Hi all,
I've been searching the net for a while for ideas on how to do this. I'm looking to control my house number illumination via a phototransistor so that it isn't on all the time (only when dark). The lights are connected to the doorbell circuit, so it's 16 volts, 10 watts AC.
I found a basic phototransistor / comparator circuit, but I don't know if it would work with AC:
http://home.cogeco.ca/~rpaisley4/PhotoDetectors.html
Anyone ever done this before and can share a schematic?
I've been searching the net for a while for ideas on how to do this. I'm looking to control my house number illumination via a phototransistor so that it isn't on all the time (only when dark). The lights are connected to the doorbell circuit, so it's 16 volts, 10 watts AC.
I found a basic phototransistor / comparator circuit, but I don't know if it would work with AC:
http://home.cogeco.ca/~rpaisley4/PhotoDetectors.html
Anyone ever done this before and can share a schematic?