The Robert Adams Pulse Motor Design Review

[EMCSQ]

This free hump IMHO is a standing wave that is created when the coil is switched off.Its frequency depends on the length of the wire.

There is another setup of a Spanish experimenter, consisting coils of high real resistance (not impedance!). (Both have together about 68 Ohms)
The duty cycle is 25% . He did not mention that the device does not heat up , but claims to have overunity (by the values published in his blog). So heat is less likely.
His circuit is really simple:
El Motor Adams
I have ordered the magnetic sheet allready.(I will rebuild his device)
And if anyone has build up the setup like him he/she should publish the facts observed. I think its a conversion of heat into force / hence electricity.

[plengo]

I have been testing my Adams with one drive coil only and one generator coil. The generator coil has one LED connected so to create an small load.

The drive coil is being pulsed 5 times as shown on the picture of the scope. Battery voltage IS RISING as it runs. It is running at 20ma - 12v from a 85 amp/h lead acid battery.

I am redirecting the pulses BEMF from the drive coil back to the driving battery using a diode aka Bedini style. This is just a few test I am running.

The interesting thing that I don't understand on that scope shot is the extra "hump" I see. In yellow is the induced voltage on the drive coil as the magnet passes by. One can see clearly 5 pulses being done as TDC BUT where the extra hump comes from. It only shows there when I direct the BEMF back to the battery. As Rod said: funny things start happening when one puts a load on it.

The blue manually painted line is where the induced voltage would go when not pulsing is done.

Fausto.

[plengo]

Great observation. I have seen this many times and sometimes I even thought I have achieved OU. In my case when I let the system run for weeks it would eventually loose energy and the battery would go down in voltage.

Some explained to me that what is happening is that as the battery discharges the internal resistance changes (increases). The voltage gain is simply a "ghost" voltage caused by the high voltage spike and being a consequence of a thin layer of "oxidation" on the lead plates that eventually is consumed by the acid and because the battery is indeed loosing energy it will loose even this "ghost" gain.

That being said, I am not sure If I agree with this theory in every case. Certainly in some cases but not all. Besides this seems just an explanation of how a lead acid battery works anyway.

Fausto.

[citfta]

Voltage variation

Well I think I have an explanation. I have been working with Bedini's stuff for a couple of years now including the window motor and SSG and the Tesla switch. I think you have hit a perfect balance point where you are keeping the batteries charged the same all the time. I have noticed a variation in voltage between day and night also. Some of the people have noticed with radiant they sometimes charge better at night. I have not seen that yet. What I have seen is batteries are very sensitive to temperature change. As my room where I do my tests cools off at night the voltage drops a few hundredths of a volt. In the morning when the room warms back up they come back. I think this may be what you are seeing.

By the way I have been following this thread with great interest. You are doing a great job helping us to understand what you are doing and why. Thanks so much for sharing what you are learning.

Carroll

[toranarod]

[toranarod]

[toranarod]

my updates: today I build my rotor with all 4 magnets (I don't know their gauss value but soon I will know) and 4 very small trigger magnets. Rotor is to spec of 200mm diameter.

Switching hall-effect A1302 is in use and I am programming a Arduino Duemilanove. This baby is sooooo easy to program and it is very fast too. I can pulse at microseconds with very easy which I think it is already too fast for this application.

I am able to switch from 1 to 20 times or more per top of the sine wave when magnet passes on coil. My coils are very small and under 10 ohms as I used them for an Adams motor project of 5 or more years ago.

Voltage directed with a diode from the coil easily generates 250+ volts which charges a 10uf/250V cap in about a second or so.

It is interesting how this motor behaves as one changes the position of the hall-effect and the numbers of pulses per pass. I have not being able at this stage to do anything fancy since I am only at the setup stage.

I am waiting for the correct coils from toranarod and a switching board too. I think I will, if I get any success, port this to a Arduino processor since this baby is soo cheap and easy to program, much easier than the PICF16XXX family.

