Rene/Meissner EMF Higher Voltage Charger Variant

[SkyWatcher123]

Hi gyulasun, thanks for the reply.
Yes tinkered is the word, took me a bit of tweaking to get it running well and with a solid tone heard from the coil.

I tested the charge transfer efficiency on the circuit just recently posted, it is around 74%.
That i think is one of highest percentages so far, the rest were probably in the 60% range.

Meaning, i discharged battery with a known watt hour load, then charged it with circuit back up to the voltage it was previously charged to, which is full charge.
Comparing the total watt hours out from the boost converter.
Interesting i think, considering these batteries supposedly have only a 50% charge transfer efficiency.

I rewired the circuit again and will now test the same circuit, with 8 strand primary, 4 strand secondary and using the voltage doubler.
peace love light

[SkyWatcher123]

Hi all, I know I'm posting alot of circuits, just trying to see what works the best.
This latest circuit, is the rene split negative, with the sucahyo oscillator.
It is performing even better than the previous circuit, it also has a very short pulse on time, due to the reversed PNP transistor.
This is a good one to try.
peace love light

[gyulasun]

Hi SkyWatcher,

Well, the importance of the duty cycle i.e. the ON time of the switch nicely manifests in this circuit.
The lower the ON time the less loss occurs in the coil as was explained in Verpies post. IT is good you
experience this.
You could explore this better with a variable pulse width and variable frequency generator of low
power consumption like a CMOS 555 timer (LMC555 or TLC555 etc).  The output of such generator
can directly drive the base of your single tv transistor via a few kOhm resistor.
You surely have seen 555 type timer circuits with variable duty and frequency controls, here is such:
https://teslasforsustainablesociety.wordpress.com/2012/11/page/5/  and scroll down to the 2nd schema
under the Astable Frequencies Chart.  5V is already enough for a 555 and it could be obtained from your
main DC supply via a series 15V Zener diode in the positive rail of the 555 to drop the 20V to 5V or so.

If this reversed pnp transistor "trick" provides a very short ON time (I have no problem with this), and the
duty cycle is indeed around 1% or so, then the 555 timer may not bring much more improvement, perhaps
it could give more flexibility with its variable frquency output too (besides the low duty cycle possibility).

All I am saying is that with such pulse generator you do not depend on the limited adjustability of blocking
oscillators or similar circuits for frequency and duty cycle you already showed:  you could have even a single
MOSFET switch driven by such generator and flexibility to choose how long the input current is allowed to flow
into the coil.  I think these aspects can lead to have the best results obtainable with components at hand.

Gyula

[SkyWatcher123]

Hi gyulasun, thanks for the positive reply and good information.
At some point i may test what you suggest also, as i have built 555 timer circuits with mosfets previously, just keeping it more simple for the moment.
Though yes, an experimenter showed his oscope data on the net and it was around the 1% duty cycle at all frequencies.

I also have just realized my multimeter may have been malfunctioning.
I noticed the amperage at the 20 amp setting fluctuating and pushed down on the meter lead going into the meter and it lowered by around 100 milliamps and then stayed steady.

That problem will not effect this type of circuit as far as the total power efficiency of the circuit, compared to what is actually usable through the oscillator.
However, it does place into question, the charge transfer efficiency data.
If it was showing falsely higher on the last tests and for that matter, all previous testing, then with the rene/aum circuit, the true charge transfer efficiency into the battery is much higher.
After i finish this charge/load test with this circuit, i will retest the other circuit, just to compare and get more accurate data.
I think a new meter is called for soon.
peace love light

[gyulasun]

Hi SkyWatcher,

It is good you noticed the multimeter issue, we always have to question our own measurements and double
or triple check every measured result. 
Would like to show you member Groundloop's 555 timer circuit, it is a little bit different from the circuit shown in
the link I referred to yesterday:
http://overunity.com/8411/steorn-demo-live-stream-in-dublin-december-15th-10-am/msg243175/topicseen/#msg243175

He used Pin 7 for driving a MOSFET while normally it is Pin 3 which is defined as the 'output' for a 555 timer but that is
also ok.  His 555 chip is pin compatible with the types I listed as CMOS types yesterday. 
Of course you can use your own 555 circuit you mentioned, no problem.   

Gyula