- #1

Steven Robinson

- 7

- 3

I think it must be a common question, how much CURRENT can I produce from my generator that produces 12 - 15 volts? So far, I have read things about the size and cross section of the wire used in the coil, the number of turns, and the speed at which the field changes, etc. But invariably, when it comes down to it, it seems you have to know the load on the circuit, and the torque (of the turning windmill?), or the resistance of the coil, which you calculate if you already know the current...

I am trying to find out if there is a formula or calculator that will tell me, for a give set of magnets, a given set of coils with a given set of turns, using a given gauge of wire, turning a given RPM, my generator can produce a maximum sustainable current before things start melting, or slowing down.

I am not asking for a specific answer, just some guidance on what I should be looking for, because I keep finding the same articles and I am going around in circles. It seems to me if you want to size a generator, at some point the size of the wiring as it relates to the number of turns and the speed of the rotation have to come together to produce the current and therefore Watts. But I can't find the connection or I am not recognizing it when I see it.

Thank you.

PS, been out of high school for 30 years, not bad at trig, terrible at calculus, remember the very basics on electricity.