SLOPE COMPENSATION IN CURRENT MODE CONTROL OF PARALLEL BUCK CONVERTERS USING COUPLED INDUCTORS

摘要

A system (100) that includes a regulator circuit (101) is disclosed. The regulator circuit includes first (201a) and second (201b) phase units whose outputs are coupled to a power supply node (204) of a circuit block, via respective coupled inductors (211a, 211b). The first phase unit (201a) may initiate a charge cycle of the power supply node in response to assertion of a clock signal (208a) and generate a compensated current using currents measure (507, 508) through both inductors and the clock signal (208a). In response to a determination that the compensated current is greater than a demand current (210) generated using a voltage level of the power supply node and a reference voltage, the first phase unit may halt the charge cycle.