Patents by Inventor Martin Buerkert
Martin Buerkert 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: 11977400Abstract: An analog circuit arrangement (1) to variably set a voltage Uout, within defined voltage limits, has a non-inverting adder (10) with a positive input (11). A voltage divider (20), with at least a first stage (21) and a second stage (22), is connected to the positive input (11) of the adder (10). At least one stage has a parallel circuit of n resistors (R1, R2, . . . , Rn) that are each connected in series in a conduction path (L1, L2, . . . , Ln) to an overcurrent protection device (F1, F2, . . . , Fn). At least one device (30) actively changes one or more of the overcurrent protection devices (F1, F2, . . . , Fn) into a state that interrupts the respective affected conduction path (L1, L2, . . . , Ln).Type: GrantFiled: May 14, 2020Date of Patent: May 7, 2024Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Thomas Kilian, Sebastian Schroth, Fabian Schneider, Georg Wiedmann
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Patent number: 11962218Abstract: An electrical machine including a stator, a rotor and a bearing arrangement having a first bearing and a second bearing on opposite sides of the stator as well as a shielding arrangement comprising a first shielding unit and a second shielding unit. The rotor is rotatably supported around a rotation axis by means of bearings. The shielding units are electrically conductive and comprise a ring part in each case that extends originating from a radial inner end to a radial outer end away from the rotation axis. Preferably each shielding unit has a circumferential part on its radial outer end that extends in a continuous ring-shaped manner around rotation axis and is arranged in overlapping manner with the adjacent axial end of stator winding in axial direction. The circumferential parts are preferably completely closed, whereas the ring parts can comprise through holes.Type: GrantFiled: February 11, 2022Date of Patent: April 16, 2024Assignee: EBM-PAPST MULFINGEN GMBH & CO. KGInventors: Martin Buerkert, Rainer Mueller, Jochen Haefner, Sebastian Schroth
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Patent number: 11831266Abstract: A system (1) has a control device (10) with central electronics (11) designed for connection and operation of differently coded electric motors (En), with different motor characteristics (Mn) and/or power classes (Ln), to a device connection (12) of the control device (10). The at least one electric motor (En) is selectable from a number (n) of electric motor (En), that can be connected as intended, has a coding element (Kn). The central electronics (11) have a coding capture device (2) to recognize, via coding element (n), the motor characteristics (Mn) and/or the power class (Ln) of the respective currently connected electric motor (En).Type: GrantFiled: April 21, 2020Date of Patent: November 28, 2023Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Steffen Kammleiter, Sebastian Schroth, Alex Schneider, Marco Weckert
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Patent number: 11811270Abstract: A rotating field machine, in particular an electric motor with a stator and a rotor, is configured with a motor control for controlling the rotation and the rotational speed n of the rotor of the rotating field machine, wherein the motor control integrally includes an oscillation sensor system in order to acquire actual measurement values of oscillations of the rotating field machine depending on the rotational speed n.Type: GrantFiled: March 4, 2020Date of Patent: November 7, 2023Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Hartmut Messerschmidt, Christian Antonius Knipp
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Publication number: 20230044384Abstract: A modular control unit (100) is adaptable, in terms of interface functions, for an electric motor selected from a predetermined number i of electric motors, in particular electric motors of the same power class. The control unit (100) has at least two printed circuit boards (L1, L2), selected from a set of N different printed circuit boards (L1, L2, . . . , LN). Interface functions, electrical components, electronic components or control units for the operation of the electric motor are located on the printed circuit boards.Type: ApplicationFiled: August 4, 2022Publication date: February 9, 2023Inventors: Martin BÜRKERT, Günter HAAS, Thomas RUPP, Daniel KÖNIG, Andreas BADER
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Patent number: 11489809Abstract: A dynamically addressable master-slave system and a method for dynamically addressing slave units includes a master unit and a plurality of slave units, such that the slave units are interconnected with the master unit via a bus system. The respective network addresses of the slave units are assigned to the respective serial numbers of these slave units in a table in the master unit according to the position thereof in the system according to a determined order. Upon replacement of slave units, a list of serial numbers of the units to be replaced is transferred to the master unit in the sequence of the acquisition of the serial numbers, which master unit replaces these serial numbers in the table with the serial numbers of the replaced slave units transmitted to the master unit.Type: GrantFiled: July 25, 2018Date of Patent: November 1, 2022Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Helmut Lipp, Thomas Sauer, Günter Haas, Markus Humm, Marco Weckert
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Publication number: 20220255394Abstract: An electrical machine including a stator, a rotor and a bearing arrangement having a first bearing and a second bearing on opposite sides of the stator as well as a shielding arrangement comprising a first shielding unit and a second shielding unit. The rotor is rotatably supported around a rotation axis by means of bearings. The shielding units are electrically conductive and comprise a ring part in each case that extends originating from a radial inner end to a radial outer end away from the rotation axis. Preferably each shielding unit has a circumferential part on its radial outer end that extends in a continuous ring-shaped manner around rotation axis and is arranged in overlapping manner with the adjacent axial end of stator winding in axial direction. The circumferential parts are preferably completely closed, whereas the ring parts can comprise through holes.Type: ApplicationFiled: February 11, 2022Publication date: August 11, 2022Inventors: Martin BUERKERT, Rainer MUELLER, Jochen HAEFNER, Sebastian SCHROTH
