Earlier this year I interviewed at a robotics company and one of their questions was about my experience in power management control. From the sounds of it, they mean some kind of programming and control handling power through the system. I've heard of power management as a concept of dividing and conditioning the different voltages a complex robotics system requires, but having an active system that uses a controller is completely new to me, both in hardware and software. Is this a real process and what is involved?