Patents by Inventor Thomas Duerbaum

Thomas Duerbaum 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: 9835666
    Abstract: A noise detection circuit 100 for a power supply, the noise detection circuit 100 comprising: an impedance element 110 connected to a line 104 for carrying a power supply current having a noise signal component, the noise signal comprising a common mode noise signal and a differential mode noise signal; a filter element 112 coupled to the impedance element 110 and configured to suppress the differential mode noise signal in the noise detection circuit 110; and an evaluation circuit 140 coupled to the impedance element 110 or the filter element 112 and arranged to sense the common mode noise signal and provide an output representative of the common mode noise signal.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 5, 2017
    Assignee: NXP B.V.
    Inventors: Juergen Stahl, Thomas Duerbaum, Alexander Pawellek, Jens Goettle, Hans Halberstadt, Anton Blom, Frans Pansier
  • Patent number: 9506969
    Abstract: A common mode noise sensor with a single amplification path is disclosed. The common mode noise sensor includes first and second terminals for receiving respective first and second signals from a power supply, an amplifier stage connected to the first and second terminals and having an output and a resistor network connected to the amplifier stage. The resistor network is arranged such that the output of the amplifier stage is configured to provide an output signal in which a differential mode noise in the first and second signals is suppressed in preference to a common mode noise in the first and second signals.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: November 29, 2016
    Assignee: NXP B.V.
    Inventors: Juergen Stahl, Jens Goettle, Thomas Duerbaum, Alexander Pawellek, Anton Blom, Hans Halberstadt, Frans Pansier
  • Patent number: 9429611
    Abstract: The present invention relates to a noise sensor for an alternating or direct current power supply. The sensor comprises a noise sensing unit and a noise separator. The noise separator is configured to receive first, second and third input signals and provide a first output signal representative of the common mode noise and a second output signal representative of the differential mode noise. The noise sensing unit comprises a first capacitive element, a second capacitive element, a first resistive element and a second resistive element.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: August 30, 2016
    Assignee: NXP B.V.
    Inventors: Juergen Stahl, Alexander Pawellek, Markus Schmid, Thomas Duerbaum, Johann Kuebrich, Hans Halberstadt, Frans Pansier, Jens Goettle, Anton Blom
  • Publication number: 20160061871
    Abstract: A noise detection circuit 100 for a power supply, the noise detection circuit 100 comprising: an impedance element 110 connected to a line 104 for carrying a power supply current having a noise signal component, the noise signal comprising a common mode noise signal and a differential mode noise signal; a filter element 112 coupled to the impedance element 110 and configured to suppress the differential mode noise signal in the noise detection circuit 110; and an evaluation circuit 140 coupled to the impedance element 110 or the filter element 112 and arranged to sense the common mode noise signal and provide an output representative of the common mode noise signal.
    Type: Application
    Filed: July 24, 2015
    Publication date: March 3, 2016
    Inventors: Juergen Stahl, Thomas Duerbaum, Alexander Pawellek, Jens Goettle, Hans Halberstadt, Anton Blom, Frans Pansier
  • Patent number: 9119274
    Abstract: The invention relates to methods of controlling operation of a resonant power converter and to controllers configured to operate according to such methods. Embodiments disclosed include a method of controlling a power output of a resonant power converter comprising first and second switches (S1, S2) connected in series between a pair of supply voltage lines, a resonant circuit connected to a node between the first and second switches and to an output connectable to an output electrical load, the resonant circuit comprising an inductor and a capacitor, the method comprising: closing the first switch (S1) to start a first conduction interval; setting a first voltage level (902); setting a first time period; and opening the first switch (S1) to end the first conduction interval when a voltage (901) across the capacitor crosses the first voltage level (902) and when a time period from closing the first switch exceeds the first time period (904).
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: August 25, 2015
    Assignee: NXP B.V.
    Inventors: Alexander Pawellek, Juergen Stahl, Jens Goettle, Thomas Duerbaum, Frans Pansier, Hans Halberstadt
  • Publication number: 20150212133
    Abstract: A common mode noise sensor with a single amplification path is disclosed. The common mode noise sensor includes first and second terminals for receiving respective first and second signals from a power supply, an amplifier stage connected to the first and second terminals and having an output and a resistor network connected to the amplifier stage. The resistor network is arranged such that the output of the amplifier stage is configured to provide an output signal in which a differential mode noise in the first and second signals is suppressed in preference to a common mode noise in the first and second signals.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 30, 2015
    Inventors: Juergen Stahl, Jens Goettle, Thomas Duerbaum, Alexander Pawellek, Anton Blom, Hans Halberstadt, Frans Pansier Pansier
  • Publication number: 20140218048
    Abstract: The present invention relates to a noise sensor for an alternating or direct current power supply. The sensor comprises a noise sensing unit and a noise separator. The noise separator is configured to receive first, second and third input signals and provide a first output signal representative of the common mode noise and a second output signal representative of the differential mode noise. The noise sensing unit comprises a first capacitive element, a second capacitive element, a first resistive element and a second resistive element.
