Patents by Inventor Janne Antti Grönthal

Janne Antti Grönthal 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).

  • Dynamic compensation for a pre-regulated charge pump
    Patent number: 7965067
    Abstract: An apparatus is provided. The apparatus comprises an error amplifier that amplifies the difference between a reference voltage and a feedback voltage, a first variable impedance circuit coupled to the error amplifier that receives a control voltage from the error amplifier, a charge pump coupled to the variable impedance that receives an input voltage from the variable impedance, and a Miller compensator coupled to the charge pump and to the first variable impedance circuit. The Miller compensator receives the output voltage and output current from the charge pump. It also outputs the feedback voltage, adjusts the control voltage, and has a zero-pole that is proportional to a power of the output current of the charge pump.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: June 21, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Janne Antti Grönthal, Jarkko Antero Routama, Kimmo Kristian Hauskaviita, Jonne Jalmar Sebastian Lindeberg