Patents by Inventor Hans-Jurgen Kollar
Hans-Jurgen Kollar 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: 11991868Abstract: An electrical appliance that can be fastened to a support element, in particular a wall, includes a heat sink, circuit boards, and a housing. The circuit boards are fastened to the heat sink in each case and the heat sink is able to be fastened or is fastened to the support element. The housing surrounds the circuit boards and is fastened to the heat sink.Type: GrantFiled: February 15, 2019Date of Patent: May 21, 2024Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Martin Schörner, Joachim Nikola, Hans Jürgen Kollar
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Publication number: 20230396463Abstract: In a system and method of operating a system that includes a controller and a first bus participant and a successor, the bus participant and successor each has a circuit arrangement arranged between an output and an input, a first resistor is arranged between the output and the supply voltage terminal, a second resistor is arranged between the input and a ground terminal, a third resistor can be arranged between the input and the supply voltage terminal by a first controllable semiconductor switch, and a fourth resistor can be arranged between the output and the supply voltage terminal by a second controllable semiconductor switch.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventor: Hans Jürgen KOLLAR
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Patent number: 11824531Abstract: In a switching device and a system for converting a differential input signal into a ground-referenced output signal using a control signal, error states are detected, and detected error states lead to the deactivation of the ground-referenced output signal and are indicated on the control signal in addition.Type: GrantFiled: February 27, 2020Date of Patent: November 21, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Benjamin Norenburg, Christian Senft, Sebastian Richter, Hans Jürgen Kollar, Marco Mader
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Patent number: 11743072Abstract: In a system and method of operating a system that includes a controller and a first bus participant and a successor, the bus participant and successor each has a circuit arrangement arranged between an output and an input, a first resistor is arranged between the output and the supply voltage terminal, a second resistor is arranged between the input and a ground terminal, a third resistor can be arranged between the input and the supply voltage terminal by a first controllable semiconductor switch, and a fourth resistor can be arranged between the output and the supply voltage terminal by a second controllable semiconductor switch.Type: GrantFiled: September 9, 2020Date of Patent: August 29, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventor: Hans Jürgen Kollar
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Patent number: 11722076Abstract: In a drive system and method for operating a drive system, in which the drive systems includes an electromagnetically operable brake, an electric motor, e.g., a three-phase motor, and an electronic circuit, the brake has an energizable coil, e.g., a brake coil, the electronic circuit has a rectifier, an upper controllable semiconductor switch, a freewheeling diode, and a varistor, a direct voltage provided by a rectifier is able to be made available by closing or by a pulse-width-modulated actuation of an upper controllable semiconductor switch of the coil, and by opening the upper controllable semiconductor switch, a current driven by the coil in the de-excitation of the coil is freewheeling and/or flowing through the freewheeling diode and the varistor or through a component connected in parallel with the varistor.Type: GrantFiled: January 13, 2020Date of Patent: August 8, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Timo Hufnagel, Hans Jürgen Kollar, Christopher Reichert
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Publication number: 20220345329Abstract: In a system and method of operating a system that includes a controller and a first bus participant and a successor, the bus participant and successor each has a circuit arrangement arranged between an output and an input, a first resistor is arranged between the output and the supply voltage terminal, a second resistor is arranged between the input and a ground terminal, a third resistor can be arranged between the input and the supply voltage terminal by a first controllable semiconductor switch, and a fourth resistor can be arranged between the output and the supply voltage terminal by a second controllable semiconductor switch.Type: ApplicationFiled: September 9, 2020Publication date: October 27, 2022Applicant: SEW-EURODRIVE GMBH & CO. KGInventor: Hans Jürgen KOLLAR
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Publication number: 20220200597Abstract: In a switching device and a system for converting a differential input signal into a ground-referenced output signal using a control signal, error states are detected, and detected error states lead to the deactivation of the ground-referenced output signal and are indicated on the control signal in addition.Type: ApplicationFiled: February 27, 2020Publication date: June 23, 2022Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Benjamin NORENBURG, Christian SENFT, Sebastian RICHTER, Hans Jürgen KOLLAR, Marco MADER
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Publication number: 20220131484Abstract: In a drive system and method for operating a drive system, in which the drive systems includes an electromagnetically operable brake, an electric motor, e.g., a three-phase motor, and an electronic circuit, the brake has an energizable coil, e.g., a brake coil, the electronic circuit has a rectifier, an upper controllable semiconductor switch, a freewheeling diode, and a varistor, a direct voltage provided by a rectifier is able to be made available by closing or by a pulse-width-modulated actuation of an upper controllable semiconductor switch of the coil, and by opening the upper controllable semiconductor switch, a current driven by the coil in the de-excitation of the coil is freewheeling and/or flowing through the freewheeling diode and the varistor or through a component connected in parallel with the varistor.Type: ApplicationFiled: January 13, 2020Publication date: April 28, 2022Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Timo HUFNAGEL, Hans Jürgen KOLLAR, Christopher REICHERT
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Publication number: 20200413564Abstract: An electrical appliance that can be fastened to a support element, in particular a wall, includes a heat sink, circuit boards, and a housing. The circuit boards are fastened to the heat sink in each case and the heat sink is able to be fastened or is fastened to the support element. The housing surrounds the circuit boards and is fastened to the heat sink.Type: ApplicationFiled: February 15, 2019Publication date: December 31, 2020Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Martin SCHÖRNER, Joachim NIKOLA, Hans Jürgen KOLLAR
