Hi, I've got a project that I shelved a couple of years ago, but now I've got the time and energy to bring back to life. If any of you could suggest a circuit design, I would greatly appreciate it!
The only problem is that I haven't designed a semiconductor circuit since high school, so I've got no idea what chips I need to get started. I am still handy with a soldering iron, though!
My car has a 4-pole trailer wiring circuit-- left, right, tail, ground. It's designed so that the left and right turn signals are red. I prefer to have amber turn signals, and red for brakes only, so the goal of my project is to take the 4-pole wiring from the car, and run it through a circuit to get separate outputs for left, right, brake, and tail.
The tail part's easy, so I'm not worrying about the details there. The hard part is getting the left and right to give left, right, and brake as outputs.
I need 12v outputs (<200mA) according to the following logic table:
L=left, R=right, B=brake. i=input, o=output.
Naturally, the 12V power supply for this circuit will have to come from the L/R/T inputs.
For the L and R circuits, I think I need an XOR gate to compare the left and right inputs, and then two AND gates to compare the XOR's output with each of the L and R inputs.
For the B circuit, I think I just need an AND gate to make sure both the L and R inputs are on.
Thanks for any help you can provide!
The only problem is that I haven't designed a semiconductor circuit since high school, so I've got no idea what chips I need to get started. I am still handy with a soldering iron, though!
My car has a 4-pole trailer wiring circuit-- left, right, tail, ground. It's designed so that the left and right turn signals are red. I prefer to have amber turn signals, and red for brakes only, so the goal of my project is to take the 4-pole wiring from the car, and run it through a circuit to get separate outputs for left, right, brake, and tail.
The tail part's easy, so I'm not worrying about the details there. The hard part is getting the left and right to give left, right, and brake as outputs.
I need 12v outputs (<200mA) according to the following logic table:
L=left, R=right, B=brake. i=input, o=output.
Rich (BB code):
Li Ri => Lo Ro Bo
L. 1 0 => 1 0 0
R. 0 1 => 0 1 0
B. 1 1 => 0 0 1
For the L and R circuits, I think I need an XOR gate to compare the left and right inputs, and then two AND gates to compare the XOR's output with each of the L and R inputs.
For the B circuit, I think I just need an AND gate to make sure both the L and R inputs are on.
Thanks for any help you can provide!