So I was thinking of making a home security system with a couple of PUT's to make an oscillating circuit and have two 2n222 stacked to amp the signal from the two PUT's and have a Relay/2n222 set-up to keep the alarm circuit running when someone intrudes, and i'll also have a set-up that'll allow me to check to see if all the doors are closed and that the system will work when needed. This system requires 12v and less then 1A.
My questions:
It says that most people use a 12v battery and charger to run it, I was just wondering why. For emergencies I'm guessing, when the power goes out. And would it be ok to just use a AC-DC adapter? I'm guessing not, since it needs a uninterruptable charge from the source. But im not 100% on this one.
And secondly, if I do get a battery. How would I set it up. I know the battery will hook-up to the circuit. But for the charger....Do I just run the battery for a couple days then unplug and charge and repeat???
My questions:
It says that most people use a 12v battery and charger to run it, I was just wondering why. For emergencies I'm guessing, when the power goes out. And would it be ok to just use a AC-DC adapter? I'm guessing not, since it needs a uninterruptable charge from the source. But im not 100% on this one.
And secondly, if I do get a battery. How would I set it up. I know the battery will hook-up to the circuit. But for the charger....Do I just run the battery for a couple days then unplug and charge and repeat???