Patents by Inventor Jörg Dorn
Jörg Dorn 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: 8183874Abstract: A method and a device for converting an electrical current include at least one phase module having an AC voltage connection and at least one DC voltage connection. A phase module branch is disposed between each DC voltage connection and the AC voltage connection. Each phase module branch includes a series circuit of submodules, each having a capacitor and at least one power semiconductor. The apparatus can establish aging of an energy storage device in a simple manner by using a capacitor diagnosis device for a time-dependent determination of the capacitance of each capacitor.Type: GrantFiled: December 8, 2006Date of Patent: May 22, 2012Assignee: Siemens AktiengesellschaftInventors: Mike Dommaschk, Jörg Dorn, Ingo Euler, Jörg Lang, Quoc-Buu Tu, Klaus Würflinger
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Patent number: 8164868Abstract: An apparatus has power semiconductor modules, which are connected to one another via connection devices so as to form a series circuit. A short-circuiting device for short-circuiting the respective power semiconductor module is assigned to each power semiconductor module. The apparatus has a reliable and at the same time cost-effective short-circuiting device. It is proposed that the short-circuiting device is a pyrotechnical/mechanical element, which has a detonation charge and a tripping device, which can be displaced by the detonation charge.Type: GrantFiled: February 23, 2006Date of Patent: April 24, 2012Assignee: Siemens AktiengesellschaftInventors: Mike Dommaschk, Jörg Dorn, Johann Holweg, Jörg Lang, Axel Preidel, Klaus Würflinger
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Patent number: 8149555Abstract: In order to provide a power semiconductor module for power distribution and transmission, having a power semiconductor circuit which is connected via connecting lines to an energy storage device, which limits the current amplitudes that occur in the electrical fault and effectively protects the power electronics, it is proposed that the connecting lines have a weak point which breaks when the current load is above a threshold value, with the connecting lines furthermore having a resistance which is connected in parallel with the weak point.Type: GrantFiled: September 6, 2006Date of Patent: April 3, 2012Assignee: Siemens AktiengesellschaftInventor: Jörg Dorn
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Patent number: 8144489Abstract: A converter has at least one phase module, an AC voltage terminal and a DC voltage terminal. A phase module branch is formed between each DC voltage terminal and each AC voltage terminal. Each phase module branch has a series circuit containing submodules which each have a capacitor, a power semiconductor, and submodule sensors for detecting energy stored in the capacitor and with a regulation device for regulating the apparatus in dependence on energy values and predetermined desired values. Therefore unbalanced loading of the energy storage units is avoided. The regulation device has a summation unit for summing the energy values while obtaining branch energy actual values and a device for calculating circuit current desired values in dependence on the branch energy actual values. The regulation device compensates for imbalances in the branch energy actual values in dependence on the circuit current desired values.Type: GrantFiled: December 8, 2006Date of Patent: March 27, 2012Assignee: Siemens AktiengesellschaftInventors: Mike Dommaschk, Jörg Dorn, Ingo Euler, Jörg Lang, Quoc-Buu Tu, Klaus Würflinger
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Patent number: 8120888Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.Type: GrantFiled: December 21, 2006Date of Patent: February 21, 2012Assignee: Siemens AktiengeselschaftInventors: Jörg Dorn, Jörg Hafermaas, Johann Holweg, Thomas Kübel, Herbert Müller
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Patent number: 8081486Abstract: An electronic module has at least one first and one second connecting terminal and power semiconductors which are connected by way of connecting conductors, diodes which are each connected in parallel with the power semiconductors and at least one capacitor, likewise connected to the power semiconductors by connecting conductors, which is used, in the event of a fault, to ensure a high degree of availability and operational reliability of a converter; the connecting conductors of the novel device have at least two sections which run parallel to one another and at least one of which can be deformed. The sections are used to guide the current flowing in the electronic module in the opposite direction and are dimensioned such that, when a threshold current is exceeded, they form a conductive connection between the connecting terminals and bridge the power semiconductors and each capacitor.Type: GrantFiled: June 23, 2005Date of Patent: December 20, 2011Assignee: Siemens AktiengesellschaftInventor: Jörg Dorn
