Patents by Inventor Maria C. Costa

Maria C. Costa 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).

  • Fast-switching driver circuit for an inductive load
    Patent number: 10823789
    Abstract: A driver circuit includes a power terminal, a reference terminal, and a bridge circuit. The bridge circuit comprises a first switch coupled to the power terminal, a second switch coupled in series between the first switch and the reference terminal to form a first output terminal between the first and second switches, a third switch coupled to the power terminal, and a fourth switch coupled in series between the third switch and the reference terminal to form a second output terminal between the third and fourth switches. The second and fourth switches are PNP BJT devices.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 3, 2020
    Assignee: Allegro MicroSystems, LLC
    Inventors: Conrado Rossi, Hernán D. Romero, Maria C. Costa
  • FAST-SWITCHING DRIVER CIRCUIT FOR AN INDUCTIVE LOAD
    Publication number: 20200096576
    Abstract: A driver circuit includes a power terminal, a reference terminal, and a bridge circuit. The bridge circuit comprises a first switch coupled to the power terminal, a second switch coupled in series between the first switch and the reference terminal to form a first output terminal between the first and second switches, a third switch coupled to the power terminal, and a fourth switch coupled in series between the third switch and the reference terminal to form a second output terminal between the third and fourth switches. The second and fourth switches are PNP BJT devices.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 26, 2020
    Applicant: Allegro MicroSystems, LLC
    Inventors: Conrado Rossi, Hernán D. Romero, Maria C. Costa