Phase shedding based on phase efficiency determined by pulse width modulator switching of voltage regulator field effect transistors

A multiphase power supply, comprising:

• an input configured to receive a plurality of pulse width measurements, wherein the plurality of pulse width measurements includes a measured pulse width for each phase of a plurality of phases in the multiphase power supply;
• a comparison logic unit coupled with the input and configured to identify a least efficient phase of the plurality of phases based on performing a comparison of the plurality of pulse width measurements;
• and
• phase shedding logic coupled with the comparison logic unit and configured to decrease an amount of power supplied to a load by the identified least efficient phase.

A computing system, comprising:

• a plurality of power phases;
• a set of one or more pulse width sensors configured to generate a plurality of pulse width measurements by measuring a pulse width for each power phase of the plurality of power phases;
• and
• a voltage regulator coupled with the plurality of power phases and configured to:
• identify a least efficient phase of the plurality of power phases based on performing a comparison of the plurality of pulse width measurements, and
• decrease an amount of power supplied to a load by the identified least efficient phase.

A method of operating a multiphase power supply, comprising:

• identifying the extremums of the plurality of phases based on a comparison of a pulse width for each phase in a plurality of phases;
• and
• decreasing an amount of power supplied to a load by the least efficient phase of the extremums of the plurality of phases;
• or
• increasing an amount of power supplied to the load by the most efficient phase of the extremums of the plurality of phases.