Patents by Inventor Jo Luo

Jo Luo 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).

  • Integrated power stage device with offset monitor current for sensing a switch node output current
    Patent number: 9692304
    Abstract: An integrated power stage device includes a switch node that is coupled to an output inductor. The integrated power stage device generates a monitor current that is a scaled version of the current through the output inductor. The integrated power stage device outputs a single-ended offset monitor current that is equal to the monitor current plus a DC offset current. A PWM controller senses the current through the output inductor by receiving a monitor voltage that is developed from the offset monitor current. The PWM controller generates a PWM signal in accordance with the sensed output inductor current to control a switching operation of a power switch of the integrated power stage device.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: June 27, 2017
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Jo Luo, Jon Gladish