Rene/Meissner EMF Higher Voltage Charger Variant

[gyulasun]

Hi SkyWatcher,

You wrote:  "This circuit switches itself, so not sure how this particular circuit would work with a pulse motor, timing wise."
Yes that is ok, it is an oscillator and I did not express myself fully correctly: I thought of a pulse motor which normally would be controlled by with say a reed switch and this reed switch would be inserted in series with the 1 MOhm base resistor in the oscillator.  So the oscillator would work at its own, high efficiency frequency and not at a low frequency as I said but only during the ON times of the reed switch. This way the coils magnetic field would be chopped up whenever repulson is needed between the rotor magnets and the core while the multiple flyback pulses during the reed ON times could be used for either charging or driving other stator coils etc.  Was just a thought, (Callahan and others have shown such circuits,) I not yet thought it over, the charging efficiency may prove to be less than with a normal continuously oscillating operation.   Let's forget I mentioned, 

Your transformator idea is good, and probably there is a limit in the number of LEDs how many of them could be driven in the same way without 'paying' for them.  The higher voltage side of such transformer normally has some ten Ohms of resistance, maybe less if you are lucky, this depends mainly on the power rating it was designed for originally. But if you have a few such transformers then you could drive their paralleled 12V coils together from the oscillator and their higher voltage outputs could drive further independent groups of LEDs.
Gyula

[SkyWatcher123]

Hi gyulasun, thanks for the reply.
That is a good idea, to use the rene/aum circuit with a reed or even a hall effect in a pulse motor.

The tranformer test was showing interesting results, until the charge battery passed a certain voltage, the led bulbs increased in brightness and then it started to affect the charging output.
Seems like when less energy is absorbed into the charge battery at closer to peak charging voltages, the flyback energy is then diverted to the led bulbs from the secondary coil to a greater degree.
Though it still did not affect the actual input to the circuit, most likely because the leds were not tapping energy from the primary input pulse.
I think the led bulbs were just using a small amount of the flyback power, then were using more toward end of charging, so it's an impedance matching thing happening.
peace love light

[gyulasun]

Hi SkyWatcher,

Yes, the output transistor with its open collector in most Hall sensors is npn and can be adopted simply by replacing  the 1 MOhm base resistor with it, to drive the pnp base in the oscillator.  A 10 kOhm resistor directly between the collector of the Hall and the base of the pnp transistor would be needed to limit the Hall transistor current.

I think you nicely described what you found with the step up transformator test in the oscillator, and I agree with your all deductions. How much part of the flyback pulse energy can go to the LEDs or to the charge battery surely depends on which of them has lower or higher impedance, just like in case of a voltage source that is loaded by two paralleled loads of differing values: more current would flow into the load having a lower impedance than the other load.

Gyula

[seychelles]

TO INCREASE THE EFFICIENCY FURTHER , JUST PUT A GLASS JAR WITH A
BALL NIB MAGNET ON TOP OF YOUR COIL..IF IT DOES NOT SPIN, JUST GIVE A SPIN START.

[SkyWatcher123]

Hi gyulasun,  thanks for the positive reply.
Yes, the pulse motor idea would be an interesting project..

Also, i weighed the 12 strand coil, it read 1 lb. 6 ounces, minus maybe an ounce for plastic end pieces.
Looking at the awg. wire chart, then the 12 strand in parallel, comes closer to .200 ohms,

I also tested a couple other coils.
Quickly built an 18awg. magnet wire air coil with at least 3" inner diamter and just taped 20 or so turns together,
measured similar .200 ohms.
That coil ran at fairly high frequency and caused the NPN transistor to heat up and it did not perform as well at similar input as the 12 strand coil.
Then tried a 24awg. single strand air coil, from a previous small newman motor project.
That coil is 14.5 ohms and did not perform as well as 12 strand and was low frequency, the coil also showed heating.

Am aware the multiple strand litz type coil has less losses at higher frequency direct current,
Seems this 12 strand coil works very well, what I've been thinking is, how would a larger coil perform in comparison.
Like maybe a 5-10 lb. coil made from insulated wire used for wiring houses, something with fairly thin insulation and large enough gauge and length to keep the coil below .5 ohms.
peace love light