Battery Charger Capacitor

[TwoBlocked]

I guess I'll try the engineering sub-forum.

 

[drcampbell]

Lift that positive alligator clamp -- with or without removing the grounded battery terminal first -- and you'll be "directly" connected to the 120-volt hot leg through a diode and a 60Ω resistor.

 

[Joethemechanic]

Lift that positive alligator clamp -- with or without removing the grounded battery terminal first -- and you'll be "directly" connected to the 120-volt hot leg through a diode and a 60Ω resistor.

View attachment 2565702

I'm not recommending anyone doing it, or saying it is safe. I'm just saying it was done like that all the time back in the day. It's far from idiot proof

 

[drcampbell]

https://www.solidstatecontrolsinc.com/-/media/ameteksolidstatecontrols/documentation/white-papers/ferroresonant-transformers-white-paper.pdf

 

[TwoBlocked]

https://www.solidstatecontrolsinc.com/-/media/ameteksolidstatecontrols/documentation/white-papers/ferroresonant-transformers-white-paper.pdf

Thanks! That is the sort of information I was looking for! Might take a while for me to understand what is written, though.

 

[garbo]

That sounds safe!

We always used a cheap full wave rectifier cube to provide DC. Even used them with a timer that sent 480 volts thru the full wave rectifier for a very short time to stop a three phase motor.