Hello all,
I need detect the zero crossings of a 120V ac signal and act on it.
So far I have a transformer that converts the 120V to 12V (500mA).
I have the signal going into a rectifier (4 4001 diodes in a diamond shape - I think it's called a full wave rectifier...
anyway... the output is full wave recified... is there any circuitry anyone can suggest to turn this into a nice square wave where it goes high/low on a zero cross?
will a schmitt or something? or an H11L1?