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How to make Voltage regulators Answered

I would like to know how to make a voltage regulator for an old generator. The regulator has stopped working and is hard to replace. I need an out´put of 120 volts with 15000 watts and ofcourse the 50-60 hertz. Thanx for your time


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Jack A Lopez
Jack A Lopez

2 years ago

I am not sure if there is a one-size-fits-all control solution for every, "old generator" out there.

I can point to one instructable here, I have found so far, of someone attempting (and failing) to build something like this, here:


It looks, to me, like the author of this project was thinking of this as a kind of single input, single output (SISO) control problem, with the single input being throttle position, and the single output being engine speed (measured in RPM).

I do not know what inputs your generator has. I am guessing it is just one; i.e. throttle position. On some kinds of generator there is also input for magnet current too; i.e. a way to make the magnet stronger or weaker.

As far as outputs to feed back from, well, I can think of around 3 signals that could be measured: specifically engine speed, output voltage, and output current.

It might be the case that the usual trick is to just try to achieve constant speed, or just constant RMS voltage.

Actually I am not sure what the usual trick is, because I have never built one of these before.