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Publication number: 20110235375Abstract: A device has a converter which is connected to a direct voltage circuit through a short-circuit protection unit. The short-circuit protection unit is arranged at least partially in the direct voltage circuit and is provided in the direct voltage circuit to suppress short-circuit current flowing through the converter. The device contains one or more controllable power semiconductors, wherein a protection element is arranged in parallel to at least one of the controllable power semiconductors. The device prevents the negative effects of a short circuit occurring in the direct voltage network in a particularly reliable manner. For this purpose, the protection element is an energy store.Type: ApplicationFiled: September 5, 2008Publication date: September 29, 2011Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Mike Dommaschk, Jörg Dorn, Ingo Euler, Franz Karlecik-Maier, Jörg Lang, Quoc-Buu Tu, Carsten Wittstock, Klaus Würflinger
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Publication number: 20110226740Abstract: The vacuum switch is compact, requires little effort, and provides a reliable current path having a high current-carrying capacity between the terminals of the vacuum switch, particularly at high switch-on speeds. The vacuum switch has a vacuum chamber, in which a vacuum is present and in which a switching contact is arranged. The switching contact includes a fixed contact piece firmly connected to the vacuum chamber and in electrical contact with a fixed contact terminal, and a moving contact piece movably guided relative to the fixed contact piece. The moving contact piece is at a distance to the fixed contact piece in a disconnect position and contacts the latter in a contact position. A drive unit produces a drive movement. A switching mechanism is connected to the drive unit and the moving contact piece and includes a conductor section that is electrically conducting up to the moving contact piece.Type: ApplicationFiled: November 10, 2009Publication date: September 22, 2011Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Mathias Anheuer, Joerg Dorn, Andreas Fartuschnja, Thomas Kuebel, Peter Lell, Andreas Zenkner
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Publication number: 20110205771Abstract: A closed-loop control method for at least two converters in an energy transmission and/or distribution system. The converters may be controlled either as rectifier or inverter and they are connected to each other by a DC link. A measured DC voltage and a measured DC current is measured at each converter and transmitted to a rectifier regulator for regulating the corresponding rectifier or to an inverter regulator for regulating the corresponding inverter. Each rectifier regulator and each inverter regulator gives the difference between a given set DC voltage and the relevant received measured DC voltage to give a differential DC voltage and the difference between a set DC current and the corresponding received measured DC current to give a differential DC current.Type: ApplicationFiled: June 17, 2008Publication date: August 25, 2011Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Tobias Bernhard, Mike Dommaschk, Jörg Dorn, Ingo Euler, Franz Karlecik-Maier, Jörg Lang, Jürgen Rittiger, John-William Strauss, Quoc-Buu Tu, Oliver Venjakob, Carsten Wittstock, Klaus Würflinger
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Patent number: 7969755Abstract: A device for the transmission of electrical energy includes at least one current converter. Each current converter has phase elements with respective arrangements of circuit elements that comprise at least two switchable power semiconductors each and at least two free-wheeling diodes, each connected in parallel thereto, and energy storing means. The transfer properties in or between power distribution networks are improved with the novel device. The device is provided with means for controlling the current converter in such a manner that the zero crossing, the amplitude and/or the instantaneous values of an alternating current of a transfer network that can be connected to the device and/or the direct current of a direct current line that connects at least one current converter to a direct current source, and/or the direct voltage and the direct current of at least three interconnected current converters can be controlled.Type: GrantFiled: September 9, 2005Date of Patent: June 28, 2011Assignee: Siemens AktiengesellschaftInventors: Mark Davies, Jörg Dorn, Hartmut Huang, Dietmar Retzmann
