Patents by Inventor Bernard Bojarski

Bernard Bojarski 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).

  • Frequency-controlled load driver for an electromechanical system
    Patent number: 6934140
    Abstract: A frequency-controlled load driver circuit includes a steady-state and a transient operational mode. A switching driver switches a load current to a solenoid at a set switching frequency during a steady-state operational mode. An analog-to-digital converter (ADC) oversamples a sense resistor voltage an integer number of times within each period of the switching frequency. A control circuit sets the switching frequency of the driver during the steady-state operational mode by providing predetermined switching times. The control circuit disables switching during the transient mode. Dither can be applied during the steady-state mode.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: August 23, 2005
    Assignee: Motorola, Inc.
    Inventors: Stephen J. Rober, Joshua S. Landau, Bernard Bojarski
  • FREQUENCY-CONTROLLED LOAD DRIVER FOR AN ELECTROMECHANICAL SYSTEM
    Publication number: 20050180084
    Abstract: A frequency-controlled load driver circuit includes a steady-state and a transient operational mode. A switching driver switches a load current to a solenoid at a set switching frequency during a steady-state operational mode. An analog-to-digital converter (ADC) oversamples a sense resistor voltage an integer number of times within each period of the switching frequency. A control circuit sets the switching frequency of the driver during the steady-state operational mode by providing predetermined switching times. The control circuit disables switching during the transient mode. Dither can be applied during the steady-state mode.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 18, 2005
    Inventors: Stephen Rober, Joshua Landau, Bernard Bojarski