another small breakthrough on our NERD technology.

[fuzzytomcat]

Hi guys,

Here are some other PDF's on batteries which are very good ....

New Dynamical Models of Leadâ€"Acid Batteries ( 1.pdf )
Abstractâ€"This paper documents the main results of studies that
have been carried out, during a period of more than a decade, at
University of Pisa in co-operation with other technical Italian institutions,
about models of electrochemical batteries suitable for the
use of the electrical engineer, in particular for the analysis of electrical
systems with batteries.
The problem of simulating electrochemical batteries by means
of equivalent electric circuits is defined in a general way; then particular
attention is then devoted to the problem of modeling of
Leadâ€"Acid batteries.
For this kind of batteries general model structure is defined from
which specific models can be inferred, having different degrees of
complexity and simulation quality.
In particular, the implementation of the third-order model, that
shows a good compromise between complexity and precision, is developed
in detail.
The behavior of the proposed models is compared with results
obtained with extensive lab tests on different types of leadâ€"acid
batteries.

Behavior of the Lead Acid Battery after the Rest Period   ( 25-509.pdf )
Abstract: - This paper presents the characteristics of a lead acid battery regarding the charge that it can release.
It is desired to determine the effect of the rest period on the charge released by the battery.
For this purpose a series of experiments that contain at least one rest period are presented.
In each of them the charge released is counted, depending on the time when the rest period is started.
It is pointed out that, every battery can release a charge close to its theoretical capacity if the discharge contains rest periods

Fuzzy

[TinselKoala]

A brief summary of my results so far:
I built the circuit using 2n7000 mosfets and some random inductances for the load, and a low-voltage battery pack instead of Rosemary's large one. I was interested only in waveforms, not heating of the load. I found that I could easily produce waveforms of oscillations that look identical to those shown in Rosemary's demonstration video, same magnitude and everything, but at lower _baseline_ voltages due to my smaller battery pack. These oscillations occurred only when FGs were used to switch or bias the mosfets, even using DC from the F-43 FG. No oscillations occurred when the mosfets were biased negatively or positively with DC from a battery or a regulated PS.
The oscillations followed the FG's output in phase but could be shifted 180 degrees by changing the DC offset of the FG's output. The oscillations were indeed "robust" and "continuous"... as long as the FG was used to switch the mosfets. Both mosfets heat up while the FG is used... regardless of whether the battery pack is used.
LEDs in the circuit could be made to light up at various offset settings, but only with both the FG and the 3v battery pack in the circuit-- the battery pack is needed to complete the circuit thru the LEDs, but the power to light them is coming from the FG.
A 100 pF capacitor in series with the positive FG lead completely eliminates the oscillation and the lighting of the LEDs while still allowing a nice square wave to appear on the output at my operating frequency of 1 kHz. The capacitor of course _Blocks the DC Current_ flowing through the FG while allowing the +/- square wave pulses to get through and drive the gates. This radically reduced the drawdown in the FG's output voltage--- I can use 40 V p-p if I like --- and eliminated the LED lighting while preserving the basic output waveform, minus the superposed oscillations. And the mosfets appear to run cooler.
My conclusion is that the oscillations shown in Rosemary's video are probably caused by the same effect as those I am seeing, and that the Function Generator itself is providing substantial power to Rosemary's load in her demonstration. Also, since she and her team have apparently grossly overstated the energy required to heat up her water..... the fact that the batteries don't run down detectably isn't surprising at all... nor is it indication of "infinite COP" or any other excess energy claim.


Oh... wait... I forgot. I used the wrong mosfets. The magic IRFPG50 must be used. Right?
Well, then why do my oscillations look identical to those in Rosie's video?

(The 2n7000 does have an internal body diode effect just like the bigger cousin, it just isn't normally shown on the diagram of the 2n7000.)

[poynt99]

GL.

Your circuit simulated.   

Shown running on 1.5V supply. Runs also on 12V supply. The scope is inverted, but otherwise same wave form.

.99

[Groundloop]

GL.

Your circuit simulated.   

Shown running on 1.5V supply. Runs also on 12V supply. The scope is inverted, but otherwise same wave form.

.99

.99

I did scope on my L3 coil so I got the sinus wave upside down. You simulation runs very much like my circuit.
What worries me with my circuit is that I can't use the output from the L3 coil to make a negative bias
voltage so that I can get rid of the bias battery. The power this mosfet switch did transfer through
my L1 coil is almost nothing so I can't get any real output to drive a load. I also did notice that I had a
range for the input voltage that the oscillator did run. In my setup this was from +1,2 volt up to +5,8 volt.
Above that voltage the oscillator did not run.

Thanks for doing the simulation.

GL.

[poynt99]

I'm going to continue this on your OUR thread. There's more I need to show you.

.99