[Matthew Jones]

You understand what I am trying to convey right?

You can use a bipolar switch to create the same 2 wave forms on the diagram. I don't know how but I know thats how a bipolar works, so I have been told. It will do the same thing I outlined except across one coil. Giving you the same HIGH potential across the cap bank.

But you don't need to use a switch at all between the bank of caps and the battery.
Just disconnect the cap bank from the charger, switch to parrallel, while at the same time hook up to the battery and dump.

You could have 2 cap banks off the charger. One dumping one charging.
That will allow the top half of the circuit to run continuously.

Its just an idea but its the simplist thing I can think of to correspond with the action of the machine in the video.

Matt

[nvisser]

Vissie
I am not sure why you need to go through all the trouble on the back end near the battery.
This is a [URL="http://www.matthewcjones.com/power/ISCC/Solar_Charger.jpg"]
I don't have it all worked out so I was curious about what your planning and why so many switch's on the end that dumps the battery.
Matt

I tried to do what JB said. It was to use the bipolar switch.
ie: "You know a light bulb just turned on. What if we could use the Bi- Polar switch in the Tesla Switch then we would know when it was off. One switch for charging a cap the other for the dump."

It completely isolates the source and the battery from the caps.
As I could not see a radiant generator in Jb's video I assumed that the 17v is going straight to the 4 caps and then you have to charge it in parallel.

I like your diagram

[Bit's-n-Bytes]

Hi Bit's

I got it running. Tried a couple of different trafo's that I had laying around.

I can't get any charging on the battery, tried various timing settings.

I'm seeing about 9.2 - 9.3V over C1 when C2 is 13 - 17V. Is this what you see too? (I'm using 6,800uF 50V caps)C2 voltage is a product of how long you run the loop function before you trigger the relay to pulse the batt. I am still tweeking that time interval to see where I get the best results. IMO, if you are able to elevate the voltage on the center tap (without that voltage coming off of the batt itself) you'll see this guy really start to perform. My Caps are 10,000uf @ 35V, but I am not saying bigger is better, just noting a slight difference. I ran this to a seperate batt just for the charging leg for 2 hrs. Beggining volts was 12.16 and after the 2hrs, batt volts is 12.22. After letting it rest all night, the volts are still @12.22. Going back to what I explained on the center tap, I am working to feed that from the caps (higher voltage side) which I hope to create a "stair stepping" effect on the trafo's output / cycle. Additionaly I think I need to find some photoflash type caps which will charge quicker. Adjusting the delay downward on the 2 tranny's for the trafo's primary reduces the load on the batt and improves charging. Sorry for being long winded.

Also tried using a MJL21194 in place of the relay, still no dice.

Anyway, I'll play around some more when I have fitted a better trafo. I also splurged and got myself a nice 5A lab p/s, which will come in real handy.


John K.

@John K.

See comments in red above.

Thanks

Bit's