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Patent number: 11398775Abstract: The disclosure relates to the operation and a circuit arrangement for a network connection variable with regard to the input voltage (1-phase/3-phase), which is connected using a centre tap (M) between the capacitors (C) via a connecting line to a neutral conductor (N) of an input AC voltage source.Type: GrantFiled: August 19, 2020Date of Patent: July 26, 2022Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Fabian Schneider, Alex Schneider, Fabian Wagner, Steffen Hanselmann
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Patent number: 11397018Abstract: The disclosure relates to an assembly composed of two or more electric drives, each of which is provided with a housing that is preferably closed all around; a transceiver or radio transmitter inside the housing of each electric drive is configured for wireless data communication with a master controller; for this purpose, a properly mounted transmission opening is provided in each housing in order for data to be transmitted and received through the transmission opening.Type: GrantFiled: June 13, 2018Date of Patent: July 26, 2022Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Helmut Lipp, Thomas Sauer, Günter Haas, Markus Humm, Marco Weckert
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Publication number: 20220200510Abstract: A system (1) has a control device (10) with central electronics (11) designed for connection and operation of differently coded electric motors (En), with different motor characteristics (Mn) and/or power classes (Ln), to a device connection (12) of the control device (10). The at least one electric motor (En) is selectable from a number (n) of electric motor (En), that can be connected as intended, has a coding element (Kn). The central electronics (11) have a coding capture device (2) to recognize, via coding element (n), the motor characteristics (Mn) and/or the power class (Ln) of the respective currently connected electric motor (En).Type: ApplicationFiled: April 21, 2020Publication date: June 23, 2022Applicant: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin BÜRKERT, Steffen KAMMLEITER, Sebastian SCHROTH, Alex SCHNEIDER, Marco WECKERT
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Publication number: 20220187860Abstract: An analog circuit arrangement (1) to variably set a voltage Uout, within defined voltage limits, has a non-inverting adder (10) with a positive input (11). A voltage divider (20), with at least a first stage (21) and a second stage (22), is connected to the positive input (11) of the adder (10). At least one stage has a parallel circuit of n resistors (R1, R2, . . . , Rn) that are each connected in series in a conduction path (L1, L2, . . . , Ln) to an overcurrent protection device (F1, F2, . . . , Fn). At least one device (30) actively changes one or more of the overcurrent protection devices (F1, F2, . . . , Fn) into a state that interrupts the respective affected conduction path (L1, L2, . . . , Ln).Type: ApplicationFiled: May 14, 2020Publication date: June 16, 2022Applicant: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin BÜRKERT, Thomas KILIAN, Sebastian SCHROTH, Fabian SCHNEIDER, Georg WIEDMANN
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Publication number: 20210159783Abstract: The disclosure relates to the operation and a circuit arrangement for a network connection variable with regard to the input voltage (1-phase/3-phase), which is connected using a centre tap (M) between the capacitors (C) via a connecting line to a neutral conductor (N) of an input AC voltage source.Type: ApplicationFiled: August 19, 2020Publication date: May 27, 2021Inventors: Martin Bürkert, Fabian Schneider, Alex Schneider, Fabian Wagner, Steffen Hanselmann
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Publication number: 20210055013Abstract: The disclosure relates to an assembly composed of two or more electric drives, each of which is provided with a housing that is preferably closed all around; a transceiver or radio transmitter inside the housing of each electric drive is configured for wireless data communication with a master controller; for this purpose, a properly mounted transmission opening is provided in each housing in order for data to be transmitted and received through the transmission opening.Type: ApplicationFiled: June 13, 2018Publication date: February 25, 2021Inventors: Martin Bürkert, Helmut Lipp, Thomas Sauer, Günter Haas, Markus Humm, Marco Weckert
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Publication number: 20200287433Abstract: A rotating field machine, in particular an electric motor with a stator and a rotor, is configured with a motor control for controlling the rotation and the rotational speed n of the rotor of the rotating field machine, wherein the motor control integrally includes an oscillation sensor system in order to acquire actual measurement values of oscillations of the rotating field machine depending on the rotational speed n.Type: ApplicationFiled: March 4, 2020Publication date: September 10, 2020Inventors: Martin Bürkert, Hartmut Messerschmidt, Christian Antonius Knipp
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Publication number: 20200186493Abstract: A dynamically addressable master-slave system and a method for dynamically addressing slave units includes a master unit and a plurality of slave units, such that the slave units are interconnected with the master unit via a bus system. The respective network addresses of the slave units are assigned to the respective serial numbers of these slave units in a table in the master unit according to the position thereof in the system according to a determined order. Upon replacement of slave units, a list of serial numbers of the units to be replaced is transferred to the master unit in the sequence of the acquisition of the serial numbers, which master unit replaces these serial numbers in the table with the serial numbers of the replaced slave units transmitted to the master unit.Type: ApplicationFiled: July 25, 2018Publication date: June 11, 2020Inventors: Martin Bürkert, Helmut Lipp, Thomas Sauer, Günter Haas, Markus Humm, Marco Weckert
