Circuit Design -- Comparators to light an LED 1. The problem statement, all variables and given/known data I need help designing a circuit that takes an input voltage and then lights a single LED if and only if V in is greater than or equal to 2V and less than or equal to 1 V. It can only use 1 Power Supply unit, +/-5V Circuit must not draw more than 50mA 2. Relevant equations voltage divider = vtotal*R1/(R1+R2) 3. The attempt at a solution I know that there definitely needs to be a voltage divider of some sort (potentiometer?) range the voltage between 0V and 5V, and I probably will need 2 op amps. But I don't know how to design the circuit such that the LED will only light up if the voltage is within the given range. Help appreciated!