Patents by Inventor Carlos Azevedo

Carlos Azevedo 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: 11625055
    Abstract: A linear regulator which has a pass device coupled between an input voltage level and an output node, a voltage divider circuit for generating a feedback voltage that depends on an output voltage at the output node, and an operational amplifier for controlling the pass device, the operational amplifier receiving the feedback voltage and a reference voltage at its inputs is presented. The operational amplifier has: an input stage that receives the feedback voltage and the reference voltage at its inputs, an amplifier stage that receives an output of the input stage at its input, and a current injection circuit for sourcing current into an intermediate node between the input stage and the amplifier stage, or sinking a current from the intermediate node. The disclosure further relates to a corresponding method of operating a linear regulator.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 11, 2023
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Carlos Azevedo, Ambreesh Bhattad, Frank Kronmueller, Mahir Uka, Benedikt Wolf
  • Publication number: 20210366866
    Abstract: The present inventive concept relates to an unfoldable layered connection comprising: a substrate; a node of connector material arranged to contact the substrate; a first extension comprising a core of connector material arranged to be in contact with the node, and flexible material arranged to at least partially enclose the core; a second extension comprising a core of connector material arranged to be in contact with the first extension via a second node of connector material, wherein the first extension is configured to be hingedly connected to the node, thereby allowing unfolding of the first extension along a z-axis being perpendicular to an extension plane of a major surface of the substrate; and wherein the second extension is hingedly connected to the second node, thereby allowing unfolding of the second extension along the z-axis, and wherein the second node is moveable along the z-axis via unfolding of the first extension.
    Type: Application
    Filed: June 28, 2019
    Publication date: November 25, 2021
    Applicant: INL - International Iberian Nanotechnology Laboratory
    Inventors: Rosana Maria ALVES DIAS, Carlos Azevedo Gaspar JOÂO
  • Publication number: 20210272922
    Abstract: The present inventive concept relates to a foldable layered connection comprising: a substrate having a first major surface and an opposing second major surface; a node of connector material arranged to contact the substrate via the first major surface; a released extension comprising a core of connector material arranged to be in communicative contact with the node of connector material, and flexible material arranged to at least partially enclose the core; wherein the released extension is configured to be hingedly connected to the node and to fold towards the second major surface, and wherein a portion of the core of connector material is exposed, forming a contact of connector material, wherein the contact is electrically isolated from the second major surface and arranged such that it is facing away from the second major surface when the released extension is folded towards the second major surface.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 2, 2021
    Applicants: INL - International Iberian Nanotechnology Laboratory, INESC MN
    Inventors: Rosana Maria ALVES DIAS, Carlos Azevedo Gaspar JOÂO, Ricardo FERREIRA, Paulo Jorge PEIXEIRO DE FREITAS, Susana Isabel PINHEIRO CARDOSO DE FREITAS, Fernando Filipe RODRIGUES FRANCO
  • Patent number: 11099590
    Abstract: A linear regulator with indirect leakage compensation is presented. The regulator has a pass device coupled between an input voltage and an output node, a feedback loop for controlling the pass device based on a reference voltage and a feedback voltage that depends on an output voltage, an off-state device that is kept in the off-state, and a leakage compensation circuit for sinking a leakage compensation current from the output node, in dependence on a leakage current of the off-state device. The off-state device is coupled between the leakage compensation circuit and an intermediate voltage level of the linear regulator. The intermediate voltage level is a voltage level between the input voltage level and ground, with a magnitude of the intermediate voltage level being smaller than a magnitude of the input voltage level. A corresponding method of operating a linear regulator with leakage compensation is presented.
    Type: Grant
    Filed: March 21, 2020
    Date of Patent: August 24, 2021
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Carlos Azevedo, Ambreesh Bhattad
  • Publication number: 20200310478
    Abstract: A linear regulator with indirect leakage compensation is presented. The regulator has a pass device coupled between an input voltage and an output node, a feedback loop for controlling the pass device based on a reference voltage and a feedback voltage that depends on an output voltage, an off-state device that is kept in the off-state, and a leakage compensation circuit for sinking a leakage compensation current from the output node, in dependence on a leakage current of the off-state device. The off-state device is coupled between the leakage compensation circuit and an intermediate voltage level of the linear regulator. The intermediate voltage level is a voltage level between the input voltage level and ground, with a magnitude of the intermediate voltage level being smaller than a magnitude of the input voltage level. A corresponding method of operating a linear regulator with leakage compensation is presented.
    Type: Application
    Filed: March 21, 2020
    Publication date: October 1, 2020
    Inventors: Carlos Azevedo, Ambreesh Bhattad
  • Publication number: 20200278709
    Abstract: A linear regulator which has a pass device coupled between an input voltage level and an output node, a voltage divider circuit for generating a feedback voltage that depends on an output voltage at the output node, and an operational amplifier for controlling the pass device, the operational amplifier receiving the feedback voltage and a reference voltage at its inputs is presented. The operational amplifier has: an input stage that receives the feedback voltage and the reference voltage at its inputs, an amplifier stage that receives an output of the input stage at its input, and a current injection circuit for sourcing current into an intermediate node between the input stage and the amplifier stage, or sinking a current from the intermediate node. The disclosure further relates to a corresponding method of operating a linear regulator.
    Type: Application
    Filed: April 3, 2019
    Publication date: September 3, 2020
    Inventors: Carlos Azevedo, Ambreesh Bhattad, Frank Kronmueller, Mahir Uka, Benedikt Wolf