Patents by Inventor Abdelhalim Alsharqawi

Abdelhalim Alsharqawi 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).

  • Switching converter with output inductor estimator circuit
    Patent number: 10644598
    Abstract: An automotive system includes a battery and a switching converter circuit. The switching converter circuit includes an output inductor estimator circuit coupled to a driver and a switch node of the switching converter circuit. The output inductor estimator circuit is configured to estimate inductance for an output inductor based on a comparison of sampled voltages from the switch node with voltage error values obtained using an adjustable estimated inductance parameter. The output inductor estimator circuit is configured to provide a signal indicating the estimated inductance for the output inductor.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: May 5, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Artur Juliusz Lewinski Komincz, Abdelhalim Alsharqawi
  • Systems and methods of bit stuffing pulse width modulation
    Patent number: 8174248
    Abstract: Systems and methods for bit stuffing pulse width modulation are provided. Example embodiments of the systems and methods of bit stuffing pulse width modulation disclosed herein may allow for a significant reduction in the size of the bootstrap capacitor while giving up only a small percentage of output drive, and reduce die space. Included in such systems and methods is the ability to digitally detect inactivity on the PMW signals for a class D power amplifier, and to digitally insert small charge pulses at a fairly low repetition rate relative to the normal switching frequency. The low repetition rate may preserve the maximum output power while still allowing enough charge to transfer to the bootstrap capacitor.
    Type: Grant
    Filed: May 16, 2009
    Date of Patent: May 8, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Daniel Mavencamp, Dal Yihong, Abdelhalim Alsharqawi, Steve Martindell
  • Systems and Methods of Bit Stuffing Pulse Width Modulation
    Publication number: 20100289560
    Abstract: Systems and methods for bit stuffing pulse width modulation are provided. Example embodiments of the systems and methods of bit stuffing pulse width modulation disclosed herein may allow for a significant reduction in the size of the bootstrap capacitor while giving up only a small percentage of output drive, and reduce die space. Included in such systems and methods is the ability to digitally detect inactivity on the PMW signals for a class D power amplifier, and to digitally insert small charge pulses at a fairly low repetition rate relative to the normal switching frequency. The low repetition rate may preserve the maximum output power while still allowing enough charge to transfer to the bootstrap capacitor.
    Type: Application
    Filed: May 16, 2009
    Publication date: November 18, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Daniel Mavencamp, Dai Yihong, Abdelhalim Alsharqawi, Steve Martindell