Patents by Inventor Jurgen Margriet Antonius Willaert

Jurgen Margriet Antonius Willaert 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: 11843324
    Abstract: A resonant inverter for a resonant converter, comprising a switch network and a resonant tank circuit. The switch network is controlled by a control circuit, which is responsive to a sampled electrical feedback parameter provided by the resonant tank circuit. The value of the sampled electrical feedback parameter or the time of sampling the electrical feedback parameter is modified in response to a measured time delay between the control circuit indicating a desire to change a switching state of the switch network, and the output of the switch network responding to this desire.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: December 12, 2023
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Jurgen Margriet Antonius Willaert, Reinhold Elferich, Christian Hattrup, Eric Hermanus Maria Remmerswaal
  • Publication number: 20220247325
    Abstract: A resonant inverter for a resonant converter, comprising a switch network and a resonant tank circuit. The switch network is controlled by a control circuit, which is responsive to a sampled electrical feedback parameter provided by the resonant tank circuit. The value of the sampled electrical feedback parameter or the time of sampling the electrical feedback parameter is modified in response to a measured time delay between the control circuit indicating a desire to change a switching state of the switch network, and the output of the switch network responding to this desire.
    Type: Application
    Filed: July 14, 2020
    Publication date: August 4, 2022
    Inventors: Jurgen Margriet Antonius WILLAERT, Reinhold ELFERICH, Christian HATTRUP, Eric Hermanus Maria REMMERSWAAL
  • Patent number: 10652966
    Abstract: Current through an illumination source is controlled by means of a feedback loop whereby the current is measured and fed back to a current controller, which compares this to a set-point and based thereon outputs a current control signal which controls downstream power circuitry driving the current through the illumination source. This keeps the illumination at a steady dim level. Data is also coded into the illumination by modulating the current control signal, i.e. at the output of the current controller, but prior to the input to the power circuitry. The present disclosure provides a compensation filter arranged to apply a compensation to the error signal, to at least partially remove an effect of a distortion of the current measurement caused by the modulation of the data symbols into the illumination source current.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 12, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Erik De Wilde, Jurgen Margriet Antonius Willaert
  • Publication number: 20200053851
    Abstract: Current through an illumination source is controlled by means of a feedback loop whereby the current is measured and fed back to a current controller, which compares this to a set-point and based thereon outputs a current control signal which controls downstream power circuitry driving the current through the illumination source. This keeps the illumination at a steady dim level. Data is also coded into the illumination by modulating the current control signal, i.e. at the output of the current controller, but prior to the input to the power circuitry. The present disclosure provides a compensation filter arranged to apply a compensation to the error signal, to at least partially remove an effect of a distortion of the current measurement caused by the modulation of the data symbols into the illumination source current.
    Type: Application
    Filed: March 2, 2018
    Publication date: February 13, 2020
    Inventors: Erik DE WILDE, Jurgen Margriet Antonius WILLAERT
  • Patent number: 10028342
    Abstract: A driver circuit comprising: output circuitry for connecting the circuit to a load, the output circuitry comprising one or more energy-storing components; switching circuitry arranged to supply power from a power supply to the load by supplying a current through at least one of the energy-storing components that resists a change in current, or applying a voltage across at least one of the energy-storing components that resists a change in voltage; and control circuitry arranged to control the switching circuitry, to cause the above-mentioned current or voltage to oscillate between an upper envelope and a lower envelope. The control circuitry is configured to modulate data into this current or voltage by shifting the upper envelope between at least a first amplitude level and a second amplitude level, and by shifting the lower envelope by the same amount in the same direction at the same time.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: July 17, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Jurgen Margriet Antonius Willaert, Joost Jacob Brilman, Erik De Wilde
  • Patent number: 9973072
    Abstract: The invention relates to a power converter stage (2) for providing power supply to a power converter controller (3), a power converter controller (3) for such power converter stage (2), a power converter (1) including such power converter stage (2) and such power converter controller (3), a method for providing power to a controller (3) of a power converter (1) and a software product for controlling a power converter (1).
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: May 15, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Jurgen Margriet Antonius Willaert, Dalibor Cvoric
  • Publication number: 20170231042
    Abstract: A driver circuit comprising: output circuitry for connecting the circuit to a load, the output circuitry comprising one or more energy-storing components; switching circuitry arranged to supply power from a power supply to the load by supplying a current through at least one of the energy-storing components that resists a change in current, or applying a voltage across at least one of the energy-storing components that resists a change in voltage; and control circuitry arranged to control the switching circuitry, to cause the above-mentioned current or voltage to oscillate between an upper envelope and a lower envelope. The control circuitry is configured to modulate data into this current or voltage by shifting the upper envelope between at least a first amplitude level and a second amplitude level, and by shifting the lower envelope by the same amount in the same direction at the same time.
    Type: Application
    Filed: July 20, 2015
    Publication date: August 10, 2017
    Inventors: Jurgen Margriet Antonius WILLAERT, Joost Jacob BRILMAN, Erik DE WILDE
  • Publication number: 20150288273
    Abstract: The invention relates to a power converter stage (2) for providing power supply to a power converter controller (3), a power converter controller (3) for such power converter stage (2), a power converter (1) including such power converter stage (2) and such power converter controller (3), a method for providing power to a controller (3) of a power converter (1) and a software product for controlling a power converter (1).
    Type: Application
    Filed: October 16, 2013
    Publication date: October 8, 2015
    Inventors: Jurgen Margriet Antonius Willaert, Dalibor Cvoric
  • Publication number: 20100277408
    Abstract: A control device (701) for controlling the output of one or more full-bridges (101, 102) is described. The control device (701) reduces the amount of electromagnetic emissions by staggering the switching the outputs from the full-bridge inverters (101, 102). This is achieved by synchronising the outputs to be symmetrical about a synchronisation pulse (305).
    Type: Application
    Filed: June 7, 2006
    Publication date: November 4, 2010
    Applicant: NXP B.V.
    Inventors: Jurgen Margriet Antonius Willaert, Arjan Van Den Berg, Jozef Maria Gerardus Bongers