Patents by Inventor Robert Oesterle
Robert Oesterle 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: 20240158204Abstract: An elevator system (31) comprising a power control system (16). The power control system (16) includes a multi-channel DC-DC converter (2) including a plurality of parallel channels (4). Each channel (4) of the multi-channel DC-DC converter (2) is independently connectable to a device (18). The power control system (16) also includes a controller (14) configured to control each channel (4) of the multi-channel DC-DC converter (2). The controller (14) is configured to receive and store for each channel (4) of the multi-channel DC-DC converter (2) information (42) on the device (18) connected to that channel (4).Type: ApplicationFiled: August 2, 2023Publication date: May 16, 2024Inventors: Robert Oesterle, Michael Kocur
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Patent number: 9746513Abstract: A thyristor circuit comprising at least one series circuit in which two or more thyristors are connected in series. Each thyristor is parallel-connected to an RC member. A control device can energize the thyristors individually and independently of each other by a control signal, so that each thyristor can be individually switched into its conducting condition. During a test sequence, the thyristors are switched successively into their conducting condition, wherein, in a series circuit and/or in the thyristor circuit, respectively only one thyristor is in its conducting condition. While a thyristor is conducting, the capacitor of the associate RC member discharges and produces a thyristor current. As a result, the conducting condition is maintained until the thyristor current falls below the holding current. The control device can use the thyristor voltage and/or the thyristor current to evaluate the function or the switching behavior of the thyristor.Type: GrantFiled: April 22, 2015Date of Patent: August 29, 2017Assignee: GE ENERGY POWER COVERSION GMBHInventors: Martin Geske, Robert Oesterle, Siegfried Nowak
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Publication number: 20150309108Abstract: A thyristor circuit comprising at least one series circuit in which two or more thyristors are connected in series. Each thyristor is parallel-connected to an RC member. A control device can energize the thyristors individually and independently of each other by a control signal, so that each thyristor can be individually switched into its conducting condition. During a test sequence, the thyristors are switched successively into their conducting condition, wherein, in a series circuit and/or in the thyristor circuit, respectively only one thyristor is in its conducting condition. While a thyristor is conducting, the capacitor of the associate RC member discharges and produces a thyristor current. As a result, the conducting condition is maintained until the thyristor current falls below the holding current. The control device can use the thyristor voltage and/or the thyristor current to evaluate the function or the switching behavior of the thyristor.Type: ApplicationFiled: April 22, 2015Publication date: October 29, 2015Inventors: Martin GESKE, Robert OESTERLE, Siegfried NOWAK
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Patent number: 8583059Abstract: Described is a method for operating a power semiconductor component. A power amplifier provided with a programmable logic is assigned to this power semiconductor component. In at least one embodiment, control signals for the power semiconductor component are transmitted to the power amplifier. The power semiconductor component is influenced by the power amplifier in dependence on these control signals. The type and manner in which the power semiconductor component is influenced is determined by the programming of the logic. The power amplifier can be sent programming signals which are then processed by a processor of the power amplifier. The programming of the logic is changed by the processor in dependence on the programming signals.Type: GrantFiled: April 20, 2011Date of Patent: November 12, 2013Assignee: GE Energy Power Conversion Technology LimitedInventors: Robert Oesterle, Christian Keller
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Publication number: 20110309882Abstract: Described is a method for operating a power semiconductor component. A power amplifier provided with a programmable logic is assigned to this power semiconductor component. In at least one embodiment, control signals for the power semiconductor component are transmitted to the power amplifier. The power semiconductor component is influenced by the power amplifier in dependence on these control signals. The type and manner in which the power semiconductor component is influenced is determined by the programming of the logic. The power amplifier can be sent programming signals which are then processed by a processor of the power amplifier. The programming of the logic is changed by the processor in dependence on the programming signals.Type: ApplicationFiled: April 20, 2011Publication date: December 22, 2011Applicant: Converteam Technology Ltd.Inventors: Robert Oesterle, Christian Keller
