Hello, I have a question regarding my control circuit for a solenoid valve. Note, i'm still at the beginning of my design stage and nothing is final yet, but its going to be a 12vdc solenoid valve drawing around 300-400mA. I've included a rough schematic of what I have so far below.
My question is; The valve has to be controlled by the output of the PIC (the pin connected to the darlington pair), but i'm not getting enough voltage to operate the 12v solenoid. What can I do to obtain more voltage?
My question is; The valve has to be controlled by the output of the PIC (the pin connected to the darlington pair), but i'm not getting enough voltage to operate the 12v solenoid. What can I do to obtain more voltage?