Patents by Inventor Bernhard Roellgen
Bernhard Roellgen 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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Patent number: 9424973Abstract: A coil is specified which has at least four electrical conductors, wherein the electrical conductors are wound around a common winding center. Each of the at least four electrical conductors is at a constant distance from the winding center of the coil over the entire length of the coil.Type: GrantFiled: September 24, 2010Date of Patent: August 23, 2016Assignee: EPCOS AGInventors: Bernhard Roellgen, Herbert-Maurizio Cardarelli
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Publication number: 20150380150Abstract: An electrical transformer component includes a central limb having a first and a second end section and a central section, which is arranged between the first and second end sections. The component also includes an outer limb having a holding device for holding the central limb on the outer limb. At least one of the first and second end sections of the central limb is held on the holding device of the outer limb. At least two wires are wound directly onto part of the surface of the central section of the central limb.Type: ApplicationFiled: January 27, 2014Publication date: December 31, 2015Inventors: Uwe Sommer, Michael Forster, Bernhard Röllgen, Karl Stoll
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Patent number: 9019042Abstract: A high-frequency swinging choke has at least two rod cores arranged next to one another in the longitudinal direction. The rod cores each have at least one winding. The windings are connected in series.Type: GrantFiled: February 9, 2010Date of Patent: April 28, 2015Assignee: Epcos AGInventors: Bernhard Roellgen, Herbert-Maurizio Cardarelli
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Patent number: 8294452Abstract: An arrangement for measuring a current flowing in an electrical conductor includes a magnetic circuit, for coupling to the electrical conductor, the magnetic circuit has an air gap. A magnetic field-sensitive component that serves for measuring the magnetic field generated by the electrical conductor is situated between the arms of the magnetic circuit. Two control cores are arranged in the air gap of the magnetic circuit. The control cores each include a control winding for magnetically saturating the respective control core and are arranged on both sides of the electrical conductor.Type: GrantFiled: February 3, 2010Date of Patent: October 23, 2012Assignee: EPCOS AGInventors: Bernhard Roellgen, Martin Neudecker
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Publication number: 20120146756Abstract: The invention relates to a current compensated inductor comprising a single piece annularly closed ferrite core. The ferrite core comprises at least two wire coils each comprising a flat wire wound on edge and disposed, for example, without a coil bobbin and at a distance from each other on the ferrite core.Type: ApplicationFiled: July 27, 2010Publication date: June 14, 2012Applicant: EPCOS AGInventors: Bernhard Roellgen, Karl Stoll
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Publication number: 20120054348Abstract: The method provided is for the initiation of a computer session which is shared by two computers that are connected via internet behind NAT routers so that there is no additional relay server necessary. In contrast to conventional methods which can only connect two computers behind NAT routers via a relay server, there is no need to charge users for the incurring additional traffic. The invention regards a method for the initiation of a computer session which is shared by two computers with the following steps: Manual or automatic start on two computers through a communication software that can exchange arbitrary data via a mutually used rendezvous server. Discovery of the local IP address and of a free port and discovery of the global IP address and port on each side. Transmission of the discovered data to the respective peer via the rendezvous server. Hole punching into the respective opposite NAT. Start of a packet-oriented bidirectional transmission protocol with automatic repeat request.Type: ApplicationFiled: August 30, 2010Publication date: March 1, 2012Inventor: Clemens Karl Bernhard Röllgen
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Publication number: 20120007695Abstract: A high-frequency swinging choke has at least two rod cores arranged next to one another in the longitudinal direction. The rod cores each have at least one winding. The windings are connected in series.Type: ApplicationFiled: February 9, 2010Publication date: January 12, 2012Applicant: EPCOS AGInventors: Bernhard Roellgen, Herbert-Maurizio Cardarelli
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Publication number: 20110068886Abstract: A coil is specified which has at least four electrical conductors, wherein the electrical conductors are wound around a common winding center. Each of the at least four electrical conductors is at a constant distance from the winding center of the coil over the entire length of the coil.Type: ApplicationFiled: September 24, 2010Publication date: March 24, 2011Inventors: Bernhard Roellgen, Herbert-Maurizio Cardarelli
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Patent number: 7911198Abstract: An arrangement and a method are used for measuring current flowing in an electrical conductor with a magnetic circuit that has an air gap for coupling to the electrical conductor. The air gap of the magnetic circuit contains a magnetic-field-sensitive component that is used to measure the magnetic field generated by the electrical conductor, wherein, the air gap of the magnetic circuit contains a control core, wherein the control core has a control winding for the magnetic saturation of the control core. In the vicinity of the magnetic-field-sensitive component there are several additional elements that are suitable for conducting interfering magnetic fields in the surroundings of the magnetic-field-sensitive component independent of the control cores.Type: GrantFiled: February 2, 2010Date of Patent: March 22, 2011Assignee: EPCOS AGInventors: Bernhard Roellgen, Martin Neudecker
