Hello. I'm a mechanical engineer with a grasp on basic electrical concepts but need some guidance in what I feel is a simple circuit problem.
I have a project in which I have a 5Vdc signal wired into a 5 kohm potentiometer such that I can vary its output from 0 to 5Vdc. What is the simplest way to add basic passive components or IC's (op-amp) into the circuit such that i can add a minimum and maximum limit to my controlled output voltage. In other words, I want the minimum of the output of the pot's signal to be no less than 1.75V and no more than 2.10V (can be other ranges as well), such that you couldn't go outside those boundaries by over-turning the multi-turn pot. But you could achieve every discreet analog voltage in between 1.75 and 2.10 with the turning of the potentiometer.
The circuit ultimately feeds into an automotive style ECU, so there is very little current on it.
I really do not want to use a micro-controller for this design, but am thinking this can be achieved by op-amps, zener diodes, resistors, or something of the like.
Any guidance is appreciated, or if there are similar existing threads in this forum that would be helpful.
Thanks,
Mike
I have a project in which I have a 5Vdc signal wired into a 5 kohm potentiometer such that I can vary its output from 0 to 5Vdc. What is the simplest way to add basic passive components or IC's (op-amp) into the circuit such that i can add a minimum and maximum limit to my controlled output voltage. In other words, I want the minimum of the output of the pot's signal to be no less than 1.75V and no more than 2.10V (can be other ranges as well), such that you couldn't go outside those boundaries by over-turning the multi-turn pot. But you could achieve every discreet analog voltage in between 1.75 and 2.10 with the turning of the potentiometer.
The circuit ultimately feeds into an automotive style ECU, so there is very little current on it.
I really do not want to use a micro-controller for this design, but am thinking this can be achieved by op-amps, zener diodes, resistors, or something of the like.
Any guidance is appreciated, or if there are similar existing threads in this forum that would be helpful.
Thanks,
Mike