Patents by Inventor Maziar Mobarrez

Maziar Mobarrez 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).

  • Publication number: 20230318467
    Abstract: A voltage output circuit and methods for operating voltage output circuits are disclosed. In some embodiments, a voltage output circuit comprises a power converter and a power converter controller, and is configured to provide a desired output voltage for charging an output. In some embodiments, the power converter comprises a first transistor and a second transistor. By using the power converter controller to control the power converter, a current through the first transistor may be increased until it reaches a value corresponding to the desired output voltage. When the value is reached, the first transistor may be turned off to cause a drain-to-source voltage of the second transistor to become zero. When the drain-to-source voltage of the second transistor becomes zero, the second transistor turns on, and an output of the power converter is charged to the desired output voltage.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 5, 2023
    Inventors: Maziar MOBARREZ, Shenli ZOU, Lixiang WEI, Chanaka Manoj SINGHABAHU
  • Publication number: 20230064783
    Abstract: Systems and methods for controlling a dual active bridge converter are disclosed herein. Switch control signals are provided to respective switches of at least one bridge of a dual active bridge converter. Control circuitry causes the switch control signals to switch according to a first switching sequence. After causing the switch control signals to switch according to the first switching sequence, the control circuitry causes the switch control signals to switch according to a second switching sequence, distinct from the first switching sequence, to distribute switching losses among the switches.
    Type: Application
    Filed: May 20, 2022
    Publication date: March 2, 2023
    Inventors: Shenli Zou, Zahra Mohajerani, Maziar Mobarrez, Lixiang Wei
  • Publication number: 20230066489
    Abstract: Systems and methods for controlling a dual active bridge converter or other type of DC-DC converter are disclosed herein. An output voltage of the dual active bridge converter is detected. Based at least in part on the output voltage, a first target duty ratio of a primary bridge of the dual active bridge converter and a second target duty ratio of a secondary bridge of the dual active bridge converter are retrieved from a table. Based on the output voltage, a target phase shift between the primary bridge and the secondary bridge is determined. Based on the first target duty ratio, the second target duty ratio, and the target phase shift, a plurality of switch control signals is caused to be provided to respective switches of the primary bridge and the secondary bridge, to switch according to a time-based switching sequence.
    Type: Application
    Filed: March 31, 2022
    Publication date: March 2, 2023
    Inventors: Shenli Zou, Maziar Mobarrez, Steven Schulz, Zahra Mohajerani