Topic: DC circuit design Q

[Krod]

Ok guys,  I'm not the best when it comes to circuit design, so I need some help with this setup.  Heres the situation....

The circuit is going to be monitoring an input voltage, and increasing an output voltage if the input value drops below a value.
I have an input voltage (lets say between 1 & 5 volts) coming into the circuit.  When that voltage drops below a value (say 3v or lower) I need the circuit to increase the output voltage until the input voltage reads the desired amount (say 3v).  The desired voltage needs to be adjustable via a Pot.

Simple enough I'm sure, but as I said...circuit design is NOT my thing.
So how do I wire this up?

[mad mike]

what are you working on that you have such a low voltage? i am a maintance man in ambridge pa kinda close to you and if i know what you are doing i might be able to help you out

[Krod]

the voltages were just for example.  not for calculation.  I've got the design I need to do what I want it to do.  Unfortunately, I found a product that does exactally what I was planning on using the circuit for, and its easy to hook up...so i've passed on anymore design on my end    


thanks