Fausto.

your efforts are exciting and you have worked very fast to get the equipment together.I like your choice of processor, Please keep me informed of how it works. the control phase is very important and there is optimized positions for control. I am recording data at the moment to try to create an automated system that will tune its self as it runs. you will notice some very interesting
phenomena as you change load condition. I want to write this into a computer program that will run a much lager system.
I have made many observations that have not been documented. But I will
It just takes so much time. I am looking forward to your input I am hoping you use different magnets and and make other changes. So we can compare notes to arrive at the best design. I will make all data open source.

good work

cheers Rod

There is nothing specialized about my coils except they are matched and have Iron cores.

can you measure current back to the battery and current out. I am very curious about your setup.

Have you added the Capacitor I call C12. This is one component that is important that I am still trying to explain its function. I know what it is doing but why is it reduces current consumption is hard to calculate

[plengo]

my updates: today I build my rotor with all 4 magnets (I don't know their gauss value but soon I will know) and 4 very small trigger magnets. Rotor is to spec of 200mm diameter.

Switching hall-effect A1302 is in use and I am programming a Arduino Duemilanove. This baby is sooooo easy to program and it is very fast too. I can pulse at microseconds with very easy which I think it is already too fast for this application.

I am able to switch from 1 to 20 times or more per top of the sine wave when magnet passes on coil. My coils are very small and under 10 ohms as I used them for an Adams motor project of 5 or more years ago.

Voltage directed with a diode from the coil easily generates 250+ volts which charges a 10uf/250V cap in about a second or so.

It is interesting how this motor behaves as one changes the position of the hall-effect and the numbers of pulses per pass. I have not being able at this stage to do anything fancy since I am only at the setup stage.

I am waiting for the correct coils from toranarod and a switching board too. I think I will, if I get any success, port this to a Arduino processor since this baby is soo cheap and easy to program, much easier than the PICF16XXX family.

Fausto.

[toranarod]

More up dates

I have some more information that I would like to share.

This work continues to move forward.

Important details of this work. Also C12.

[penno64]

Hi Rod,
I got down to Jaycar's to pickup my PWM kit (very scare - had to get in from
another store) and lo and behold, the guys are there looking at the new cheap arduinio (FREETRONICS- compatible knock off.).

So I invested in one and, also a two line display that links to it.

Now, all else needs to go on hold while I remember how to program.

The sales guy assures me there is much on the website.


BTW- thanks so much for all the detail.

Kindest Regards, Penno

[nodrog]

Hi Toranarod and others

Thanks for the back-to-basics and clear description. Your experiments are both interesting and compelling. I am working on upgrading my setup to something like what you are doing but, from your YouTube posts, some of it would be lost on my more primitive understanding.

In about a month I should be ready to get down to specific details. I'll pm my email when I have my easypic6 (or similar) setup.

Thanks for your good will and informative posts.

King regards, nodrog.

[toranarod]

Hi Rod,

I am keen to build your controller and wish to ask if I may get a copy of your
code for the PIC.

Kindest Regards, Penno

yes if i can email you i will send you the code file in an attachment

[penno64]

Hi Rod,

I am keen to build your controller and wish to ask if I may get a copy of your
code for the PIC.

Kindest Regards, Penno

[toranarod]

toranarod

I am considering purchasing an easypic6 development board and setting up a motor configuration similar to yours. Were I to forge ahead with this, would it be reasonable to expect that I could load your hex file into a chip of like specification? Not sure I am up to assembler programming but I have done a bit of C from long ago.

Your comments and advice on this would be appreciated :-)

Kind regards, nodrog.

[toranarod]

Nope, thats fine. I was trying to remember what you had said about the cap switch out not being on when the coil drive was on... but had not allowed for inverted logic, lol

On <http://www.overunity.com/index.php?topic=10398.new#new> message #400 I have posted a coil shorting jpg of 8 shorts at peak sine wave.

I mention this as the computer might be a hold up for many (me too) and my circuits could be adapted to run the Adam without computer control... just using pots adjust the pulse width and number of pwm pulses. Also just using two matched (same number) N channel fets for top and bottom switching.Any interest let me know... I'm in the middle of a bunch of things at the moment so it won't be instant. Didn't post here as could be OT.

Rod, now if you had been using the arduino uno... LOL, love to get started on that one....

Ron