Patents by Inventor Alok K. Lohia

Alok K. Lohia 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).

  • Publication number: 20240138051
    Abstract: A system includes a point of load (POL) module. The POL module includes a point of load printed circuit board. At least one inductor is mounted to the point of load printed circuit board. The POL module includes a power network. The POL module is configured to be surface mounted. The system further includes a heat sink including a first leg configured to be surface mounted adjacent the point of load printed circuit board, a second leg configured to be surface mounted adjacent the point of load printed circuit board opposite the first leg, and a cap portion connecting the first leg to the second leg. The heat sink is sized and shaped to encompass the POL module and configured to connect to the power network. The power network may be a PGND network.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventors: John Andrew Trelford, Alok K. Lohia, Arturo Silva
  • Patent number: 11910517
    Abstract: A system including a point of load converter module (POL). The POL module includes a point of load printed circuit board. At least one inductor is mounted to the point of load printed circuit board. The POL module includes a power network. The point of load converter module is configured to be surface mounted. The system includes a heat sink including a first leg configured to be surface mounted adjacent the point of load printed circuit board, a second leg configured to be surface mounted adjacent the point of load printed circuit board opposite the first leg, and a cap portion connecting the first leg to the second leg. The heat sink is sized and shaped to encompass the POL and configured to connect to the power network. The power network may be a PGND network.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: February 20, 2024
    Assignee: AcLeap Power Inc.
    Inventors: John Andrew Trelford, Alok K. Lohia, Arturo Silva
  • Patent number: 11770900
    Abstract: A printed circuit board (PCB) assembly is provided. The PCB assembly comprises a printed wiring board (PWB) and one or more electrical components mounted thereon. The PWB comprises a plurality of layers including conductive layers and insulative layers, where one or more of the insulative layers is a prepreg layer that is halogen-free; one or more slotted portions on a surface of the PWB, which are indented into the PWB; and one or more pads disposed on the surface of the PWB, which are paired with the one or more slotted portions. Each of the one or more electrical components is mounted on the surface of the PWB through a pair of a slotted portion and a pad.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: September 26, 2023
    Assignee: ABB Schweiz AG
    Inventors: Alok K. Lohia, Arturo Silva, Robert J. Catalano, Robert J. Roessler
  • Publication number: 20230260690
    Abstract: An inductor is disposed above and mounted on a printed wire board. The inductor includes a winding and a core. The winding includes first and second terminations that are electrically connected to the printed wire board at different locations. The core includes: a first section including magnetic material with a channel along an inner surface, to receive the winding, and ending at or above first and second bottom corners of the inner surface; a second section that is a mirror image of the first section including an inner surface that faces the inner surface of the first section; and a distributed gap that uniformly separates the first section from the second section except where the winding passes along the mirror-image channels. The winding lies along the distributed gap in the mirror-image channels, and the winding spatially divides the core into an upper and lower portions of equal volume.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 17, 2023
    Applicant: ABB Schweiz AG
    Inventors: Arturo Silva, Alok K. Lohia, Robert J. Catalano
  • Publication number: 20230189427
    Abstract: A system including a point of load converter module (POL). The POL module includes a point of load printed circuit board. At least one inductor is mounted to the point of load printed circuit board. The POL module includes a power network. The point of load converter module is configured to be surface mounted. The system includes a heat sink including a first leg configured to be surface mounted adjacent the point of load printed circuit board, a second leg configured to be surface mounted adjacent the point of load printed circuit board opposite the first leg, and a cap portion connecting the first leg to the second leg. The heat sink is sized and shaped to encompass the POL and configured to connect to the power network. The power network may be a PGND network.
    Type: Application
    Filed: December 14, 2021
    Publication date: June 15, 2023
    Applicant: ABB Schweiz AG
    Inventors: John Andrew Trelford, Alok K. Lohia, Arturo Silva
  • Publication number: 20230189443
    Abstract: A printed circuit board (PCB) assembly is provided. The PCB assembly comprises a printed wiring board (PWB) and one or more electrical components mounted thereon. The PWB comprises a plurality of layers including conductive layers and insulative layers, where one or more of the insulative layers is a prepreg layer that is halogen-free; one or more slotted portions on a surface of the PWB, which are indented into the PWB; and one or more pads disposed on the surface of the PWB, which are paired with the one or more slotted portions. Each of the one or more electrical components is mounted on the surface of the PWB through a pair of a slotted portion and a pad.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 15, 2023
    Applicant: ABB Schweiz AG
    Inventors: Alok K. Lohia, Arturo Silva, Robert J. Catalano, Robert J. Roessler
  • Publication number: 20090072373
    Abstract: Packaged integrated circuits and methods to form a thermal stacked integrated circuit package are disclosed. A disclosed method comprises attaching a first integrated circuit to at least one of a plurality of pads of a substrate, mounting a second integrated circuit above the first integrated circuit, placing a heat conductor in thermal contact with a top surface of the second integrated circuit, and encapsulating the first and second integrated circuits while leaving a surface of the heat conductor exposed to dissipate heat.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 19, 2009
    Inventors: Reynaldo Corpuz Javier, Jayprakash V. Chipalkatti, Alok K. Lohia
  • Patent number: 7477517
    Abstract: Disclosed is an integrated active heat spreader and exchanger. The heat spreader cum exchanger includes a housing with a conductive heat spreader therein. A spreader plate of the heat spreader is in thermal contact with a microprocessor chip to be cooled and a plurality of spreader fins extending from the spreader plate. A membrane connects the heat spreader and the housing, sealing an interface between the heat spreader and the housing. A top plate, including a plurality of top plate fins, is disposed in the housing. A pump is located between the top plate fins and the spreader fins and urges fluid across the spreader fins and conducts heat from the spreader fins. The top plate fins conduct heat from the fluid and into a heat sink in thermal contact with the top plate. A heat sink plate conducts heat into heat sink fins where the heat is dissipated.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: January 13, 2009
    Assignee: International Business Machines Corporation
    Inventors: Vijayeshwar D. Khanna, Alok K. Lohia, Gerard McVicker, Sri M. Sri-Jayantha
  • Publication number: 20080180914
    Abstract: Disclosed is an integrated active heat spreader and exchanger. The heat spreader cum exchanger includes a housing with a conductive heat spreader therein. A spreader plate of the heat spreader is in thermal contact with a microprocessor chip to be cooled and a plurality of spreader fins extending from the spreader plate. A membrane connects the heat spreader and the housing, sealing an interface between the heat spreader and the housing. A top plate, including a plurality of top plate fins, is disposed in the housing. A pump is located between the top plate fins and the spreader fins and urges fluid across the spreader fins and conducts heat from the spreader fins. The top plate fins conduct heat from the fluid and into a heat sink in thermal contact with the top plate. A heat sink plate conducts heat into heat sink fins where the heat is dissipated.
    Type: Application
    Filed: January 29, 2007
    Publication date: July 31, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Vijayeshwar D. Khanna, Alok K. Lohia, Gerard McVicker, Sri M. Sri-Jayantha