Patents by Inventor Carsten Wulff

Carsten Wulff 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).

  • Publication number: 20200266816
    Abstract: A power supply circuit portion for supplying power comprises a first power rail, a second power rail, first and second output terminals, an energy storage device connected in parallel with the first and second output terminals; and first and second switching portions. The power supply circuit portion has a first mode in which power is supplied to the first and second output terminals by the first and second power rails, and a second mode in which the first switching portion is arranged such that power is not supplied to the first and second output terminals and the second switching portion is arranged to disconnect the energy storage device from the first power rail.
    Type: Application
    Filed: September 6, 2018
    Publication date: August 20, 2020
    Applicant: Nordic Semiconductor ASA
    Inventors: Carsten WULFF, Samuli HALLIKAINEN
  • Patent number: 10727667
    Abstract: A semiconductor integrated circuit device comprises at least first and second circuits said first and second circuits being connected to a shared external connection. The device further comprises a voltage clamp that is operable to limit a voltage at the shared external connection. The voltage clamp can be selectively enabled depending upon whether the first or second circuit is being used.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: July 28, 2020
    Assignee: NORDIC SEMICONDUCTOR ASA
    Inventors: Tore Austad, Carsten Wulff, Ruben Undheim
  • Publication number: 20180143659
    Abstract: A voltage reference circuit comprises a voltage-controlled current source; a first reference metal-oxide-semiconductor field-effect transistor having a first threshold voltage; a second reference metal-oxide-semiconductor field-effect transistor having a second threshold voltage, wherein the second threshold voltage is different to the first threshold voltage; a current mirror; and a load. The voltage-controlled current source is arranged to generate a first current proportional to a difference between the first and second threshold voltages, and the current mirror is arranged to generate a second current that is a scaled version of the first current through the load so as to produce a reference voltage.
    Type: Application
    Filed: May 11, 2016
    Publication date: May 24, 2018
    Applicant: Nordic Semiconductor ASA
    Inventors: Carsten WULFF, Carolina Fiorella Inche VELEZMORO
  • Publication number: 20170353029
    Abstract: A semiconductor integrated circuit device comprises at least first and second circuits said first and second circuits being connected to a shared external connection. The device further comprises a voltage clamp that is operable to limit a voltage at the shared external connection. The voltage clamp can be selectively enabled depending upon whether the first or second circuit is being used.
    Type: Application
    Filed: December 14, 2015
    Publication date: December 7, 2017
    Applicant: NORDIC SEMICONDUCTOR ASA
    Inventors: Tore AUSTAD, Carsten WULFF, Ruben UNDHEIM
  • Patent number: 9065451
    Abstract: An integrated power-on reset circuit comprises a resistor and a capacitor, wherein the resistor is arranged to pass a current by quantum tunneling in order to charge the capacitor.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: June 23, 2015
    Assignee: NORDIC SEMICONDUCTOR ASA
    Inventor: Carsten Wulff
  • Patent number: 8947280
    Abstract: An integrated-circuit, continuous-time, sigma-delta analog-to-digital converter has a single-ended analog input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analog input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 3, 2015
    Assignee: Nordic Semiconductor ASA
    Inventors: Carsten Wulff, Ola Bruset, Werner Luzi
  • Publication number: 20140191891
    Abstract: An integrated-circuit, continuous-time, sigma-delta analogue-to-digital converter has a single-ended analogue input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analogue input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: NORDIC SEMICONDUCTOR ASA
    Inventors: Carsten Wulff, Ola Bruset, Werner Luzi
  • Publication number: 20140176202
    Abstract: An integrated power-on reset circuit comprises a resistor and a capacitor, wherein the resistor is arranged to pass a current by quantum tunneling in order to charge the capacitor.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 26, 2014
    Applicant: NORDIC SEMICONDUCTOR ASA
    Inventor: CARSTEN WULFF
  • Patent number: 8711020
    Abstract: An integrated-circuit, continuous-time, sigma-delta analogue-to-digital converter has a single-ended analogue input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analogue input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: April 29, 2014
    Assignee: Nordic Semiconductor ASA
    Inventors: Carsten Wulff, Ola Bruset, Werner Luzi
  • Publication number: 20140035770
    Abstract: An integrated-circuit, continuous-time, sigma-delta analogue-to-digital converter has a single-ended analogue input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analogue input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
    Type: Application
    Filed: February 14, 2012
    Publication date: February 6, 2014
    Inventors: Carsten Wulff, Ola Bruset, Werner Luzi