Patents by Inventor Thomas Dürbaum
Thomas Dürbaum 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).
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Publication number: 20230019218Abstract: A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width modulated switching signals (15) for driving switching elements (12) of the inverter (2), wherein the control device (8) is configured to determine a modulation type by means of which the pulse-width modulated switching signals (15) are generated depending on operating point information that describes an operating point defined by at least one operating parameter, and to use a first modulation type in at least one first operating region (21, 28, 30, 31) and a second modulation type in another operating region (32, 32a, 32b).Type: ApplicationFiled: November 24, 2020Publication date: January 19, 2023Applicant: Valeo Siemens eAutomotive Germany GmbHInventors: Panagiotis Mantzanas, Daniel Kübrich, Thomas Dürbaum, Alexander Bucher, Alexander Pawellek, Christian Hasenohr, Harald Hofmann
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Publication number: 20220337175Abstract: A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width modulated switching signals (15) with a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to determine the carrier frequency depending on operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) and, as the rotation speed increases and the magnitude of the torque falls, to increase the carrier frequency within an operating region (22) that extends within a rotation speed interval with a lower rotation speed limit (23) differing from zero and with an upper rotation speed limit (24) lying in a power-limiting operating region (21) or field-weakening operating region.Type: ApplicationFiled: July 27, 2020Publication date: October 20, 2022Applicant: Valeo Siemens eAutomotive Germany GmbHInventors: Panagiotis Mantzanas, Daniel Kübrich, Thomas Dürbaum, Alexander Bucher, Alexander Pawellek, Christian Hasenohr, Harald Hofmann
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Publication number: 20220255488Abstract: A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width-modulated switching signals (15) at a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to ascertain the carrier frequency within at least one operating range (22, 23) depending on a piece of operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) in such a way that the carrier frequency is reduced within the at least one operating range (22, 23) compared to a maximum carrier frequency operating point at which a maximum carrier frequency is specified in the operating range.Type: ApplicationFiled: July 27, 2020Publication date: August 11, 2022Applicant: Valeo Siemens eAutomotive Germany GmbHInventors: Panagiotis Mantzanas, Daniel Kübrich, Thomas Dürbaum, Alexander Bucher, Alexander Pawellek, Christian Hasenohr, Harald Hofmann
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Patent number: 9835666Abstract: 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: GrantFiled: July 24, 2015Date of Patent: December 5, 2017Assignee: NXP B.V.Inventors: Juergen Stahl, Thomas Duerbaum, Alexander Pawellek, Jens Goettle, Hans Halberstadt, Anton Blom, Frans Pansier
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Patent number: 9506969Abstract: 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: GrantFiled: January 7, 2015Date of Patent: November 29, 2016Assignee: NXP B.V.Inventors: Juergen Stahl, Jens Goettle, Thomas Duerbaum, Alexander Pawellek, Anton Blom, Hans Halberstadt, Frans Pansier
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Patent number: 9429611Abstract: 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: GrantFiled: January 13, 2012Date of Patent: August 30, 2016Assignee: NXP B.V.Inventors: Juergen Stahl, Alexander Pawellek, Markus Schmid, Thomas Duerbaum, Johann Kuebrich, Hans Halberstadt, Frans Pansier, Jens Goettle, Anton Blom
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Publication number: 20160061871Abstract: 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: ApplicationFiled: July 24, 2015Publication date: March 3, 2016Inventors: Juergen Stahl, Thomas Duerbaum, Alexander Pawellek, Jens Goettle, Hans Halberstadt, Anton Blom, Frans Pansier
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Patent number: 9119274Abstract: 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: GrantFiled: July 3, 2012Date of Patent: August 25, 2015Assignee: NXP B.V.Inventors: Alexander Pawellek, Juergen Stahl, Jens Goettle, Thomas Duerbaum, Frans Pansier, Hans Halberstadt
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Publication number: 20150212133Abstract: 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: ApplicationFiled: January 7, 2015Publication date: July 30, 2015Inventors: Juergen Stahl, Jens Goettle, Thomas Duerbaum, Alexander Pawellek, Anton Blom, Hans Halberstadt, Frans Pansier Pansier
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Publication number: 20140218048Abstract: 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: ApplicationFiled: January 13, 2012Publication date: August 7, 2014Applicant: NXP B.V.Inventors: Juergen Stahl, Alexander Pawellek, Markus Schmid, Thomas Duerbaum, Johann Kuebrich, Hans Halberstadt, Frans Pansier, Jens Gettle, Anton Blom
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Publication number: 20140210370Abstract: 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: ApplicationFiled: July 3, 2012Publication date: July 31, 2014Applicant: NXP B.V.Inventors: Alexander Pawellek, Juergen Stahl, Jens Goettle, Thomas Duerbaum, Frans Pansier, Hans Halberstadt
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Patent number: 8094466Abstract: 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: GrantFiled: March 10, 2004Date of Patent: January 10, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Thomas Duerbaum, Reinhold Elferich
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Patent number: 7915991Abstract: 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: GrantFiled: August 24, 2004Date of Patent: March 29, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Eberhard Waffenschmidt, Thomas Dürbaum
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Patent number: 7907010Abstract: 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: GrantFiled: March 25, 2004Date of Patent: March 15, 2011Assignee: NXP B.V.Inventors: Matthias Wendt, Iain Mosely, F. Javier Esguevillas, Thomas Dürbaum, Georg Sauerländer, Heinz Van Der Broeck
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Patent number: 7839132Abstract: 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: GrantFiled: November 5, 2003Date of Patent: November 23, 2010Assignee: NXP B.V.Inventors: Thomas Dürbaum, Reinhold Elferich, Tobias G. Tolle, Jeffery Olsen
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Patent number: 7719850Abstract: 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: GrantFiled: February 13, 2002Date of Patent: May 18, 2010Assignee: NXP B.V.Inventors: Thomas Duerbaum, Reinhold Elferich
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Patent number: 7602229Abstract: 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: GrantFiled: August 25, 2004Date of Patent: October 13, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Tobias Georg Tolle, Thomas Dürbaum, Georg Sauerländer, Toni Lopez
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Patent number: 7579900Abstract: 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: GrantFiled: August 9, 2004Date of Patent: August 25, 2009Assignee: NXP B.V.Inventor: Thomas Dürbaum
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Patent number: 7539029Abstract: 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: GrantFiled: July 7, 2005Date of Patent: May 26, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Peter Luerkens, Matthias Wendt, Thomas Duerbaum, Heinz Van Der Broeck
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Patent number: 7538554Abstract: 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: GrantFiled: November 24, 2004Date of Patent: May 26, 2009Assignee: Koninlijke Philips Electronics N.V.Inventors: Matthias Wendt, Thomas Dürbaum, Achim Hilgers, Rainer Kiewitt, Heiko Pelzer