Patent ID: 8405368

Claim:
A phase current sharing network for a current mode multiphase switching regulator, wherein the multiphase switching regulator includes a plurality of switching networks each for developing a corresponding one of a plurality of phase currents through an inductance of each of a plurality of switching phase networks controlled by a corresponding one of a plurality of pulse control signals for converting an input voltage to an output voltage, and wherein the multiphase switching regulator develops the plurality of pulse control signals based on a plurality of current control values and at least one trigger value, said phase current sharing network comprising: a plurality of conversion networks, each configured to provide a corresponding one of a plurality of phase current values based on a corresponding one of the plurality of phase currents; and a phase current combining network which develops an average phase current value based on the plurality of phase current values and which subtracts said average phase current value from each of said plurality of phase current values to provide the plurality of current control values used to control the plurality of switching networks.