Self charging Skymachine and JL94 module, by SkyCollection

[Kangsteri]

I think this should have a topic: www.youtube.com/watch?v=D5WuObCX31E

Schematic:
https://i.imgur.io/P9kZ2bj_d.webp?maxwidth=640&shape=thumb&fidelity=medium

Description:
The original circuit is built with two separate modules (one transistor pair for one bifilar coil). Then connecting the two modules in parallel to the 12v battery.
Or it can be build on one board. Half of the circuit is the same (separated by the dashed lines), but twisted upsidedown to connect it parallel.

Stator coils are bifilar 120° degree Air core D coils (not 180° degree!). The impedance resistance of the coils are 12.1 ohms (Ω) with 23 AWG / 0.573mm wire, for each four coils. Measured separately.

Rotor has 4 neodymium magnets North, South, North and South arrangement (N, S, N & S). They need to pass the straight sections of the D coils when spinning.

The PNP transistor is MJL21193.
The NPN transistor is MJL21194.
Optional amplifier transistor pairs might be TIP42 & TIP3055, or MN2488 & MP1620.

Resistors are 1k / 5w, for 12v battery. Or 2.2k / 5w for 18v, 3.9k for 24v, 8k for 30v, 9k (8k or 10k) for 36v, 12k for 42v and 16k (15k) for 48v, etc. The resistor is used for protecting the transistors.

Diodes are SR5100. It's possible to use bridge rectifier too. 1N4007 might also work. Ultra fast UF4007, or MUR460 are most likely better.

The neon indicator is used for protecting the transistors from high voltage spikes.

Battery used for the demonstration is small 12v lead acid chemistry. Bigger battery or different chemistry might cause issues, cause of the different natural resonance.

Power consumption peak is 4.4w and under 4w when the system is stabilized.

Note: The circuit might work better with Low pass filter (Pi / EMI / CLC) to charge capacitor. Rather than the voltage spikes straight to the battery.

Credits:
All credits for creating this circuit and coil design goes to Jorge Rebolledo aka "Skycollection" channel on YouTube.

[skywatcher]

If it would run nonstop for at least some weeks, without draining the battery, it would be interesting.
Or better: get rid of the battery and use a capacitor.

[synchro1]

Placing the battery in parallel with the Capacitor causes the circuit to act as a voltage regulator. The Capacitor alone would charge to too high a voltage to match the input requirement.

[skycollection 1]

In the first attempt as a battery charger I used the two "D" coils since they are "Bbifilar" two coils are connected to the JL94 module circuit and the other two "pickup" coils a diode rectifier bridge was placed on each coil and that I used induced current to charge the battery.

In my new video I changed the strategy in which I built an axial flux stator to place it on top of the magnet rotor, which improved the battery charge much more. In this video you can also see that a full wave diode rectifier was built for the current produced to be taken to the battery, this axial flow is 19 volts out and effectively allows the battery to charge in less time.

A new rotor with very powerful and larger magnets is in process (of which I already did a test) and with this change I am going to produce much more voltage out than the one obtained up to now and thus I will be able to connect this current output to the same battery, in That case would be a "selfrunning and self charging" machine. Very soon I will be able to upload the video. Greetings from Mexico, Jorge Rebolledo.
second video: https://www.youtube.com/watch?v=xdvAdAMB97I&t=50s

[synchro1]

Notice the red and yellow wires connecting the Capacitor to the battery in parallel!