Patent ID: 8067927

Claim:
A control circuit for a multi-phase converter, the multi-phase converter comprising a plurality of converter circuits, the control circuit comprising: an analog front-end circuit for receiving and processing an output voltage and a current of one of the plurality of converter circuits and an average output current; a digital circuit for producing an output voltage reference for setting a desired output voltage of the one of the plurality of converter circuits, said digital circuit configured to modify said output voltage reference value according to a signal from said analog front-end circuit; and an error circuit for comparing the output voltage reference and a parameter related to said output voltage and current for generating control signals for controlling the one of the plurality of converter circuits, said error circuit including no more than one Analog to Digital Converter circuit, further comprising a digital PWM generation circuit controlled by said Analog to Digital converter circuit for generating digital control signals for controlling the one of the plurality of converter circuits.