Patents by Inventor Alexandre Makarov

Alexandre Makarov 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).

  • Reference circuit
    Patent number: 7710096
    Abstract: A reference circuit comprises a first current generator comprising a first transistor operably coupled to a second transistor and having respective base current corresponding to a positive temperature dependence of the reference circuit. A resistance is operably coupled to the first current generator and arranged to provide a second current corresponding to a negative temperature dependence of the reference circuit. A second current generator is operably coupled to the resistance and the first current generator that generates a combined current as a sum of the second current and base current. In this manner, the output voltage of the curvature compensated voltage and/or current reference circuit is substantially linear and substantially independent of the operating temperature of the circuit.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: May 4, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Ivan Kotchkine, Alexandre Makarov
  • Reference Circuit
    Publication number: 20080048634
    Abstract: A reference circuit comprises a first current generator comprising a first transistor operably coupled to a second transistor and having respective base current corresponding to a positive temperature dependence of the reference circuit. A resistance is operably coupled to the first current generator and arranged to provide a second current corresponding to a negative temperature dependence of the reference circuit. A second current generator is operably coupled to the resistance and the first current generator that generates a combined current as a sum of the second current and base current. In this manner, the output voltage of the curvature compensated voltage and/or current reference circuit is substantially linear and substantially independent of the operating temperature of the circuit.
    Type: Application
    Filed: October 8, 2004
    Publication date: February 28, 2008
    Inventors: Ivan Kotchkine, Alexandre Makarov