Patents by Inventor Uzair MOHAMMED

Uzair MOHAMMED 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).

  • Wide input voltage low IQ switching converter
    Patent number: 11349393
    Abstract: A system has an input voltage source, a power stage coupled to the input voltage source, a load coupled to an output node of the power stage and a control circuit, the control circuit implemented on a semiconductor die and including: an error amplifier having a first input, a second input and an output; a voltage divider coupled to the output node and configured to provide an output voltage sense value to the first input of the error amplifier; and a programmable reference voltage circuit with an output coupled to the second input of the error amplifier. The programmable reference voltage circuit includes: a reference voltage source; scaling circuit components between the reference voltage source and the second input of the error amplifier; and a switch between the reference voltage source and the second input of the error amplifier. The control circuit is coupled to the power stage and is configured to generate a control signal for switches of the power stage.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: May 31, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Ahmed Essam Hashim, Sang Yong Lee, Uzair Mohammed, Eric Wayne Tisinger
  • WIDE INPUT VOLTAGE LOW IQ SWITCHING CONVERTER
    Publication number: 20220060108
    Abstract: A system has an input voltage source, a power stage coupled to the input voltage source, a load coupled to an output node of the power stage and a control circuit, the control circuit implemented on a semiconductor die and including: an error amplifier having a first input, a second input and an output; a voltage divider coupled to the output node and configured to provide an output voltage sense value to the first input of the error amplifier; and a programmable reference voltage circuit with an output coupled to the second input of the error amplifier. The programmable reference voltage circuit includes: a reference voltage source; scaling circuit components between the reference voltage source and the second input of the error amplifier; and a switch between the reference voltage source and the second input of the error amplifier. The control circuit is coupled to the power stage and is configured to generate a control signal for switches of the power stage.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 24, 2022
    Inventors: Ahmed Essam HASHIM, Sang Yong LEE, Uzair MOHAMMED, Eric Wayne TISINGER