Patents by Inventor John Endredy

John Endredy 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).

  • Protection system and method for DC-DC converters exposed to a strong magnetic field
    Patent number: 8933685
    Abstract: A protection system and method for protecting a direct current to direct current voltage converter (DC-DC converter) from a potentially damaging excessive output current due to exposure to a relatively strong magnetic field is disclosed. The system includes a detector circuit configured to monitor a signal characteristic of the DC-DC converter, and a linear regulator having an output coupled to the load output of the DC-DC converter. The system further includes a control system configured to disable a load output of the DC-DC converter and enable the output of the linear regulator when the detector detects that the signal characteristic has moved outside a predetermined threshold range. Moreover, the control system is further configured to disable the output of the linear regulator after a predetermined time period, and enable the load output of the DC-DC converter after the predetermined time period.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 13, 2015
    Assignee: RF Micro Devices, Inc.
    Inventors: Mohammad Ahsanul Adeeb, John Endredy, Christopher Truong Ngo, Ashraf Rozek
  • PROTECTION SYSTEM AND METHOD FOR DC-DC CONVERTERS EXPOSED TO A STRONG MAGNETIC FIELD
    Publication number: 20120242308
    Abstract: A protection system and method for protecting a direct current to direct current voltage converter (DC-DC converter) from a potentially damaging excessive output current due to exposure to a relatively strong magnetic field is disclosed. The system includes a detector circuit configured to monitor a signal characteristic of the DC-DC converter, and a linear regulator having an output coupled to the load output of the DC-DC converter. The system further includes a control system configured to disable a load output of the DC-DC converter and enable the output of the linear regulator when the detector detects that the signal characteristic has moved outside a predetermined threshold range. Moreover, the control system is further configured to disable the output of the linear regulator after a predetermined time period, and enable the load output of the DC-DC converter after the predetermined time period.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 27, 2012
    Applicant: RF MICRO DEVICES, INC.
    Inventors: Mohammad Ahsanul Adeeb, John Endredy, Christopher Truong Ngo, Ashraf Rozek