Hi!
I have a circuit that normally runs from a mains power supply (with a resistor, rectifier and zener) that I want to control using a small battery powered circuit.
But the -ve side of the mains circuit is, effectively neutral(?) and I don't really want the negative side of the battery circuit to become neutral
Are there any isolator circuits I can make from common (all garden) components (rather than buy an opto isolator)?
Cheers
I have a circuit that normally runs from a mains power supply (with a resistor, rectifier and zener) that I want to control using a small battery powered circuit.
But the -ve side of the mains circuit is, effectively neutral(?) and I don't really want the negative side of the battery circuit to become neutral
Are there any isolator circuits I can make from common (all garden) components (rather than buy an opto isolator)?
Cheers