    Type: Application
    Filed: January 13, 2012
    Publication date: August 7, 2014
    Applicant: NXP B.V.
    Inventors: Juergen Stahl, Alexander Pawellek, Markus Schmid, Thomas Duerbaum, Johann Kuebrich, Hans Halberstadt, Frans Pansier, Jens Gettle, Anton Blom
  • Publication number: 20140210370
    Abstract: The invention relates to methods of controlling operation of a resonant power converter and to controllers configured to operate according to such methods. Embodiments disclosed include a method of controlling a power output of a resonant power converter comprising first and second switches (S1, S2) connected in series between a pair of supply voltage lines, a resonant circuit connected to a node between the first and second switches and to an output connectable to an output electrical load, the resonant circuit comprising an inductor and a capacitor, the method comprising: closing the first switch (S1) to start a first conduction interval; setting a first voltage level (902); setting a first time period; and opening the first switch (S1) to end the first conduction interval when a voltage (901) across the capacitor crosses the first voltage level (902) and when a time period from closing the first switch exceeds the first time period (904).
    Type: Application
    Filed: July 3, 2012
    Publication date: July 31, 2014
    Applicant: NXP B.V.
    Inventors: Alexander Pawellek, Juergen Stahl, Jens Goettle, Thomas Duerbaum, Frans Pansier, Hans Halberstadt
  • Patent number: 8094466
    Abstract: The invention relates to a resonant converter (1) which has multiple outputs (7a, 7b) and contains a transformer (4) with a primary winding (5) and at least two secondary windings (6a, 6b) having different winding directions. In this way it is possible to design as cost-effectively as possible a resonant converter with multiple outputs, two of which can be controlled separately from each other.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: January 10, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Thomas Duerbaum, Reinhold Elferich
  • Patent number: 7915991
    Abstract: Conventional transformers with fractional turns have pre-manufactured cores usually with a complicated structure. According to the present invention, a method is provided of manufacturing a planar transformer where a ferrite polymer compound is laminated to a PCB for forming the core of the transformer. Advantageously, this may allow for the provision of a cheap and robust transformer.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: March 29, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Eberhard Waffenschmidt, Thomas Dürbaum
  • Patent number: 7907010
    Abstract: Recently, the use of class-D audio amplifiers has become more and more widespread. In contrast to the generally employed class-AB linear amplification technology, class-D allows for improved efficiency. However, the class-D principle is known for its poor distortion characteristics. According to the present invention a digital amplifier (18) is provided for converting an audio signal to a power output, comprising a ripple suppression circuit (16) for suppressing voltage ripples in a supply voltage supplied to the bridge circuit with (6) at least one pair of switches. The ripple suppression circuit (16) suppresses ripples in the supply voltage supplied to a switch in the bridge circuit (6), which has been found to cause a major part of the distortions in the output signal of the digital amplifier (18).
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: March 15, 2011
    Assignee: NXP B.V.
    Inventors: Matthias Wendt, Iain Mosely, F. Javier Esguevillas, Thomas Dürbaum, Georg Sauerländer, Heinz Van Der Broeck
  • Patent number: 7839132
    Abstract: A power converter comprising an inductor for receiving energy from a power supply, and connected to the inductor an output capacitor for providing an output voltage. In order to ensure a quick compensation of a reduction of load at the voltage output using few output capacitors, an additional current path is arranged in parallel either to the inductor or to the capacitor, which additional current path can be opened and closed. A current flowing through the additional current path reaches basically immediately a desired value, when the additional current path is opened. Feedback means are moreover provided for opening the additional current path, when the output voltage reaches a predetermined maximum value.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: November 23, 2010
    Assignee: NXP B.V.
    Inventors: Thomas Dürbaum, Reinhold Elferich, Tobias G. Tolle, Jeffery Olsen
  • Patent number: 7719850
    Abstract: A power supply module arrangement with an integrated circuit mounted on a bearing unit and a power supply includes an integrated circuit mounted on a bearing unit and a power supply module arrangement that is placed on the combination of bearing unit and integrated circuit. The power supply module arrangement includes a base extending at least partially over the base of the integrated circuit and/or all around the base of the integrated circuit. The power supply module arrangement allows for greater permissible load jumps, greater permissible current change rates and ever tighter tolerances regarding the constancy of the supply voltage.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: May 18, 2010
    Assignee: NXP B.V.
