Patents by Inventor Michele Boscolo

Michele Boscolo 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).

  • Current control in driving DC-brushless motor with independent windings
    Patent number: 6057663
    Abstract: The control of the current in a PWM mode through independently controlled windings of a multi-phase motor driven in a "bipolar" mode is implemented by employing only two sense resistors and related control loops. This is so regardless of the actual number of windings of the motor.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: May 2, 2000
    Assignee: STMicroelectronics S.r.l.
    Inventors: Ezio Galbiati, Michele Boscolo, Luca Bertolini
  • Detection of instantaneous position of the rotor of a brushless DC motor driven in a tripolar mode
    Patent number: 5969491
    Abstract: The sensing of the rotor position for synchronizing the drive of a multi-phase brushless motor when driven in a "multi-polar" mode is carried out by interrupting the driving current in at least one of the windings of the motor coupled with a zero-cross sensing circuit of the BEMF signal. This done by using a first logic signal, enabling a logic gate for asserting a zero-cross event detected by the circuit by a third logic signal, and simultaneously resetting the first signal and the third signal after a certain period of time from the instant of interruption.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: October 19, 1999
    Assignee: STMicroelectronics S.r.l.
    Inventors: Marco Viti, Michele Boscolo, Alberto Salina