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Patent number: 7969238Abstract: A cost-effective device for influencing the transmission of electrical energy of an alternating voltage line with a plurality of phases has phase modules, which each have an alternating voltage terminal for connecting to a phase of the alternating voltage line and two connecting terminals. A phase module branch extends between each connecting terminal and each alternating voltage terminal. The phase module branch is formed of a series connection of sub-modules, each having a power semiconductor circuit and an energy accumulator connected in parallel to the power semiconductor circuit. The connecting terminals are connected to one another. The power semiconductor circuit is equipped with power semiconductors that can be switched off and are connected to each other in a half bridge.Type: GrantFiled: April 2, 2008Date of Patent: June 28, 2011Assignee: Siemens AktiengesellschaftInventors: Tobias Bernhard, Mike Dommaschk, Jörg Dorn, Ingo Euler, Franz Karlecik-Maier, Jörg Lang, John-William Strauss, Quoc-Buu Tu, Carsten Wittstock, Klaus Würflinger
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Patent number: 7960871Abstract: A device for converting an electrical current includes at least one phase module with an AC connection and at least one DC connection. A phase module branch is provided between each DC connection and each AC connection. Each phase module branch has a series connection made of sub-modules, which in turn include an energy accumulator each and at least one power semiconductor. Measuring sensors provide actual values and there are provided control means connected to the measuring sensors. The control can be easily adapted to any arbitrary number of sub-modules in each phase module branch. The control means include a current regulating unit and control units associated with a phase module branch each, wherein the current regulating unit is configured to provide branch target values for the control units. The control units are designed to produce control signals for the sub-modules.Type: GrantFiled: December 8, 2006Date of Patent: June 14, 2011Assignee: Siemens AktiengesellschaftInventors: Mike Dommaschk, Jörg Dorn, Ingo Euler, Jörg Lang, Quoc-Buu Tu, Klaus Würflinger
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Patent number: 7936548Abstract: In order to form an overcurrent switching apparatus for medium-voltage or high-voltage applications with a current detection device for changing over a contact system associated with them from a first state to a second state in the event of a threshold current being exceeded, the switching properties of which overcurrent switching apparatus are precise, an actuating device is disposed downstream of the current detection device, which is in a first current branch, via a coupling device. The actuating device is configured to change over the contact system, which is in a second current branch, from the first to the second state.Type: GrantFiled: February 23, 2006Date of Patent: May 3, 2011Assignee: Siemens AktiengesellschaftInventor: Jörg Dorn
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Publication number: 20110057762Abstract: A short-circuit device for the electrical bypass of an electric module has a contact arrangement, which is disposed in a switching chamber. The contact arrangement has an open circuit-breaker setting, in which a current flow via the contact arrangement is interrupted, and a contact setting, in which a current flow via the contact arrangement is made possible. A pyrotechnic drive for transferring the contact arrangement from its circuit breaker setting into its contact setting, enables cost-effective, rapid bypass or short-circuiting, and the provision of a large current carrying capacity simultaneously. The switching chamber is a vacuum switching chamber in which a vacuum prevails.Type: ApplicationFiled: January 6, 2009Publication date: March 10, 2011Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Jens Burger, Jörg Dorn, Thomas Kübel, Roman Renz, Andreas Stelzer, Andreas Zenkner
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Publication number: 20100321038Abstract: A method and a device for converting an electrical current include at least one phase module having an AC voltage connection and at least one DC voltage connection. A phase module branch is disposed between each DC voltage connection and the AC voltage connection. Each phase module branch includes a series circuit of submodules, each having a capacitor and at least one power semiconductor. The apparatus can establish aging of an energy storage device in a simple manner by using a capacitor diagnosis device for a time-dependent determination of the capacitance of each capacitor.Type: ApplicationFiled: December 8, 2006Publication date: December 23, 2010Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Mike Dommaschk, Jörg Dorn, Ingo Euler, Jörg Lang, Quoc-Buu Tu, Klaus Würflinger