    Inventors: Thomas Duerbaum, Reinhold Elferich
  • Patent number: 7602229
    Abstract: Resonant gate driver circuits provide for efficient switching of, for example, a MOSFET. However, often an operation of the resonant gate driver circuit does not allow for an application where high switching frequencies are required. According to the present invention, a pre-charging of the inductor of the resonant gate driver circuit is performed. This allows for a highly efficient and fast operation of the MOSFETs.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: October 13, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Tobias Georg Tolle, Thomas Dürbaum, Georg Sauerländer, Toni Lopez
  • Patent number: 7579900
    Abstract: Since parallel MOSFETs are usually driven with one gate signal in power applications, the current sharing between the MOSFETs is automatically established with regard to the characteristics of the individual MOSFETs. This may lead to a large non-uniformity of the current distribution between the MOSFETs. According to the present invention, an individual control of the on-resistances of the MOSFETs is provided, which allows for an improved current sharing between paralleled MOSFETs.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: August 25, 2009
    Assignee: NXP B.V.
    Inventor: Thomas Dürbaum
  • Patent number: 7539029
    Abstract: A conversion circuit for converting solar power into an alternating 3-phase mains comprises a converter for converting the power from a solar cell into an unipolar converter output voltage provided between a first and a second converter output terminal of the converter, the converter having a constant power output regulation. The conversion circuit further comprises an inverter for cyclically switching one of three 3-phase output terminals to the first converter output terminal, one to the second converter output terminal and one intermittently to the first and second converter output terminal. With this conversion circuit and method, high capacity energy storage components (such as a capacitor having a large capacitance) can be avoided in the conversion circuit.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: May 26, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Peter Luerkens, Matthias Wendt, Thomas Duerbaum, Heinz Van Der Broeck
  • Patent number: 7538554
    Abstract: An MR apparatus has a resonant circuit, which is formed by an MR receiving coil (L1) and a capacitor (C1), and has an electronic control circuit (S) for switching the resonant circuit between two or more operating modes. The invention proposes that the electronic control circuit (S) be connected with a receiving device (L2) for wireless reception of a high-frequency electromagnetic control signal.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: May 26, 2009
    Assignee: Koninlijke Philips Electronics N.V.
    Inventors: Matthias Wendt, Thomas Dürbaum, Achim Hilgers, Rainer Kiewitt, Heiko Pelzer
  • Patent number: 7444530
    Abstract: The invention relates to a standby circuit, an electrical device with a standby circuit, a method for the control of the electrical device and a power supply assembly. Whereas the power supply unit and the control electronics are in permanent operation when conventional devices are in the standby mode and consequently have a high power consumption, the invention proposes a solution for saving energy while retaining convenience of operation by which the power supply unit is switched off in the standby mode. A standby circuit, preferably fed by an energy buffer element, remains active in the standby mode and monitors signal inputs for activation events. When an activation event occurs, the standby circuit switches on the power supply unit.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: October 28, 2008
    Assignee: NXP B.V.
    Inventors: Carsten Deppe, Peter Luerkens, Thomas Duerbaum, Matthias Wendt, Christoph Loef, Georg Sauerlaender
  • Patent number: 7408270
    Abstract: Usually, power supplies are not capable of switching off part of the outputs of a main power supply during stand-by. Due to this, stand-by power supplies are used in addition to operation power supplies. Consistent with an example embodiment, a forward converter is provided, including switches in the rectifier circuit thereof. Due to this, the rectifier circuits may be selectively switched on and off. Advantageously, this may allow that the main outputs of such a forward converter are switched off while on stand-by.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: August 5, 2008
    Assignee: NXP B.V.
    Inventors: Thomas Dürbaum, Georg Sauerländer, Cornelis Johannes Adrianus Schetters
  • Publication number: 20080094017
    Abstract: A conversion circuit for converting solar power into an alternating 3-phase maims (M) comprises a converter (conv) for converting the power from a solar cell (sc) into an unipolar converter output voltage provided between a first and a second converter output terminal of the converter, the converter having a constant power output regulation. The conversion circuit further comprises an inverter (Inv) for cyclically switching one of 3 3-phase output terminals to the first converter output terminal, one to the second converter output terminal and one intermittently to the first and second converter output terminal. With this conversion circuit and method, high capacity energy storage components (such as a capacitor having a large capacitance) can be avoided in the conversion circuit.
    Type: Application
    Filed: July 7, 2005
    Publication date: April 24, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Peter Luerkens, Matthias Wendt, Thomas Duerbaum, Heinz Van Der Broeck