MULTI-PHASE VOLTAGE REGULATOR CIRCUIT AND CURRENT BALANCING CIRCUIT

Abstract: a multi-phase voltage regulator circuit applied in a multi-phase power converter is provided. the multi-phase voltage regulator circuit comprises multiple comparison circuits. the comparison circuits are coupled to a power output stage circuit and configured to generate multiple control signals the power output stage circuit generates multiple output currents according to the control signals. each of the comparison circuits comprises a comparator and a correction conversion circuit. the comparator is configured to receive a compensation signal and a reference signal, and receive a correction signal through a first correction terminal and to adjust a duty cycle of a corresponding one of the control signals according to the correction signal. the correction conversion circuit is configured to generate a correction signal according to an error current. the error current represents a difference between a current threshold value and a corresponding output current for the corresponding phase.

Inventor(s): Yueh Lung KUO, Chia-Hung TSEN

CPC Classification: H02M3/1584 (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers ; dynamo-electric converters ; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters ))

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