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Patent number: 10236787Abstract: In a device for operating a rectifier, in particular a semi-controlled rectifier bridge, and a method for operating a rectifier, in particular a power converter, the rectifier is supplied from system phases, in particular from a three-phase AC voltage system, and supplies a unipolar voltage on the output side, the rectifier including controllable switches, in particular semiconductor switches such as thyristors, etc., a respective system phase supplying a respective current source, the current generated in each case being used as trigger signal for the controllable switch allocated to the respective system phase as a function of the state of a controllable switch unit.Type: GrantFiled: April 13, 2015Date of Patent: March 19, 2019Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Norbert Hettel, Hans Jürgen Kollar
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Patent number: 10076052Abstract: In an electrical device, in particular a converter, and a method for producing an electrical device having a circuit board and a housing part, a connecting part is fitted into the circuit board, in particular by soldering. The connecting part has a spacer section and a connection element. The circuit board is separated from the housing part with the aid of the spacer section. The connection element has a threaded segment. The connection element may be connected to at least one circuit trace on the circuit board in an electrically conductive manner.Type: GrantFiled: March 6, 2015Date of Patent: September 11, 2018Assignee: SEW-EURODRIVE GmbH & Co. KGInventors: Joachim Nikola, Hans Jürgen Kollar, Dirk Momann
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Publication number: 20170118857Abstract: In an electrical device, in particular a converter, and a method for producing an electrical device having a circuit board and a housing part, a connecting part is fitted into the circuit board, in particular by soldering. The connecting part has a spacer section and a connection element. The circuit board is separated from the housing part with the aid of the spacer section. The connection element has a threaded segment. The connection element may be connected to at least one circuit trace on the circuit board in an electrically conductive manner.Type: ApplicationFiled: March 6, 2015Publication date: April 27, 2017Inventors: Joachim NIKOLA, Hans Jürgen KOLLAR, Dirk MOMANN
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Publication number: 20170047858Abstract: In a device for operating a rectifier, in particular a semi-controlled rectifier bridge, and a method for operating a rectifier, in particular a power converter, the rectifier is supplied from system phases, in particular from a three-phase AC voltage system, and supplies a unipolar voltage on the output side, the rectifier including controllable switches, in particular semiconductor switches such as thyristors, etc., a respective system phase supplying a respective current source, the current generated in each case being used as trigger signal for the controllable switch allocated to the respective system phase as a function of the state of a controllable switch unit.Type: ApplicationFiled: April 13, 2015Publication date: February 16, 2017Inventors: Norbert HETTEL, Hans Jürgen KOLLAR
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Patent number: 8912738Abstract: A drive system and method for operating a drive system, including an electromotor, inverter, energy store, the electromotor being able to be supplied from the inverter, which is supplyable from the energy store, a current able to be controlled by a switch being supplyable to at least one stator winding of the electromotor, which is supplied from an electrical energy source that differs from the energy store.Type: GrantFiled: March 17, 2010Date of Patent: December 16, 2014Assignee: Sew-Eurodrive GmbH & Co. KGInventors: Jochen Mahlein, Hans Jürgen Kollar, Marek Lewandowski, Matthias Hauck, Leobald Podbielski, Josef Schmidt
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Publication number: 20120154191Abstract: A method for processing a measured-value signal representing a value, determined in analog form, for the output current of a converter, and device for carrying out the method, the measured-value signals acquired by a sensor, especially including a shunt resistor, being supplied to a respective processing channel that has at least one delta-sigma modulator.Type: ApplicationFiled: August 11, 2010Publication date: June 21, 2012Inventors: Thomas Knapp, Hans Jürgen Kollar, Wolfgang Hammel, Ulrich Neumayer
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Publication number: 20120019174Abstract: A drive system and method for operating a drive system, including an electromotor, inverter, energy store, the electromotor being able to be supplied from the inverter, which is supplyable from the energy store, a current able to be controlled by a switch being supplyable to at least one stator winding of the electromotor, which is supplied from an electrical energy source that differs from the energy store.Type: ApplicationFiled: March 17, 2010Publication date: January 26, 2012Inventors: Jochen Mahlein, Hans Jürgen Kollar, Marek Lewandowski, Matthias Hauck, Leobald Podbielski, Josef Schmidt
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Patent number: 7057869Abstract: A method and a device for protecting at least one consumer against overvoltages when working with a method for non-contact transmission of electric power from one or more medium-frequency current sources, whose frequencies may have deviations around medium frequency fM, to the at least one moving consumer via one or more transmission lines and transformer heads, allocated to the consumers, having a downstream matching controller for adjusting the power received from the transmission line; a transmission line is fed from a medium-frequency current source with a medium-frequency current that is constant in its effective value during the power transmission; the respective consumer is supplied with energy by at least one matching controller having at least one feed-in; one or more fed currents are rectified in each instance in a rectifier, smoothed in each instance by a link-circuit reactor and brought together; with the aid of a switch, the link-circuit current, brought together in each instance, is either supplType: GrantFiled: November 10, 2001Date of Patent: June 6, 2006Assignee: Sew-Eurodrive GmbH & Co.Inventor: Hans-Jürgen Kollar
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Publication number: 20040022002Abstract: A method and a device for protecting at least one consumer against overvoltages when working with a method for non-contact transmission of electric power from one or more medium-frequency current sources, whose frequencies may have deviations around medium frequency fM, to the at least one moving consumer via one or more transmission lines and transformer heads, allocated to the consumers, having a downstream matching controller for adjusting the power received from the transmission line; a transmission line is fed from a medium-frequency current source with a medium-frequency current that is constant in its effective value during the power transmission; the respective consumer is supplied with energy by at least one matching controller having at least one feed-in; one or more fed currents are rectified in each instance in a rectifier, smoothed in each instance by a link-circuit reactor and brought together; with the aid of a switch, the link-circuit current, brought together in each instance, is either supplType: ApplicationFiled: May 30, 2003Publication date: February 5, 2004Inventor: Hans-Jurgen Kollar