Systems and methods for self-calibration of a voltage regulator

A method comprising:

• causing a first test current to be delivered for a period of time from a phase of a voltage regulator to a load coupled to the voltage regulator, the phase configured to deliver electrical energy to the load;
• measuring a first measured output current associated with the first test current;
• causing a second test current to be delivered from the phase to the load for the period of time, the second test current differing from the first test current by a known offset;
• measuring a second measured output current associated with the second test current;
• and
• calculating the respective gain and the respective offset of the phase based on the first measured output current, the second measured output current, the period of time, and the known offset.

A power system comprising:

• a voltage regulator coupled to a load, the voltage regulator comprising one or more voltage regulator phases, each of the one or more voltage regulator phases configured to deliver electrical energy to the load;
• and
• a controller coupled to the voltage regulator and configured to perform a calibration operation for each of the one or more voltage regulator phases in order to calculate a respective gain and a respective offset for each particular phase of the one or more voltage regulator phases, wherein the respective gain and the respective offset define a linear relationship between a measured output current of the particular phase and an actual output current of the particular phase, and further wherein calculating the respective gain and the respective offset for each particular phase of the one or more voltage regulator phases comprises:
• causing a first test current to be delivered from the particular phase to the load for a period of time;
• measuring a first measured output current associated with the first test current;
• causing a second test current to be delivered from the particular phase to the load for the period of time, the second test current differing from the first test current by a known offset;
• measuring a second measured output current associated with the second test current;
• and
• calculating the respective gain and the respective offset of the particular phase based on the first measured output current, the second measured output current, the period of time, and the known offset.