Patents by Inventor Bruno L. Uberti

Bruno L. Uberti 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).

  • Braking function for brushless DC motor control
    Patent number: 8093844
    Abstract: A motor control circuit that features a smart, two-phase braking operation is presented. The motor control circuit includes a motor drive circuit to apply a brake current to a coil of an external motor for active braking of the motor. The motor control circuit further includes a braking control circuit, coupled to the motor drive circuit and responsive to an externally generated control signal, to control the active braking by the motor drive circuit so that the active braking occurs in two phases. The two phases include a first phase that includes a first portion of the active braking and a second phase that includes back electromotive force (BEMF) voltage sensing and a second portion of the active braking.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: January 10, 2012
    Assignee: Allegro Microsystems, Inc.
    Inventors: Alejandro G. Milesi, Bruno L. Uberti
  • BRAKING FUNCTION FOR BRUSHLESS DC MOTOR CONTROL
    Publication number: 20100231147
    Abstract: A motor control circuit that features a smart, two-phase braking operation is presented. The motor control circuit includes a motor drive circuit to apply a brake current to a coil of an external motor for active braking of the motor. The motor control circuit further includes a braking control circuit, coupled to the motor drive circuit and responsive to an externally generated control signal, to control the active braking by the motor drive circuit so that the active braking occurs in two phases. The two phases include a first phase that includes a first portion of the active braking and a second phase that includes back electromotive force (BEMF) voltage sensing and a second portion of the active braking.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 16, 2010
    Inventors: Alejandro G. Milesi, Bruno L. Uberti