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Patent number: 7911197Abstract: The invention relates to an arrangement for measurement of a current flowing in an electrical conductor having a magnetic circuit, for coupling to the electrical conductor, wherein the magnetic circuit has an air gap. A magnetic-field-sensitive component is located in the air gap in the magnetic circuit and is used to measure the magnetic field produced by the electrical conductor. Two control cores are arranged in the air gap in the magnetic circuit, wherein the control cores each have a control winding for magnetic saturation of the respective control core. The magnetic-field-sensitive component is arranged between the control cores and one or more additional elements are located in the vicinity of the magnetic-field-sensitive component, and are suitable for guidance of disturbing magnetic fields in the vicinity of the magnetic-field-sensitive component, independent of the control cores.Type: GrantFiled: November 30, 2009Date of Patent: March 22, 2011Assignee: EPCOS AGInventor: Bernhard Roellgen
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Publication number: 20100188072Abstract: An arrangement for measuring a current flowing in an electrical conductor includes a magnetic circuit, for coupling to the electrical conductor, the magnetic circuit has an air gap. A magnetic field-sensitive component that serves for measuring the magnetic field generated by the electrical conductor is situated between the arms of the magnetic circuit. Two control cores are arranged in the air gap of the magnetic circuit. The control cores each include a control winding for magnetically saturating the respective control core and are arranged on both sides of the electrical conductor.Type: ApplicationFiled: February 3, 2010Publication date: July 29, 2010Inventors: Bernhard Roellgen, Martin Neudecker
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Publication number: 20100181991Abstract: An arrangement and a method are used for measuring current flowing in an electrical conductor with a magnetic circuit that has an air gap for coupling to the electrical conductor. The air gap of the magnetic circuit contains a magnetic-field-sensitive component that is used to measure the magnetic field generated by the electrical conductor, wherein, the air gap of the magnetic circuit contains a control core, wherein the control core has a control winding for the magnetic saturation of the control core. In the vicinity of the magnetic-field-sensitive component there are several additional elements that are suitable for conducting interfering magnetic fields in the surroundings of the magnetic-field-sensitive component independent of the control cores.Type: ApplicationFiled: February 2, 2010Publication date: July 22, 2010Inventors: Bernhard Roellgen, Martin Neudecker
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Publication number: 20100134093Abstract: The invention relates to an arrangement for measurement of a current flowing in an electrical conductor having a magnetic circuit, for coupling to the electrical conductor, wherein the magnetic circuit has an air gap. A magnetic-field-sensitive component is located in the air gap in the magnetic circuit and is used to measure the magnetic field produced by the electrical conductor. Two control cores are arranged in the air gap in the magnetic circuit, wherein the control cores each have a control winding for magnetic saturation of the respective control core. The magnetic-field-sensitive component is arranged between the control cores and one or more additional elements are located in the vicinity of the magnetic-field-sensitive component, and are suitable for guidance of disturbing magnetic fields in the vicinity of the magnetic-field-sensitive component, independent of the control cores.Type: ApplicationFiled: November 30, 2009Publication date: June 3, 2010Inventor: Bernhard Roellgen
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Patent number: 7579825Abstract: A device for measuring a current flowing in an electrical conductor that has a magnetic circuit coupled to an electrical conductor. The magnetic circuit has an air gap and a magnetic field sensitive component disposed in the air gap to measure a magnetic field generated by the electrical conductor. At least one control core with a control winding is included to control an effective length of the air gap when the control winding is energized. The device also has a compensation coil to magnetize the magnetic circuit.Type: GrantFiled: July 13, 2007Date of Patent: August 25, 2009Assignees: Lisa Dräxlmaier GmbH, EPCOS AGInventors: Christian Hausperger, Edgar Kindler, Bernhard Röllgen
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Patent number: 6741156Abstract: A rod-core transformer for use as a starting transformer in the cap of a high-pressure discharge lamp for a motor vehicle headlight. The rod-core transformer has at least two cores (2, 3) which are in the form of rods and are arranged alongside one another, and on each of which a multilayer secondary winding (4, 5) is wound, with the respective layers (4a, 4b, 4c, 4d) and (5a, 5b, 5c, 5d) being connected in parallel and being arranged one above the other without any offset. Furthermore the secondary windings (4, 5) are electrically conductively connected to one another, with their total resistance being at most 2&OHgr;. The transformer is particularly highly suitable for use as a starting transformer for high-pressure discharge lamps with a low operating voltage, for example halogen metal-vapor high-pressure discharge lamps which do not contain mercury.Type: GrantFiled: February 10, 2003Date of Patent: May 25, 2004Assignee: Patent-Treuhand-Gelleschaft fur elektrische Gluhlampen mbHInventors: Matthias Burkhardt, Herbert Maurizio Cardarelli, Bernhard Roellgen
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Publication number: 20030151375Abstract: The invention relates to a rod-core transformer for use as a starting transformer in the cap of a high-pressure discharge lamp for a motor vehicle headlight. According to the invention, the rod-core transformer has at least two cores (2, 3) which are in the form of rods and are arranged alongside one another, and on each of which a multilayer secondary winding (4, 5) is wound, with the respective layers (4a, 4b, 4c, 4d) and (5a, 5b, 5c, 5d) being connected in parallel and being arranged one above the other without any offset. Furthermore the secondary windings (4, 5) are electrically conductively connected to one another, with their total resistance being at most 2 &OHgr;. The transformer according to the invention is particularly highly suitable for use as a starting transformer for high-pressure discharge lamps with a low operating voltage, for example halogen metal-vapour high-pressure discharge lamps which do not contain mercury.Type: ApplicationFiled: February 10, 2003Publication date: August 14, 2003Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBHInventors: Matthias Burkhardt, Herbert Maurizio Cardarelli, Bernhard Roellgen