Tracking power supplies and associated systems and methods

A system, comprising:

• a plurality of loads;
• and
• a tracking power supply, including:
• a power conversion subsystem configured to generate N power rails, N being an integer greater than one,
• a respective tracking subsystem for each load, each tracking subsystem being configured to selectively connect its respective load to one or more of the N power rails at least partially based on a tracking signal associated with its respective load;
• and
• a controller configured to:
• generate a voltage adjustment signal;
• and
• adjust a voltage value of at least one of the N power rails by feeding the generated voltage adjustment signal to the power conversion subsystem.

A method for operating a tracking power supply, comprising:

• receiving a tracking signal associated with a load powered by the tracking power supply;
• controlling operation of a switching network according to the tracking signal, the switching network being electrically coupled between each of N power rails and a common tracking power rail powering the load, N being an integer greater than one, such that a voltage at the common tracking power rail is one of two or more values, as determined at least partially based on the tracking signal;
• generating a voltage adjustment signal;
• and
• adjusting a voltage value of at least one of the N power rails by feeding the generated voltage adjustment signal to the power conversion subsystem.