How to add 2nd battery to circuit or increase voltage Answered
I have a Normally Closed NPN inductive proximity sensor which operates at 10V. I use it to control a load (light bulb), which is normally on, and goes off when the proximity sensor detects metal. The problem is that I need to work with portable batteries, or something like an acid battery, and ideally not exceed 12V for safety reasons. Since the sensor needs 10V to operate, this only leaves me with 2V for the light bulb. I need to increase the voltage to the light bulb so that I can use a decent light source. Is there a way of adding a 2nd battery to the circuit so that the bulb has its own power source, yet that too is controlled by the sensor (otherwise the bulb would just stay on continuously). Any other solution would also be appreciated. Current circuit diagram attached. Thank you.