Battery Charge

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#1
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Hi

This circuit is on a small outboard & is used to charge a lead acid 12volt battery. I would like the circuit for the regulator in the picture. It seems to limit the AC output of the magneto before it goes through the rectifier. Any ideas on how this is done? Please look at the picture.

Note: There are only two wires on this device.

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Two 13V zeners back to back?

Imagecraft compiler user

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Any markings on the regulator that Google can search for?

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Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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I don't have the regulator itself but i can give you the part code if that helps? I know its got to be something simple, SCR or DIAC maybe. I just cant imagine the circuit yet. I have had a look for its circuit online but its not there. They want to charge me $130 for a small metal box Then there are other items to buy but i have that worked out. Am i being too cheap haha?

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Looks like shunt regulator.

Quote:
The way this type of regulator controls the alternator’s output voltage is by simply shorting out the stator winding for one cycle of the ac waveform. This is called shunting. This is done because it is much easier to short-circuit an inductor (the stator winding is an inductor) than to open-circuit an inductor. Very high voltages are induced when an inductor circuit is opened. This may cause a breakdown in the winding’s insulator.

See more details on:
http://mastercircuits.blogspot.com/2010/05/motorcycle-voltage-regulator.html
Therefore kind of zener driven SCR circuit with sane shunting capabilities shall do the trick.

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Excellent work Kas!
I had been looking on the net for pictures that could resemble what would be in this box. I have found pictures that you supplied in the link but it seemed crazy to me to short out the winding. I will read through the link that you have supplied as it seem to have more detail than i have seen so far.

Now for some reading
Thanks :)