Patents by Inventor Chethan DEVARAJ

Chethan DEVARAJ has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12704895
    Abstract: An apparatus includes multiple core devices, each core device configured to operate at multiple voltage levels. The apparatus also includes a power management integrated circuit (PMIC) comprising multiple power supplies, each power supply corresponding to one of the voltage levels. A first of the power supplies corresponds to a first voltage level selectively coupled to a first of the core devices configured to operate at the first voltage level. A second power supply of the power supplies corresponds to a second voltage level selectively coupled to the first of the core devices configured to operate at the second voltage level.
    Type: Grant
    Filed: December 19, 2023
    Date of Patent: August 11, 2026
    Assignee: QUALCOMM Incorporated
    Inventors: Subbarao Lanka, Chethan Devaraj, Shruti Hanumanthaiah
  • Publication number: 20260171914
    Abstract: In a power supply circuit, such as a switched-mode power supply circuit, the rate at which a capacitor is charged during a charging mode depends on inductance of the power supply circuit, which may be selected for efficiency to support a particular power consumption rate. An exemplary power supply circuit includes a power management circuit to control dynamic selection of a first operation mode employing a first inductor having a first inductance for power efficiency at a first power supply rate and a second operation mode employing a second inductor for power efficiency at a second power supply rate. In some examples, the power management circuit couples the second inductor in parallel with the first inductor to provide a second inductance in the second operation mode.
    Type: Application
    Filed: December 9, 2024
    Publication date: June 18, 2026
    Inventors: Chethan Devaraj, Subbarao Lanka, Shruti Hanumanthaiah
  • Publication number: 20250390124
    Abstract: Certain aspects of the present disclosure are directed towards methods and apparatus for power generation. An example method generally includes: determining at least one multiplexer configuration of one or more multiplexers to direct current from at least one of a plurality of power supply phase circuits to at least one of a plurality of voltage rails, wherein a first operating region of each of the plurality of power supply phase circuits is identified based on a power efficiency of each of the plurality of power supply phase circuits, and wherein the at least one multiplexer configuration is determined based on the first operating region; and controlling the one or more multiplexers based on the at least one multiplexer configuration.
    Type: Application
    Filed: June 25, 2024
    Publication date: December 25, 2025
    Inventors: Subbarao LANKA, Shruti HANUMANTHAIAH, Chethan DEVARAJ
  • Patent number: 12366904
    Abstract: An apparatus has a power management integrated circuit (PMIC) comprising a number of power supplies. The apparatus also has a power multiplexor coupled to each of the power supplies. The apparatus still further has a number of core devices. At least one of the core devices is coupled to the power multiplexor to receive power from at least one of the power supplies. The apparatus has a machine learning model configured to control selection of the power supply (ies) based on current utilization of each of the power supplies, and an amount of current consumed by the core device(s).
    Type: Grant
    Filed: August 1, 2023
    Date of Patent: July 22, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Chethan Devaraj, Subbarao Lanka
  • Publication number: 20250199601
    Abstract: An apparatus includes multiple core devices, each core device configured to operate at multiple voltage levels. The apparatus also includes a power management integrated circuit (PMIC) comprising multiple power supplies, each power supply corresponding to one of the voltage levels. A first of the power supplies corresponds to a first voltage level selectively coupled to a first of the core devices configured to operate at the first voltage level. A second power supply of the power supplies corresponds to a second voltage level selectively coupled to the first of the core devices configured to operate at the second voltage level.
    Type: Application
    Filed: December 19, 2023
    Publication date: June 19, 2025
    Inventors: Subbarao LANKA, Chethan DEVARAJ, Shruti HANUMANTHAIAH
  • Publication number: 20250044848
    Abstract: An apparatus has a power management integrated circuit (PMIC) comprising a number of power supplies. The apparatus also has a power multiplexor coupled to each of the power supplies. The apparatus still further has a number of core devices. At least one of the core devices is coupled to the power multiplexor to receive power from at least one of the power supplies. The apparatus has a machine learning model configured to control selection of the power supply (ies) based on current utilization of each of the power supplies, and an amount of current consumed by the core device(s).
    Type: Application
    Filed: August 1, 2023
    Publication date: February 6, 2025
    Inventors: Chethan DEVARAJ, Subbarao LANKA