Renesas Electronics America Inc.

Kiran Gonsalves

Robert Thomas Grisamore

Travis Guthrie

Narendra Kayathi

David L Beck

Aaron Shreeve

Timothy William Nutt

Nicholas John Havens

Methods and systems for performing current sense compensation for one or more power stages in a multiphase voltage regulator are described. A controller can be connected to a plurality of power stages through a communication interface. The controller can generate a data packet including a command to obtain temperature information and an address that identifies a specific power stage among the plurality of power stages. The controller can send the data packet to the plurality of power stages using the communication interface. The controller can receive temperature information of the specific power stage from the specific power stage through the communication interface. The controller can compensate a sensed current of the specific power stage based on the received temperature information of the specific power stage.

Remote current sense compensation in multiphase voltage regulators

A system including a controller and a plurality of power stages is described. The system can include a communication interface, the plurality of power stages, and a controller connected to the plurality of power stages through the communication interface. The controller can generate a data packet including a command encoding a task and an address identifying at least one power stage among the plurality of power stages. The controller can send the data packet to the plurality of power stages through the communication interface. Each power stage among the plurality of power stages can receive the data packet through the communication interface, compare the address in the data packet with an address assigned to the power stage, determine whether to perform the task based on a result of the comparison between the address in the data packet with an address assigned to the power stage.

Digital communications bus for voltage regulator control and status read of multiple power stages

Methods and systems for operating a voltage regulator are described. An apparatus may receive a feedback signal from a power stage. The feedback signal may be one of a sensed signal measured from an output of the power stage and a calibration signal representing a fixed voltage. The apparatus may convert the feedback signal into a correction signal. The apparatus may further adjust a synthetic current using the correction signal, the synthetic current being associated with the power stage.

System level offset calibration of multiphase voltage regulator

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Austin, TX, United States of America

Kiran Gonsalves