Patents by Inventor Tadija Janjic

Tadija Janjic 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).

  • Self-oscillating regulated low-ripple charge pump and method
    Patent number: 7583133
    Abstract: Charge pump circuitry (30) compares bottom plate voltages of first (C1) and second (C2) flying capacitors in a current mode charge pump (1B) to a reference value (VDD?V28) by means of a comparator (20) which drives a flip-flop (22) that generates first (F1) and second (F2) complementary phase signals. The first and second phase signals control switching of the flying capacitors to determine a flying capacitor swapping frequency just low enough to prevent saturation of a discharge current source (10) that discharges the flying capacitors into an output conductor (3).
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: September 1, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Vadim V. Ivanov, Tadija Janjic
  • SELF-OSCILLATING REGULATED LOW-RIPPLE CHARGE PUMP AND METHOD
    Publication number: 20090189681
    Abstract: Charge pump circuitry (30) compares bottom plate voltages of first (C1) and second (C2) flying capacitors in a current mode charge pump (1B) to a reference value (VDD?V28) by means of a comparator (20) which drives a flip-flop (22) that generates first (F1) and second (F2) complementary phase signals. The first and second phase signals control switching of the flying capacitors to determine a flying capacitor swapping frequency just low enough to prevent saturation of a discharge current source (I0) that discharges the flying capacitors into an output conductor (3).
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Inventors: Vadim V. Ivanov, Tadija Janjic