Patents by Inventor Sujanto Gunawan

Sujanto Gunawan 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).

  • Reconfigurable topology for switching and linear voltage regulators
    Patent number: 7602167
    Abstract: A configurable voltage regulator (28; 128) operable in either of two selectable modes or topologies is disclosed. In one disclosed embodiment, the voltage regulator (28) can operate as a linear regulator or a switching regulator. A gate driver (35) and an error amplifier (36) is used in each mode. Configuration switches (34) are controlled by a configuration amplifier (40) to connect the error amplifier (36) to the gate driver (35) in the linear regulator mode, or to connect the error amplifier (36) to circuitry (42, 44, 46) for controlling the gate driver (35) in switching regulator mode. In another disclosed embodiment, the voltage regulator (128) generates a negative polarity regulated voltage according to a switching regulator or charge pump topology.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: October 13, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Frederick Trafton, Sujanto Gunawan
  • Reconfigurable topology for switching and linear voltage regulators
    Publication number: 20090033309
    Abstract: A configurable voltage regulator (28; 128) operable in either of two selectable modes or topologies is disclosed. In one disclosed embodiment, the voltage regulator (28) can operate as a linear regulator or a switching regulator. A gate driver (35) and an error amplifier (36) is used in each mode. Configuration switches (34) are controlled by a configuration amplifier (40) to connect the error amplifier (36) to the gate driver (35) in the linear regulator mode, or to connect the error amplifier (36) to circuitry (42, 44, 46) for controlling the gate driver (35) in switching regulator mode. In another disclosed embodiment, the voltage regulator (128) generates a negative polarity regulated voltage according to a switching regulator or charge pump topology.
    Type: Application
    Filed: August 26, 2003
    Publication date: February 5, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Fredrick Trafton, Sujanto Gunawan
  • Reconfigurable topology for switching and linear voltage regulators
    Publication number: 20050046405
    Abstract: A configurable voltage regulator (28; 128) operable in either of two selectable modes or topologies is disclosed. In one disclosed embodiment, the voltage regulator (28) can operate as a linear regulator or a switching regulator. A gate driver (35) and an error amplifier (36) is used in each mode. Configuration switches (34) are controlled by a configuration amplifier (40) to connect the error amplifier (36) to the gate driver (35) in the linear regulator mode, or to connect the error amplifier (36) to circuitry (42, 44, 46) for controlling the gate driver (35) in switching regulator mode. In another disclosed embodiment, the voltage regulator (128) generates a negative polarity regulated voltage according to a switching regulator or charge pump topology.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 3, 2005
    Applicant: Texas Instruments Incorporated
    Inventors: Fredrick Trafton, Sujanto Gunawan