Feedback To Source

[nievesoliveras]

@tropes and @mk1

What I did instead of rewiring the core was to change the rotor with a permanent magnet rotor and that changed the quantity of revolutions per minute needed to get 30volts in half.
I needed 3500 rpm to produce 12volts. The motor I could get was 1375 rpm. With it the alternator never got to produce any voltage at all.
With the same motor and the permanent magnet rotor I had to use a light dimmer switch to low down the speed because the alternator was getting to hot at 1375 rpm.

so if you cant get the rewiring, get a permanent magnet alternator rotor.

Jesus

[nievesoliveras]

@all

I did the projected circuit and connected it, the motor did not turn. I disconnected the wire coming from the capacitor to the 1.5v battery and the motor spinned well. When I put back the cable to see if after being running it would stay running, there was a big spark and the motor worked no more no matter what I did to it.
I think that I damaged the booster circuit.

Another loss on my feedback to the source obsession.

Jesus

[nievesoliveras]

@all

Well the booster is gone for now. Now I have to deal with a straight 12v battery to make the experiments. The risk is bigger to damage circuits. But there is a goal to fulfill.

I will try this other circuit to see if it works on the negative side. Then I will switch it to the positive side.

Jesus

[nievesoliveras]

The circuit was built. The test was made.
The motor just gave 3 or 4 turns and there was fire and smoke coming from the circuit. After disconnecting the battery, there was this brown burn around the transistor.

I dont know but this has gotten too expensive for me.

It was safer when it was only 1.5v boosted to 12v.

Jesus

[Pirate88179]

@ Jesus:

Look at it this way.  If you fried the transistor it means you are getting TOO MUCH power fed back into your circuit.  With my knowledge being at a novice level in electronics, my guess is that you either need a heavier duty transistor or a larger resistor in line to protect the transistor.  So, (again I am guessing here) when your motor ran for just those few turns, it made enough power to burn up you transistor meaning to me that this is the direction you were looking for.

In other words, I see this as an encouraging accident, not a set back.  But, I understand about the expense part.  Maybe scale everything down and work with lower input energy?

Best of luck to you.  Whatever you do, do not give up.

Bill