Hey guys,
I posted a thread earlier about how CTs work and coupling and power transfer. I now have a better grasp of CTs, and just wanted to explore making a power supply/regulator off of the secondaries of a CT that will be hanging off a power line.
If I connect a diode bridge, capacitor for smoothing and LM317 to the secondary, assuming that the primary has 100A AC steady on it, and secondary has 5A, what will happen?
I have a feeling that the capacitor will just keep charging to a higher and higher voltage (like opening the secondary) and bad stuff happens. Or does the LM317 provide a suitable connection to a common?
If I could short out the secondary upon detecting a High voltage on the capacitor (before the rectifiers) and then let current back into the rectifier on a low voltage, will that work? That way, the capacitor discharges to the regulator when it's too high of voltage, then recharges again after.
Thanks for any input
I posted a thread earlier about how CTs work and coupling and power transfer. I now have a better grasp of CTs, and just wanted to explore making a power supply/regulator off of the secondaries of a CT that will be hanging off a power line.
If I connect a diode bridge, capacitor for smoothing and LM317 to the secondary, assuming that the primary has 100A AC steady on it, and secondary has 5A, what will happen?
I have a feeling that the capacitor will just keep charging to a higher and higher voltage (like opening the secondary) and bad stuff happens. Or does the LM317 provide a suitable connection to a common?
If I could short out the secondary upon detecting a High voltage on the capacitor (before the rectifiers) and then let current back into the rectifier on a low voltage, will that work? That way, the capacitor discharges to the regulator when it's too high of voltage, then recharges again after.
Thanks for any input