Multi-phase current balancing circuit and method

A balancing circuit comprising:

• a plurality of sampling circuits producing a plurality of measurement signals corresponding to a plurality of phases of a multi-phase circuit, respectively, each sample circuit configured to generate the corresponding measurement signal according to a measured current of the corresponding phase and a clock phase used to generate the measured current from among a plurality of clock phases of the multi-phase circuit;
• and
• a plurality of comparator circuits producing a plurality of indicator signals respectively corresponding to the plurality of phases, each comparator circuit configured to produce the corresponding indicator signal according to a comparison of the measurement signal for the corresponding phase to an average of the measurement signal for other phases of the plurality of phases,
• wherein the measured current of each phase corresponds to a current of an output of that phase, and
• wherein each phase of the plurality of phases is configured to adjust the current of the output of that phase in response to the corresponding indicator signal.