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Publication number: 20100265744Abstract: A power semiconductor module includes at least two power semiconductor units that are interconnected and that have controllable semiconductors. Each semiconductor unit is associated with a cooling plate to which the semiconductors are connected in a heat-conducting manner. The object is to provide a semiconductor module that is compact and cost-effective and at the same time explosion-proof. The power semiconductor module of the invention has a module housing which houses the power semiconductor units. The cooling plates form at least part of the module housing.Type: ApplicationFiled: November 13, 2007Publication date: October 21, 2010Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Joerg Dorn, Thomas Kuebel
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Publication number: 20100127769Abstract: A cost-effective device for influencing the transmission of electrical energy of an alternating voltage line with a plurality of phases has phase modules, which each have an alternating voltage terminal for connecting to a phase of the alternating voltage line and two connecting terminals. A phase module branch extends between each connecting terminal and each alternating voltage terminal. The phase module branch is formed of a series connection of sub-modules, each having a power semiconductor circuit and an energy accumulator connected in parallel to the power semiconductor circuit. The connecting terminals are connected to one another. The power semiconductor circuit is equipped with power semiconductors that can be switched off and are connected to each other in a half bridge.Type: ApplicationFiled: April 2, 2008Publication date: May 27, 2010Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Tobias Bernhard, Mike Dommaschk, Jörg Dorn, Ingo Euler, Franz Karlecik-Maier, Jörg Lang, John-William Strauss, Quoc-Buu Tu, Carsten Wittstock, Klaus Würfinger
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Publication number: 20100118578Abstract: A device for converting an electrical current includes at least one phase module with an AC voltage connection and at least one DC voltage connection, a phase module branch disposed between each DC voltage connection and the AC voltage connection and each phase module branch having a series circuit of submodules, each of which has an energy accumulator and at least one power semiconductor and closed-loop control means for regulating the device. The device can regulate circulating currents in a targeted manner by providing each phase module with at least one inductance and configuring the closed-loop control means to regulate a circulating current that flows through the phase modules.Type: ApplicationFiled: December 8, 2006Publication date: May 13, 2010Applicant: Siemens AktiengesellschaftInventors: Mike Dommaschk, Jörg Dorn, Ingo Euler, Jörg Lang, Dag Sörangr, Quocc-Buu Tu, Klaus Würflinger
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Publication number: 20100118453Abstract: A device (1) has a series circuit of submodules with a power semiconductor circuit and an energy accumulator connected in parallel with the power semiconductor circuit. Each submodule is associated with a short circuit device for shorting the submodule. The short circuit device is a vacuum switching tube. The device is cost-effective and at the same time enables safe bridging of a defective submodule.Type: ApplicationFiled: April 2, 2008Publication date: May 13, 2010Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Jörg Dorn, Werner Hartmann
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Patent number: 7696528Abstract: A thyristor has a radiation-sensitive breakdown structure (20), a gate electrode (92) that is placed at a distance from the latter in a lateral direction and an ignition stage structure having at least one ignition stage (51, 91) equipped with an n-doped auxiliary emitter (51), which forms a pn-junction (55) together with the p-doped base (6), the thyristor being both electrically and radiation-ignited. In a method for contacting a thyristor that can be ignited by radiation with a gate electrode (92), a contact ram (200) that is adapted to the geometry of the gate electrode (92) is pressed against the thyristor. In a method for monitoring the ignition of a thyristor that is ignited by incident radiation, the electric voltage that is applied to the gate electrode (92) or the electrically conductive electrode (105, 201) is monitored.Type: GrantFiled: November 21, 2006Date of Patent: April 13, 2010Assignee: Infineon Technologies AGInventors: Uwe Kellner-Werdehausen, Franz-Josef Niedernostheide, Hans-Joachim Schulze, Jörg Dorn