Patent ID: 8629668

Claim:
A multi-phase switching power converter, wherein each phase is comprising: a feedback network; a main inductor; an amplifier; wherein an inductor current flows in said main inductor; wherein said feedback network generates a synthetic ripple signal; wherein said inductor current in each phase is sensed; wherein a voltage signal representative of said inductor current is generated; wherein said voltage signal representative of said inductor current is fed to said amplifier; wherein an output signal of said amplifier, representative of a difference between the inductor currents in two phases of said multi-phase switching power converter, is converted into a current signal; wherein said current signal is coupled to said feedback network, and whereby said current signal modulates a duty cycle of the corresponding phase of said multi-phase switching power converter to balance said inductor current with the inductor currents in the other phases of said multi-phase switching power converter.