Reactive Power Generator (RPG) Replication Project

[Donald Haas]

Had an auxiliary battery failure (raggy old L& G batt). When I checked the motor it wasn't running and the 40A breakers were open.

Because of the aux battery failure the swapping relays couldn't be switched properly and the breakers did their job. PTL

The aux batt was down to less than 3v. Old batts like that one will dive after they get near 11v.

7, $9 sic fets blew. I was planning to pair the coils and go with 8 fets. I have cut the 2, 4 fet boards on my cnc router and they are ready to populate.

I'll be driving 4 fets with each driver instead of 8. My be cleaner drive pulse.


It seems to me that every unsoldered connection can be an additional loss.

I was connecting each coil strand to barrier blocks that have 2 screws for each wire and then a wire to the cct board from the block.

Now my new boards will have 1/2 the number of unsoldered connections and no wires to the boards from blk to brd. Got to be less losses.

I'll be using barrier blocks with pbc pins soldered into the cct brds and reduce # of unsoldered connections that way.

J Bedini would solder all coil wires directly to board. Peter L has used barrier blocks in his demos.

be talkin'

bro d

[Aaron]

Yep, definitely solder everything after the circuit works.

Use big fat cables for all power/battery connections.

Refrigerator tubing is inexpensive and makes great common bus bars.

[Aaron]

After a bit of research on different batteries, the following may be fairly accurate in terms of lowest impedance at the top to highest at the bottom:

LiFePO4
AGM Starter
AGM Deep Cycle
NiMH
NiCad
Marine Lead-Acid - EDIT - not completely confident about the marine battery being in this position??
SLA Gel
Flooded Cell Lead-Acid Starter
Flooded Cell Lead-Acid Deep Cycle

I intentionally left out lithium ion because they're so dangerous. And I cannot recommend anyone spike charge the nimh or nicad.

In Eric Dollard's self-running fuse box, it originally had nicad batteries and with the gel and agm 35ah lead acids he used later on, it didn't self run the same way it used to. It had a multivibrator that would continue to buzz for a long time after it was turned off. This "free energy fuse box" basically had a couple of these batteries and would either give you 12v or 24v.

Mario mentioned the low impedance of AGM and it does appear to be one of the lowest. Again, I just don't like that it is maintenance free and overcharging or charging with too high of a voltage can split the water and make it off gas. I've destroyed a number of them in my experiments over the years. They were mostly 35ah 12v deep cycles from harbor freight.

I can't guarantee the accuracy of the ranking above, but I think it is pretty accurate.

[serendipitor]

"Mike Clark's generator shows motor wave forms that are remarkably fast in rise time and fall time, so they are somehow achieving this goal of concentrating the magnetic flux near to the magnets, and I am not at all clear on how this is happening. It seems that their circuitry is more simple than what I was creating when I was working on it."

Paul B talked a lot about silicon carbide mosfets as being "the greatest invention...........".
He was referring to the rise and fall time speeds as being extremely valuable and a great benefit to our direction of research.
He is advanced in the art of mosfet switching and he said that they can be "tricky" to get right.
He talked about the length of time from rise to fall of the spike as the place where there can be great improvement in charging energy.

When I was referring to those fast rise and fall times, I should have made it clear that what Mike showed in his video were current wave forms, not voltage. Those current wave forms, which are responsible for actual torque generation, are what Paul B. extolled as "beautiful wave forms!" in his later video. We did not see actual voltage wave forms in Mike's video. It takes a very expensive clamp probe to see very high speed current pulses, and for the most part we don't need to. Just the basic outlines of the pulse will show what is needed. I use a cheap Chinese clamp probe which is fine for the most part, and would not be without it.

We tend to look at voltage wave forms across the FETs more, since it is easy and of concern for not blowing things up with the high voltage spikes. Those spikes result from a number of factors, about which I am writing a small article. I will say that going to SiC FETs has resulted in faster switching fall times, and hence larger spike voltage, but how that impacts battery charging is unclear. After all, we have been hearing about LA battery pulsing for decades, using all kinds of devices, including slow bipolars (as in 2N3055s...very slow). So it remains to be seen how the SIC FETs will improve things. The main thing that I would point out, given what I see in the broad survey of people's pulse motor schematics, is that proper gate drive is very important. Without a serious gate driver in front of any FET switch, the speed will be compromised greatly. With most of the SiC FETs, an actual -4V supply must be used to turn them off properly, so that is an additional complication. I use switches that are SiC but have a conventional 0-15V input range. They seem to be working well as far as being faster than the conventional MOSFETs. I also note that MOSFETs can go into a stealth failure mode if over stressed, where they will still switch current OK, but will also act as a clamp at high voltage, and limit those spike effects. Something to be aware of.

The ringing wave forms you are showing are an indication of the self resonance of your inductors. All inductors have a self resonance due to the inter-winding capacitance, and this will tend to define the rise and fall time of the voltage. The current in the coil, as it is discharging into the battery, ramps down until the self-inductance of the coil no longer generates enough voltage to reach the battery level through the diode, and the diode turns off. But there is still some small bit of current flowing that has nowhere to go, so it will oscillate at the self-resonant frequency of the coil and radiate away. This is only a small energy loss in this context, so not of great concern. The effect is independent of what ever switch is being used.

