I am making a robot for a project, and have a quick question about the power system for my robot. I have to power an AVR MCU (5V), 6 servos (also 5V), 4 dc motors (12V), and a camera (9V). I really want to use just one battery for the whole robot. I was thinking of using 4 voltage regulators (i.e.LM780*s) to provide the correct voltage for each sub-system from a LiPo battery (each in parallel with the battery). Will this work the way I need it to?
If so, what kind of things do I need to consider. For example, will the servos create a lot of noise on the MCU's power line, or would they be completely separate despite being connected to the same battery?
Essentially, I would like to know what the ideal and/or widely used method of powering various components with a single power source is.