Hey!
I'm extremely new to electrical engineering and trying to make some of my circuits a bit smoother with PCBs. My goal is to input 12-24VAC and output a potential free relay output. This is my second circuit that doesn't work, and I'm kind of running out of ideas.
So my first circuit used a bridge rectifier, a mechanical switch and a 12VDC relay. The switch switched between stepping down 24V to 12V, and just keeping 12V, depending on input. I quickly noticed that didn't work, as I measured the voltage out of the bridge rectifier circuit to be variable (like AC is). DC worked fine.
The second is the circuit I believe should've worked, but doesn't. The main difference is the regulator that steps 10-35VDC down to 5VDC for the new 5VDC relay, solving the switch+variable voltage problem. However the measurements of the regulator output, while powered by AC is much higher than 5V, closer to 20V actually, as well as my instrument measuring it as AC..
So my question - Is there an obvious problem with the circuit, or are any of the components wrong?
Thanks a lot for the help!
I'm extremely new to electrical engineering and trying to make some of my circuits a bit smoother with PCBs. My goal is to input 12-24VAC and output a potential free relay output. This is my second circuit that doesn't work, and I'm kind of running out of ideas.
So my first circuit used a bridge rectifier, a mechanical switch and a 12VDC relay. The switch switched between stepping down 24V to 12V, and just keeping 12V, depending on input. I quickly noticed that didn't work, as I measured the voltage out of the bridge rectifier circuit to be variable (like AC is). DC worked fine.
The second is the circuit I believe should've worked, but doesn't. The main difference is the regulator that steps 10-35VDC down to 5VDC for the new 5VDC relay, solving the switch+variable voltage problem. However the measurements of the regulator output, while powered by AC is much higher than 5V, closer to 20V actually, as well as my instrument measuring it as AC..
So my question - Is there an obvious problem with the circuit, or are any of the components wrong?
Thanks a lot for the help!