Good Luck.

[Donald Haas]

"what Mike showed in his video were current wave forms, not voltage."

Mike's wave form pic.
Is not the yellow trace an electrical wave form? The other (pinkish) is the stated current wave form.
This is from Mile's video about his RPG.
MC SCOPE SHOT.png
Thanks,

bro d

[serendipitor]

Yes, that does look to be a voltage wave form, which I was not familiar with. I'll give it some more attention.

The waves that I am referring to are from the 2020 video, 53 minute in. The run and capture currents are almost identical save for the spike of current on the capture wave. I am stumped as to how those are being generated. It would seem that they are still tinkering, as a later video shows quite different shapes.

[Energy_Hack]

Yes, that does look to be a voltage wave form, which I was not familiar with. I'll give it some more attention.

The waves that I am referring to are from the 2020 video, 53 minute in. The run and capture currents are almost identical save for the spike of current on the capture wave. I am stumped as to how those are being generated. It would seem that they are still tinkering, as a later video shows quite different shapes.

I thought the same and came to realize he’s measuring b4 the diode and not after. The one with spike is measured after coil and you’re seeing the mag field collapse shooting a burst of current into wire. The one without spike is inlet to coil. At least that’s the way it makes sense to me.

EH

[yaro1776]

Hey Donald,

Congratulations are due to you for your very nice and solid work on the RPG replication - most excellent. I became aware of this thread via the last two emails of Aaron's Energy Times Newsletter and have been tremendously entertained and fascinated by the progress and results.

Overall, this a great and informative thread and hats off to all the participants for sharing their work, thoughts and ideas.

Yaro Stanchak

[Donald Haas]

Thanks Yaro,
Keepin' on.
bro d

[Donald Haas]

serendipitor,

Have you had a chance to learn if 4 pin sic fets produce higher spikes than 3 pin sic fets.
I saw a graph that indicates that their switching should be faster.
I'm planning to check this out.
bro d

[ggx9]

It's too easy to blow out FET's and other devices in this kind of experimental work.
Does anyone have a good FET based circuit breaker circuit to offer for DC ?
I've been browsing internet but nothing good yet.

[Donald Haas]

Hi ggx9,

I have been using these. These are rated for up to 100v and claim to be very fast.
They will save your circuit boards but maybe not your fets.
If one shorts a battery across a fet, I expect the fet should blow. If a fet was rated for 1k amps it might not blow.

https://www.amazon.com/dp/B09H4WWNH4...roduct_details

We Win!

bro d

[serendipitor]

serendipitor,

Have you had a chance to learn if 4 pin sic fets produce higher spikes than 3 pin sic fets.
I saw a graph that indicates that their switching should be faster.
I'm planning to check this out.
bro d

No I have not, but I also see the same indications in the various 4 pin literature. While the quest for ever faster switch time is important to squeeze the last few points of efficiency out of, for example, the high frequency motor controllers in EV's, I am in the midst of a deep dive into what that spike voltage is really doing for us in these pursuits. As for working theories, I am of course aware of the past writings, Bearden, JB, etc. about so called radiant energy. As far as I am concerned there is plenty of murky territory to be investigated, which is the nature of a working theory. Given the wide variety of devices that have shown some sort of anomaly with battery charging circuits, when it comes to speed of switching and high spike voltages, more is not necessarily better.

An enigma in all these battery capacity discussions is the so called South African generator:
http://www.free-energy-info.tuks.nl/SChapt6.html

The claim is 150w of power using two little 7Ahr scooter batteries. The circuit shows an IRF840 switch driven with a discrete NPN gate driver, which will probably turn off the FET reasonably quickly, but I would like to see the scope traces for this circuit. Certainly it is not extraordinary in terms of speed. So whatever it is that allows for his claimed 150w yield, it is not ultra fast switching.

[Aaron]

when it comes to speed of switching and high spike voltages, more is not necessarily better.

So whatever it is that allows for his claimed 150w yield, it is not ultra fast switching.

I would comment on a distinction here - more is better. That is why the results go way up with SiC diodes for example because they get more of the spike. The typical silicon diodes John used were very slow and sluggish and wasted a good percentage of it.

If anything written about that African motor/gen is even true and if they are getting those results, rather than saying more or faster is not necessarily better, I would point out that again, if true, that it can be done with slower switching.

So if that African build does work and if the switching was faster and they were using less lossy components that they would get even better results.

[sinergicus]

Recently I found a post in a facebook group in that somebody posted some informations about how he obtained speed under load from his generator coils... Basicaly he used a little circuit to to switch his generator coil on load ,at top dead center... lenz has a push effect on rorttor.... I think ,his method can be used for improving any moto- generator design in our experiments... ... I asked him questions but I still have unclarities regarding his circuit.... Skematics was provided and if you consider to be usefull, I would be pleased to clarify with you his circuit.... My electronics knowledge are not very good so , maybe you will ask him more to clarify that... Here is the facebook link AKULA 0083-free energy | HOW TO DEFEAT LENZ LAW | Facebook e1726d62-9aa6-486d-bd5e-c41c9becd5e6.jpg schema.jpg