Patents by Inventor Alfred Raidl

Alfred Raidl 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).

  • Auto-averaging RC time constant calibration
    Patent number: 7911181
    Abstract: This disclosure relates to auto-averaging RC time constant calibration are described. An auto-averaging calibration circuit includes two capacitor branches, where capacitors in the capacitor branches, charge and discharge alternately to accommodate multiple charging cycles in one measurement cycle for measuring a RC time constant. A value of RC time constant is obtained in each charging cycle. A final value of the RC time constant can be determined by averaging various values of the time constants obtained during each charging cycle.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: March 22, 2011
    Assignee: Infineon Technologies AG
    Inventors: Alfred Raidl, Josef Hoeftberger, Bernhard Heigelmayer
  • Dynamically adjustable Q-factors
    Patent number: 7884680
    Abstract: One embodiment relates to a circuit for active loss compensation. The circuit includes a parallel inductor-capacitive (LC) tank circuit having a first single-ended output. A first adjustable capacitor, which includes a first terminal and a second terminal, is coupled to the first single-ended output. The circuit also includes a first pair of transistors having sources coupled to a first common node. One transistor of the first pair of transistors has a drain coupled to the first single-ended output and the other transistor of the first pair of transistors has a gate coupled to the second terminal of the first adjustable capacitor. Other embodiments are also disclosed.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: February 8, 2011
    Assignee: Infineon Technologies AG
    Inventors: Alfred Raidl, Christoph Schmits, Wolfgang Thomann
  • DYNAMICALLY ADJUSTABLE Q-FACTORS
    Publication number: 20090322445
    Abstract: One embodiment relates to a circuit for active loss compensation. The circuit includes a parallel inductor-capacitive (LC) tank circuit having a first single-ended output. A first adjustable capacitor, which includes a first terminal and a second terminal, is coupled to the first single-ended output. The circuit also includes a first pair of transistors having sources coupled to a first common node. One transistor of the first pair of transistors has a drain coupled to the first single-ended output and the other transistor of the first pair of transistors has a gate coupled to the second terminal of the first adjustable capacitor. Other embodiments are also disclosed.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: Infineon Technologies AG
    Inventors: Alfred Raidl, Christoph Schmits, Wolfgang Thomann
  • Auto-Averaging RC Time Constant Calibration
    Publication number: 20090140701
    Abstract: This disclosure relates to auto-averaging RC time constant calibration are described. An auto-averaging calibration circuit includes two capacitor branches, where capacitors in the capacitor branches, charge and discharge alternately to accommodate multiple charging cycles in one measurement cycle for measuring a RC time constant. A value of RC time constant is obtained in each charging cycle. A final value of the RC time constant can be determined by averaging various values of the time constants obtained during each charging cycle.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 4, 2009
    Applicant: Infineon Technologies AG
    Inventors: Alfred Raidl, Josef Hoeftberger, Bernhard Heigelmayer