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Patent number: 10424914Abstract: A protective circuit protects against overheating of the stator windings of an EC motor. The stator windings are connected to a semiconductor output stage which is designed for time-offset control of the stator windings using a driver circuit of a commutation controller. The protective circuit has two redundant sensor circuits, wherein two resistance-dependent sensor elements connected in series are provided in the first sensor circuit and one resistance-dependent sensor element is provided in the second sensor circuit. The first and the second sensor circuits are connected, respectively, to two evaluating circuits separated from each other and cause an interruption of the driver circuit using switch-off means when a system-specific resistance value of the first sensor element or the one sensor element associated with the second sensor circuit is reached.Type: GrantFiled: May 30, 2016Date of Patent: September 24, 2019Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Martin Bürkert, Steffen Kammleiter, Günter Haas, Daniel König
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Publication number: 20180159312Abstract: A protective circuit protects against overheating of the stator windings of an EC motor. The stator windings are connected to a semiconductor output stage which is designed for time-offset control of the stator windings using a driver circuit of a commutation controller. The protective circuit has two redundant sensor circuits, wherein two resistance-dependent sensor elements connected in series are provided in the first sensor circuit and one resistance-dependent sensor element is provided in the second sensor circuit. The first and the second sensor circuits are connected, respectively, to two evaluating circuits separated from each other and cause an interruption of the driver circuit using switch-off means when a system-specific resistance value of the first sensor element or the one sensor element associated with the second sensor circuit is reached.Type: ApplicationFiled: May 30, 2016Publication date: June 7, 2018Inventors: Martin BÜRKERT, Steffen KAMMLEITER, Günter HAAS, Daniel KÖNIG
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Patent number: 9880950Abstract: A master-slave system includes a master unit having a digital output for providing a signal or a serial signal sequence of signals, and at least two slave units. Each of the slave units includes at least one digital serial memory having a size of one bit, and each slave unit includes an input and an output. The slave units are serially connected to one another via the inputs and the outputs via a signal line (5). The output of a first slave unit is connected via the signal line to the digital output of the master unit. The master slave system is configured so that a signal supplied by the digital output is detected at the input of the slave unit, in order to raise the address of the corresponding slave unit in each case by the value “1”, to store the signal change in the memory and to output a signal corresponding to the content of the memory at the output of the memory.Type: GrantFiled: August 31, 2015Date of Patent: January 30, 2018Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Thomas Sauer, Helmut Lipp, Klaus Teuke, Markus Humm, Andreas Fessel, Martin Buerkert
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Patent number: 9529038Abstract: An electronic control circuit for an electronically commutated motor (ECM) is disclosed. A plurality of power transistors controls the ECM, and a reference transistor is formed together with the power transistors on a common support. A control unit is configured to, in a test mode: apply a test current to the reference transistor and one of the power transistors respectively; measure a saturation voltage of the reference transistor and one of the power transistors; evaluate a saturation voltage difference between the measured saturation voltages of the reference transistor and the respective power transistor; evaluate a rate of change of saturation voltage differences between a first iteration of the test mode and a second iteration of the test mode; and determine an expected remaining service life of the power transistors based on the temperature of the support during the test mode and the rate of change of the saturation voltage differences.Type: GrantFiled: November 21, 2011Date of Patent: December 27, 2016Assignee: ebm-papst Mulfingen GmbH & Co. KGInventors: Helmut Lipp, Günter Haas, Martin Bürkert
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Publication number: 20160103773Abstract: A master-slave system includes a master unit having a digital output for providing a signal or a serial signal sequence of signals, and at least two slave units. Each of the slave units includes at least one digital serial memory having a size of one bit, and each slave unit includes an input and an output. The slave units are serially connected to one another via the inputs and the outputs via a signal line (5). The output of a first slave unit is connected via the signal line to the digital output of the master unit. The master slave system is configured so that a signal supplied by the digital output is detected at the input of the slave unit, in order to raise the address of the corresponding slave unit in each case by the value “1”, to store the signal change in the memory and to output a signal corresponding to the content of the memory at the output of the memory.Type: ApplicationFiled: August 31, 2015Publication date: April 14, 2016Inventors: Thomas SAUER, Helmut LIPP, Klaus TEUKE, Markus HUMM, Andreas FESSEL, Martin BUERKERT