Patents by Inventor Martijn Snoeij

Martijn Snoeij 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).

  • BIPOLAR TRANSISTOR LOGARITHMIC CONVERTER WITH AC DIODE CONNECTION
    Publication number: 20230342564
    Abstract: A logarithmic converter circuit includes a converter input and a converter output. The circuit includes a first transistor which includes a control terminal, a first terminal coupled to the converter input, and a second terminal coupled to the converter output. The circuit includes a first operational amplifier which includes a first input coupled to the converter input, a second input coupled to a common potential, and an output coupled to the second terminal. The circuit includes a first capacitor coupled between the first terminal and the control terminal and includes a first resistor coupled between the control terminal and the common potential.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 26, 2023
    Inventors: Martijn Snoeij, Viola Schaffer
  • Differential amplifier including cancellation capacitors
    Patent number: 10560064
    Abstract: In examples, a system comprises a differential amplifier coupled to a parasitic capacitor positioned between a first node and a first reference voltage source. The system comprises a buffer amplifier having an input terminal and an output terminal, the input terminal coupled to the first node and the output terminal coupled to a cancellation capacitor. The system includes a controlled current source coupled to the first node and the input terminal, the controlled current source coupled to a second reference voltage source. The system comprises a current sense circuit coupled to the cancellation capacitor and the second reference voltage source.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: February 11, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Steven G. Brantley, Bharath Karthik Vasan, Srinivas K. Pulijala, Martijn Snoeij
  • DIFFERENTIAL AMPLIFIER INCLUDING CANCELLATION CAPACITORS
    Publication number: 20190386622
    Abstract: In examples, a system comprises a differential amplifier coupled to a parasitic capacitor positioned between a first node and a first reference voltage source. The system comprises a buffer amplifier having an input terminal and an output terminal, the input terminal coupled to the first node and the output terminal coupled to a cancellation capacitor. The system includes a controlled current source coupled to the first node and the input terminal, the controlled current source coupled to a second reference voltage source. The system comprises a current sense circuit coupled to the cancellation capacitor and the second reference voltage source.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Inventors: Steven G. BRANTLEY, Bharath Karthik VASAN, Srinivas K. PULIJALA, Martijn SNOEIJ
  • DIFFERENTIAL AMPLIFIER INCLUDING CANCELLATION CAPACITORS
    Publication number: 20190334490
    Abstract: In examples, a system comprises a differential amplifier coupled to a parasitic capacitor positioned between a first node and a first reference voltage source. The system comprises a buffer amplifier having an input terminal and an output terminal, the input terminal coupled to the first node and the output terminal coupled to a cancellation capacitor. The system includes a controlled current source coupled to the first node and the input terminal, the controlled current source coupled to a second reference voltage source. The system comprises a current sense circuit coupled to the cancellation capacitor and the second reference voltage source.
    Type: Application
    Filed: April 30, 2018
    Publication date: October 31, 2019
    Inventors: Steven G. BRANTLEY, Bharath Karthik VASAN, Srinivas K. PULIJALA, Martijn SNOEIJ
  • Differential amplifier including cancellation capacitors
    Patent number: 10461706
    Abstract: In examples, a system comprises a differential amplifier coupled to a parasitic capacitor positioned between a first node and a first reference voltage source. The system comprises a buffer amplifier having an input terminal and an output terminal, the input terminal coupled to the first node and the output terminal coupled to a cancellation capacitor. The system includes a controlled current source coupled to the first node and the input terminal, the controlled current source coupled to a second reference voltage source. The system comprises a current sense circuit coupled to the cancellation capacitor and the second reference voltage source.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: October 29, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Steven G. Brantley, Bharath Karthik Vasan, Srinivas K. Pulijala, Martijn Snoeij