Patents by Inventor Arvind Kudlu

Arvind Kudlu 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).

  • Time capture based resolver to digital converter
    Patent number: 9528857
    Abstract: A resolver to digital converter system comprises a resolver and a controller. The resolver has a reference winding attached to a rotor, and first and second output windings attached to a stator and coupled to the reference winding. The reference winding is configured to be driven with a reference AC signal having a known frequency and induces first and second output signals from the first and second output windings in response to the reference AC signal. The controller circuit is configured to compare the first and second output signals to first and second linear signals respectively, ascertain first and second time intervals between first and second determined start time points and first and second stop time points where magnitudes of the first and second output signals are substantially equal to magnitudes of the first and second linear signals, respectfully. The controller circuit is further configured to calculate a rotating angle of the resolver based on the first and second time intervals.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: December 27, 2016
    Assignee: Infineon Technologies AG
    Inventor: Arvind Kudlu
  • TIME CAPTURE BASED RESOLVER TO DIGITAL CONVERTER
    Publication number: 20160109266
    Abstract: A resolver to digital converter system comprises a resolver and a controller. The resolver has a reference winding attached to a rotor, and first and second output windings attached to a stator and coupled to the reference winding. The reference winding is configured to be driven with a reference AC signal having a known frequency and induces first and second output signals from the first and second output windings in response to the reference AC signal. The controller circuit is configured to compare the first and second output signals to first and second linear signals respectively, ascertain first and second time intervals between first and second determined start time points and first and second stop time points where magnitudes of the first and second output signals are substantially equal to magnitudes of the first and second linear signals, respectfully. The controller circuit is further configured to calculate a rotating angle of the resolver based on the first and second time intervals.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 21, 2016
    Inventor: Arvind Kudlu