Feedback To Source

[nievesoliveras]

The thing is to conect the three wires to the Rectifier as A B C
If done properly, the controller will activate first A as positive and B as negative by activating Hs1 and Ls2.

After that a bemf on those coils will develop and will be rectified by the Rectifier and converted to Dc and passed to the battery positive and negative connection.

It will not harm the rectifier and the signal will not affect the rectifier either.
Then the signals are Hs1 and Ls3 and that does the same job. And so on.

Jesus

[nievesoliveras]

There are other two points to have in mind.

1. If you are using a permanent magnet rotor you need to add a means to regulate the overcharge.

2. If you are using the alternador as is and it was working before you took it, a 12v bulb must be connected between the positive and the regulator pin #1 and the pin #2 must be conected to positive both through a switch.

The switch is as if it were the ignition key on a car. When on the bulb will turn on indicating that it is ready and the alternator has voltage.
After the alternator gets to its needed speed it will turn off the light by means of the regulator that engaged and there you have it.

A self running and charging alternator.

If you or anyone else can donate an already programmed controller board I will do the work and the test and post the work in progress with photos.

Anybody has an extra board with 6 mosfets and a programmed microcontroller with the program on the schematic that can donate to the cause?

Jesus

[nievesoliveras]

This schematic belongs to this topic. I posted it on another topic but it belongs here.

What the circuit does is that converts 1.5v to 12v and runs a newman motor.  The bemf is 11.46v at the charging diode.
The good thing is that if you touch the AA positive with a wire connected to the charging diode, the battery recovers its initial charge instantly.  But if you let the wire connected the motor stops and the high voltage that shows the neon bulb, burns the AA circuit if you let it connected.

A circuit that activates and desactivates a transistor for a millisecond  is needed.

I have been unable to build it. Any help here?

Jesus

[nul-points]

This schematic belongs to this topic. I posted it on another topic but it belongs here.
...
the high voltage that shows the neon bulb, burns the AA circuit if you let it connected.
...
A circuit that activates and desactivates a transistor for a millisecond  is needed.

I have been unable to build it. Any help here?

Jesus

hi Jesus

interesting circuit!

i think one possible problem with the existing connections is that when you connect your diode onto the battery there is a DC current path from the 12V on the 47uF cap back thro' the coil & diode to the 1.5V battery

even when you aren't getting feedback pulses from the motor your circuit would be trying to apply (12-1.5)=10.5V across the low-impedance of the coil DC impedance and the diode in series, driving current into both the LT device and the battery

try this test circuit - it will decouple the AA circuit from the 12V DC via cap C1 (try 0.22uF) but still allow the feedback spikes to charge cap C2 (try 1000 -10,000uF, say) which can then feed current to the battery (which should be a rechargeable of course)

the inductor (try 2 to 5mH, say) should reduce any large voltage spikes reaching the LT device - the initial energy in the feedback spike will be absorbed instead by the cap which can then charge the battery with only a slight voltage ripple

the schottky diodes, D2 & D3, can be similar to your other schottky (1N5818) on the LT device

NB.  this circuit will allow you to separate the action of feedback from coil-field collapse of the motor from the previous action of feedback of the inverted DC energy at 12V which has just come from the 1,5V battery

don't be surprised if the proportion of coil feedback is not as big as it seemed (because the two actions were combined previously) - you might find that the feedback spikes are not sufficient to recharge the battery after all !     (i hope i'm wrong about that!!)

hope this helps

all the best
np


http://docsfreelunch.blogspot.com

[nievesoliveras]

Thank you @nul-points!

I will send for the parts as soon as I can.
The problem with getting the parts on my island. By the way I am From Puerto Rico.
That is on a corner of the bermudas triangle it is called the Puerto Rican Trench.
I sent for parts and always comes short and sometimes the wrong ones are sent.

So I usually wait to have as much ideas as I can gather and make a list of the parts needed. Even though they come with some parts short, I experiment with what I got.  (With short I mean that they have not the parts and stop the shipment, I have to inquire and tell them to send what they have, that is when the wrong ones are sent)

A map where Puerto Rico is:

Jesus