Patents by Inventor Dirk Duesterberg

Dirk Duesterberg 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).

  • Patent number: 10910956
    Abstract: A method is provided for operating a frequency converter, which is designed to drive a three-phase motor, wherein the frequency converter has three half-bridges each having at least two switches. The method includes the following steps: generating three phase voltages for the three-phase motor by a pulse width modulation, wherein, for the pulse width modulation, various switching patterns of the switches are activated, wherein specific star point voltages ensue for various groups of switching patterns; and in at least one operating state of the frequency converter, within a respective period of the pulse width modulation, activating only those switching patterns in which an identical star point voltage ensues.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 2, 2021
    Assignee: Lenze Automation GmbH
    Inventors: Fritz Witte, Thomas Petersen, Dirk Duesterberg
  • Patent number: 10879925
    Abstract: A method produces a digital signal from an analog signal. The method includes: producing a pulse-width-modulated actuation signal by a frequency converter, wherein the pulse-width-modulated actuation signal is produced over a number n of periods of the pulse width modulation such that the signal curve of the pulse-width-modulated actuation signal is identical in the respective periods; applying the actuation signal to a load; producing a bitstream with a predetermined bit repetition duration depending on an analog signal to be measured by a sigma-delta modulator, wherein the analog signal to be measured depends on the actuation signal and on the load, wherein a number m of bits are produced and stored with the predetermined bit repetition duration over a respective period of the pulse-width-modulated actuation signal; and summing corresponding bits of the respective periods in order to form the digital signal.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: December 29, 2020
    Assignee: Lenze Automation GmbH
    Inventors: Andreas Wempe, Dirk Duesterberg
  • Patent number: 10784889
    Abstract: An electric control device includes a first delta sigma modulator having a clock input connection, a second delta sigma modulator having a clock input connection, and an evaluation unit. The evaluation unit includes a first clock output connection which is connected to the clock input connection of the first delta sigma modulator by a first electrical cable, and a second clock output connection which is connected to the clock input connection of the second delta sigma modulator by a second electrical cable. The evaluation unit is designed to generate a clock signal (CLK1) at the first clock output connection (7) in phase opposition to a clock signal (CLK2) at the second clock output connection (9).
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: September 22, 2020
    Assignee: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Daniel Borowski, Andreas Burgermeister
  • Patent number: 10705991
    Abstract: A circuit for generating a sampling signal for a UART interface has an input terminal designed to receive a peripheral clock, an output terminal designed to output the sampling signal, a bit rate memory designed to store a value corresponding to a desired bit rate of the UART interface, a peripheral clock memory designed to store a value corresponding to a frequency of the peripheral clock, a sum memory designed to store a sum value, and a computing unit. The computing unit compares a comparison value, which is dependent on the sum value stored in the sum memory, with a threshold value, which is dependent on the value stored in the peripheral clock memory. The result of the comparison is taken as a basis for generating the sampling signal at a first level or a second level.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 7, 2020
    Assignee: Lenze Automation GmbH
    Inventor: Dirk Duesterberg
  • Publication number: 20200192316
    Abstract: A method for starting up a controller system having at least one electric controller and a plurality of hardware modules of different types which can be coupled to the controller. To each type of hardware module there is assigned a type-specific parameter set and a type-specific control program. A respective parameter set has a quantity of parameters with adjustable parameter values. The method has the steps of: coupling a hardware module to the controller, determining the type of the coupled hardware module by way of the controller, selecting the type-specific control program by way of the controller, and by way of the controller, selecting the type-specific parameter set as an adjustable parameter set.
    Type: Application
    Filed: August 2, 2018
    Publication date: June 18, 2020
    Inventors: Peter HESSE, Dirk DUESTERBERG, Thomas GENTZEN
  • Publication number: 20200177198
    Abstract: An electric control device includes a first delta sigma modulator having a clock input connection, a second delta sigma modulator having a clock input connection, and an evaluation unit. The evaluation unit includes a first clock output connection which is connected to the clock input connection of the first delta sigma modulator by a first electrical cable, and a second clock output connection which is connected to the clock input connection of the second delta sigma modulator by a second electrical cable. The evaluation unit is designed to generate a clock signal (CLK1) at the first clock output connection (7) in phase opposition to a clock signal (CLK2) at the second clock output connection (9).
    Type: Application
    Filed: July 9, 2018
    Publication date: June 4, 2020
    Inventors: Dirk DUESTERBERG, Daniel BOROWSKI, Andreas BURGERMEISTER
  • Publication number: 20190384727
    Abstract: A circuit for generating a sampling signal for a UART interface has an input terminal designed to receive a peripheral clock, an output terminal designed to output the sampling signal, a bit rate memory designed to store a value corresponding to a desired bit rate of the UART interface, a peripheral clock memory designed to store a value corresponding to a frequency of the peripheral clock, a sum memory designed to store a sum value, and a computing unit. The computing unit compares a comparison value, which is dependent on the sum value stored in the sum memory, with a threshold value, which is dependent on the value stored in the peripheral clock memory. The result of the comparison is taken as a basis for generating the sampling signal at a first level or a second level.
