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I didn't look closely at your single cap scheme. Was that just a test for your switching?
Silver, that is how I actually switch the energy back and forth with a single cap. You just have to make sure the cap discharges completely before reversing the polarity. I've done this setup with two caps as well though.
Mario great work.
I've just re-started getting back into this project.
I have all ready tried some computer simulations with Multisim.
I have some interesting results... but it is more to get familiar with the circuit.
Plus the stupid software keeps crashing when i try the parr/ser capacitor switching..
I think this circuit needs some inductance to work... I'm not sure if a resistive/capacitive circuit is enough..
In any event, I'm gong to start re-building this thing. (my old circuit is buried somewhere)
The more people replicating this, the better for all
Hope we have success..
You guys have taken this and ran like a fox. Great work all.
I'm still fussing with my switches--at revision 1.4c already. Hopefully within a couple weeks I'll have everything sorted out and be ready to try some testing.
The circuits you guys have worked out, do they assume an AC source and a DC load?
I've attached what I believe to be the best setup to experiment with. It works like the one cap setup but for each half cycle you have one cap, this way you do not have to discharge completely every half cycle and are more flexible to experiment with whatever cap size and load.
I've attached a few scope shots from this setup, the one called 2caps-volts it the voltage across one of the caps. As you can see in this case the cap is quite big so it won't discharge all the way.
@Dog-one:
Yes, I use an AC source and light bulbs as loads for now. Although with this circuit I see about the same amount of power going back that's coming in I'm not able to measure anything on the input since I use an audio amp as my AC source, and it doesn't know what do do with the energy that's sent back, unlike a generator would do, or the mains.
Mario,
At last it should reduce the Input on the Load.
What i have read from the Link i posted, also at Ou.com and Stefans comment's here,
the Power is used to send back to the source, and block the flow from the Source partially. But because a Flow exist, it will power the Load like that lamp between the Source and the Capacitors.
From the Circuit above what Vidbid posted and also from the previous link, you see that they say, you have to charge the Caps during the first quarter cycle, then put them into serie at the 2nd quarter and discharge them.
At the negative sinewave its again the same cycle.
From your scopeshots it looks like your transistors open a bit to early.
Also Stefan said, that S1 is obsolete in his Circuit, so 3 should be enough.
Also, the Setup is like, to bring the Caps once into Serie, and once into parallel during discharge back to source. I cant say yet, when that power occurs, some pictures say, its 90° before you can measure Voltage, some say its 90° after. Your duty cycle looks a bit to long as that your switching match into the Sinewave what you get. And maybe you can adjust the timing.
Theorizer are like High Voltage. A lot hot Air with no Power behind but they are the dead of applied Work and Ideas.
Mario,
At last it should reduce the Input on the Load.
What i have read from the Link i posted, also at Ou.com and Stefans comment's here,
the Power is used to send back to the source, and block the flow from the Source partially. But because a Flow exist, it will power the Load like that lamp between the Source and the Capacitors.
From the Circuit above what Vidbid posted and also from the previous link, you see that they say, you have to charge the Caps during the first quarter cycle, then put them into serie at the 2nd quarter and discharge them.
At the negative sinewave its again the same cycle.
From your scopeshots it looks like your transistors open a bit to early.
Also Stefan said, that S1 is obsolete in his Circuit, so 3 should be enough.
Also, the Setup is like, to bring the Caps once into Serie, and once into parallel during discharge back to source. I cant say yet, when that power occurs, some pictures say, its 90° before you can measure Voltage, some say its 90° after. Your duty cycle looks a bit to long as that your switching match into the Sinewave what you get. And maybe you can adjust the timing.
Hi Joit,
if you read what I posted earlier in this thread you will see that I already did the parallel-series setup, and commented on that. The pics I posted here are only a very small part of all the waves, duty cycles, signal advances and delays I experimented with, I couldn't possibly post and comment everything. My drawing are bad because I prefer spending the little time I have on the bench.
I think I know what the process is, and I think my circuit does what it's supposed to do, only that in order to take advantage of the power sent back I need another source, already wrote about his too.
So please before you comment, read everything, make a circuit, play with it a few weeks and then post your findings. I repeat.. the more people work on this the better...
Hi Mario.
I am using this AC switch (for coil shorting) and it has great on/off times because the mosfet driver has a Shmitt trigger at its input so the signal at the gates is razor sharp during ON/OFF.
Hi Mario.
I am using this AC switch (for coil shorting) and it has great on/off times because the mosfet driver has a Shmitt trigger at its input so the signal at the gates is razor sharp during ON/OFF.
My switch is nearly identical except for the little RF filter. Can you say for sure if the little choke and two resistors do in fact improve the performance? I'm at a perfect spot to add them to my PCB before I submit it to manufacturing.
if you read what I posted earlier in this thread you will see that I already did the parallel-series setup, and commented on that. The pics I posted here are only a very small part of all the waves, duty cycles, signal advances and delays I experimented with, I couldn't possibly post and comment everything. My drawing are bad because I prefer spending the little time I have on the bench.
I think I know what the process is, and I think my circuit does what it's supposed to do, only that in order to take advantage of the power sent back I need another source, already wrote about his too.
So please before you comment, read everything, make a circuit, play with it a few weeks and then post your findings. I repeat.. the more people work on this the better...
regards,
Mario
Dont worry, i have read them all from you and thats why i did post something.
The cycles at this scope shot http://www.energeticforum.com/261823-post160.html look more like, that they charge the caps once at positive side and once at negative side during a positive Sine wave. But not sure how the Input wave actually is like.
Over at Ou.com is a link to a picture from an russian what showed a simple 3 switch. I might try a mechanical switch but still have problems at a simple setup to create enough AC with a simple motor, to get some reliable Voltage out.
Its easier when you have a 220 V or 110V line and put it on that.
And sure, posting the results all times is mostly the same work as to get the device together.
Theorizer are like High Voltage. A lot hot Air with no Power behind but they are the dead of applied Work and Ideas.
Hi Dog-One
I have seen that filter on Doug Konzen's design for generator shorting. Hard to tell if it improves performance as I have not tested it thoroughly yet.
Using those pull down resistors just to force OFF mode for safety reasons.
Hi Mario.
I am using this AC switch (for coil shorting) and it has great on/off times because the mosfet driver has a Shmitt trigger at its input so the signal at the gates is razor sharp during ON/OFF.
Hi kEhYo77,
thanks, that's a good setup. In fact after having reached a proof of concept with my simpler method I was planning on upgrading my mosfet switching by adding drivers, fed from the isolation dc-dc converters.
Keep in mind that each mosfet switches at different times, so unlike the drawing you posted the gates have to be driven independently.
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