Voltage Regulator Circuit Diagram Wanted!

My mother-in -law is available. Now all you need to do is find a Variac and a voltmeter. But seriously folks; this sounds like a good application for a ferro-resonant type AC regulator. They are simple and reliable. Sola makes a line of these. You would have to use a 1:2 stepup transformer at the output of the regulator. I'm not sure that Sola makes a 50 Hz model. Search for "ferro-resonant regulator" if you want to design your own. Basically they are transormers with an auxilliary winding that resonates at the line frequency. The resonant winding causes the core to saturate, thus regulating the output. Commercial models have harmonic correction circuits to correct for the distortion produced by the core saturation. ~ One caveat: This type regulator is not very efficient. Regards, Jon

No, sorry.

Good Luck! Rich

"goldenarc"

Is that OK ?

.......... Phil

In article , Phil Allison wrote: [....]

In China they use an automated version of this idea a lot. Id doesn't involve an wiper contact. It is made more like a wound rotor induction motor. When the coils turn to align, the voltage is stepped up. When they turn to 90 degrees, it is 1:1.

You may be able to find a drawing for one with google.

BTW: it has to have a set of brakes (that work). Without them, when you switch off the power, the thing swings around to full boost. When the power returns, it takes a while to readjust and burns out the lights so you can't see the thing to fix it until the morning.