    Type: Application
    Filed: January 29, 2018
    Publication date: December 19, 2019
    Inventor: Dirk DUESTERBERG
  • Publication number: 20190215006
    Abstract: A method produces a digital signal from an analog signal. The method includes: producing a pulse-width-modulated actuation signal by a frequency converter, wherein the pulse-width-modulated actuation signal is produced over a number n of periods of the pulse width modulation such that the signal curve of the pulse-width-modulated actuation signal is identical in the respective periods; applying the actuation signal to a load; producing a bitstream with a predetermined bit repetition duration depending on an analog signal to be measured by a sigma-delta modulator, wherein the analog signal to be measured depends on the actuation signal and on the load, wherein a number m of bits are produced and stored with the predetermined bit repetition duration over a respective period of the pulse-width-modulated actuation signal; and summing corresponding bits of the respective periods in order to form the digital signal.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 11, 2019
    Inventors: Andreas WEMPE, Dirk DUESTERBERG
  • Patent number: 10348325
    Abstract: A measuring device includes a delta-sigma modulator configured to take an analog signal as a basis for generating a bit stream, and an evaluation unit that receives the bit stream from the delta-sigma modulator and evaluates the received bit stream. The measuring device has a single data transmission line, wherein the delta-sigma modulator is configured to transmit the bit stream to the evaluation unit via the single data transmission line using a transmit clock, and wherein the evaluation unit is configured to reconstruct the transmit clock and/or a phase of bits within the bit stream from the received bit stream and to extract the bits from the received bit stream based on the reconstructed transmit clock and/or based on the reconstructed phase.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 9, 2019
    Assignee: Lenze Automation GmbH
    Inventor: Dirk Duesterberg
  • Publication number: 20190058488
    Abstract: A measuring device includes a delta-sigma modulator configured to take an analog signal as a basis for generating a bit stream, and an evaluation unit that receives the bit stream from the delta-sigma modulator and evaluates the received bit stream. The measuring device has a single data transmission line, wherein the delta-sigma modulator is configured to transmit the bit stream to the evaluation unit via the single data transmission line using a transmit clock, and wherein the evaluation unit is configured to reconstruct the transmit clock and/or a phase of bits within the bit stream from the received bit stream and to extract the bits from the received bit stream based on the reconstructed transmit clock and/or based on the reconstructed phase.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 21, 2019
    Inventor: Dirk Duesterberg
  • Publication number: 20180219493
    Abstract: A method is provided for operating a frequency converter, which is designed to drive a three-phase motor, wherein the frequency converter has three half-bridges each having at least two switches. The method includes the following steps: generating three phase voltages for the three-phase motor by a pulse width modulation, wherein, for the pulse width modulation, various switching patterns of the switches are activated, wherein specific star point voltages ensue for various groups of switching patterns; and in at least one operating state of the frequency converter, within a respective period of the pulse width modulation, activating only those switching patterns in which an identical star point voltage ensues.
    Type: Application
    Filed: July 19, 2016
    Publication date: August 2, 2018
    Inventors: Fritz WITTE, Thomas PETERSEN, Dirk DUESTERBERG
  • Patent number: 9270294
    Abstract: A method is provided for generating a digital signal from an analog signal generated using a frequency converter on the basis of pulse width modulation with a variable period duration, values of the digital signal corresponding to an average value of the analog signal over an associated period duration of the pulse width modulation.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: February 23, 2016
    Assignee: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Heiko Stichweh
  • Publication number: 20150365101
    Abstract: A method is provided for generating a digital signal from an analog signal generated using a frequency converter on the basis of pulse width modulation with a variable period duration, values of the digital signal corresponding to an average value of the analog signal over an associated period duration of the pulse width modulation.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 17, 2015
    Inventors: Dirk DUESTERBERG, Heiko STICHWEH
  • Patent number: 8970417
    Abstract: A method is provided for generating a digital signal (DS) from an analog signal (IA, UA) generated by a frequency converter on the basis of pulse width modulation, wherein the digital signal corresponds to a mean value of the analog signal over a period of the pulse width modulation. The method includes the acts of: generating a bit stream (BS(i)) with a predetermined bit repetition duration (BW) depending on the analog signal by way of a sigma-delta modulator (1) and, during a time interval which has a duration which is at least as great as the period of the pulse width modulation: multiplying a respective bit (BS(i)) of the bit stream by a corresponding rating coefficient (BK(i)) for generating a respective bit/rating coefficient product and summing the respective bit/rating coefficient products, wherein the sum represents the digital signal.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Holger Borcherding
  • Publication number: 20140226709
    Abstract: A method is provided for generating a digital signal (DS) from an analog signal (IA, UA) generated by a frequency converter on the basis of pulse width modulation, wherein the digital signal corresponds to a mean value of the analog signal over a period of the pulse width modulation. The method includes the acts of: generating a bit stream (BS(i)) with a predetermined bit repetition duration (BW) depending on the analog signal by way of a sigma-delta modulator (1) and, during a time interval which has a duration which is at least as great as the period of the pulse width modulation: multiplying a respective bit (BS(i)) of the bit stream by a corresponding rating coefficient (BK(i)) for generating a respective bit/rating coefficient product and summing the respective bit/rating coefficient products, wherein the sum represents the digital signal.
    Type: Application
    Filed: August 7, 2012
    Publication date: August 14, 2014
    Applicant: Lenze Automation GmbH
    Inventors: Dirk Duesterberg, Holger Borcherding