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Patent number: 7650968Abstract: A power supply for an elevator drive includes a voltage input, a comparator for comparing the input voltage with a predetermined threshold, a transformer having a primary winding and a secondary winding connected to the elevator drive. The transformer has a single tapped primary winding. When the input voltage exceeds the predetermined threshold input, the comparator output causes power to be supplied to the primary winding via one of an end of the winding or the tapping of the winding, and when the input voltage is below the predetermined threshold, input power is supplied to the primary winding via the other of the end of the primary winding and the tapping of the winding.Type: GrantFiled: December 31, 2004Date of Patent: January 26, 2010Assignee: Otis Elevator CompanyInventors: Robert Oesterle, Marvin Dehmlow, Axel Friedrich
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Publication number: 20090127029Abstract: A power supply for an elevator drive, comprising a voltage input, a comparator for comparing the input voltage with a predetermined threshold, a transformer having a primary winding and a secondary winding connected to the elevator drive; where the transformer has a single tapped primary winding and wherein, when the input voltage exceeds the predetermined threshold input, the comparator output causes power to be supplied to the primary winding via one of an end of the winding or the tapping of the winding, and when the input voltage is below the predetermined threshold, input power is supplied to the primary winding via the other of the end of the primary winding and the tapping of the winding.Type: ApplicationFiled: December 31, 2004Publication date: May 21, 2009Inventors: Robert Oesterle, Marvin Dehmlow, Axel Friedrich
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Patent number: 6634463Abstract: Method for controlling the drive of a conveyor device (10), especially in the form of an escalator or moving sidewalk, switchable between load operation and no-load operation, having a drive motor (26) and a frequency changer (42) controllable at least with respect to frequency and phase position of its output voltage, in which the drive motor (26) in load operation is fed with a line voltage with essentially constant line frequency and in no-load operation with the frequency changer output voltage, the phase difference between the phase position of the line voltage and the phase position of the frequency changer output voltage is determined, the phase position of the frequency changer output voltage is corrected according to the determined phase difference and therefore essentially brought into agreement with the phase position of the line voltage and switching is produced as soon as this agreement is reached.Type: GrantFiled: May 16, 2002Date of Patent: October 21, 2003Assignee: Otiscelecator CompanyInventors: Stefan Spannhake, Michael Mann, Gunter Blechschmidt, Peter Walden, Robert Oesterle, Michael B. Kocur
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Publication number: 20020189905Abstract: Method for controlling the drive of a conveyor device (10), especially in the form of an escalator or moving sidewalk, switchable between load operation and no-load operation, having a drive motor (26) and a frequency changer (42) controllable at least with respect to frequency and phase position of its output voltage, in which the drive motor (26) in load operation is fed with a line voltage with essentially constant line frequency and in no-load operation with the frequency changer output voltage, the phase difference between the phase position of the line voltage and the phase position of the frequency changer output voltage is determined, the phase position of the frequency changer output voltage is corrected according to the determined phase difference and therefore essentially brought into agreement with the phase position of the line voltage and switching is produced as soon as this agreement is reached.Type: ApplicationFiled: May 16, 2002Publication date: December 19, 2002Applicant: Otis Elevator CompanyInventors: Stefan Spannhake, Michael Mann, Gunter Blechschmidt, Peter Walden, Robert Oesterle, Michael B. Kocur
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Patent number: 6037686Abstract: Each torque-producing phase current of a multi-phase motor is passed through a filter which includes an R/C shunt to ground and a series, current-compensated choke. Each choke has a winding in series with each phase so that the net current generated by phase currents in the windings is zero, and therefore the net flux generated by phase currents in the highly permeable core of the choke is zero at all times. However, there is significant inductive reactance created by the non-counterbalanced motor leakage currents, which prevent leakage currents from circulating through the motor. Thus, torque-producing motor currents can accurately be measured for feedback, without pollution from leakage currents. LEM current transducers allow use of small, proportional currents in the measuring and suppress inter-phase coupling.Type: GrantFiled: February 9, 1999Date of Patent: March 14, 2000Assignee: Otis Elevator CompanyInventors: Uwe Schonauer, Robert Oesterle, Christoph M. Ernecke