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公开(公告)号：US11387767B2
公开(公告)日：2022-07-12
申请号：US16926244
申请日：2020-07-10
Applicant: KOLLMORGEN CORPORATION
Inventor： Robert Pearce
IPC: G01R31/34 , H02P29/024 , H02H7/08 , H02P21/00 , H02P27/06
Abstract: A torque-limiting safety circuit servo drive for AC permanent magnet motors including a three-phase inverter bridge, a first current sensor in series with a first motor phase, a second current sensor in series with a second motor phase, a third current sensor in series with the DC bus, and a drive control circuit that controls the six pulse-width modulated gate drive signals for the three-phase inverter bridge. The drive circuit has first and second safety channel STO inputs whereby either channel can shut down the three-phase inverter bridge, emits a signal set to represent the switching state of the three-phase inverter bridge, and modifies the switching pattern of the PWM to ensure the dwell times of PWM is sufficiently long to allow a valid measurement of phase current using the bus current sensor. First and second safety processors controls the first and second safety channel STO inputs, respectively.
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公开(公告)号：US20210159721A1
公开(公告)日：2021-05-27
申请号：US17037004
申请日：2020-09-29
Applicant: KOLLMORGEN CORPORATION
Inventor： Boris Semenov , Christian Rolf Jakschies , George Borkey Yundt , Kerim Feiler , Lars Lindner , Michael Capelle , Robert Pearce , Sergio Maggioni , Silvio Dus
Abstract: A power control system is provided for AC mains, including an input bridge rectifier connected to the AC power mains, and a buck regulator circuit connected to the DC output of the input bridge rectifier, the output of the buck regulator circuit providing a DC power output bus. A current sensor is connected to the output of the buck regulator circuit, and one or more capacitors is connected across the DC power output bus for receiving current from the buck regulator circuit. The buck regulator circuit is controlled to limit peak output current thereof.
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公开(公告)号：US11518033B2
公开(公告)日：2022-12-06
申请号：US16921327
申请日：2020-07-06
Applicant: KOLLMORGEN CORPORATION
Inventor： Robert Pearce
Abstract: An electric motor drive system is provided wherein safety is achieved by commanding the process system of the relevant axis or set of axes to execute motion that follows a defined path, namely trajectory of position, velocity and acceleration against time, re-constructing an identical trajectory in the safety system and in, the safety system, supervising deviations between the safely reconstructed target position and the safe measurement of position.
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公开(公告)号：US11791652B2
公开(公告)日：2023-10-17
申请号：US17037004
申请日：2020-09-29
Applicant: KOLLMORGEN CORPORATION
Inventor： Boris Semenov , Christian Rolf Jakschies , George Borkey Yundt , Kerim Feiler , Lars Lindner , Michael Capelle , Robert Pearce , Sergio Maggioni , Silvio Dus
CPC classification number: H02J7/345 , H02J7/0063
Abstract: A power control system is provided for AC mains, including an input bridge rectifier connected to the AC power mains, and a buck regulator circuit connected to the DC output of the input bridge rectifier, the output of the buck regulator circuit providing a DC power output bus. A current sensor is connected to the output of the buck regulator circuit, and one or more capacitors is connected across the DC power output bus for receiving current from the buck regulator circuit. The buck regulator circuit is controlled to limit peak output current thereof.
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Patent Agency Ranking
公开(公告)号：US10770929B2
公开(公告)日：2020-09-08
申请号：US16282982
申请日：2019-02-22
Applicant: KOLLMORGEN CORPORATION
Inventor： George B. Yundt , Robert Pearce
Abstract: A device for communicating and providing power over a cable having at least two conductors comprises an inductor having two secondary windings and one primary winding, and a transceiver coupled to the primary winding of the inductor, the two secondary windings of the inductors being coupled to two of the at least two conductors of the cable. Further, a voltage signal provided by the secondary windings of the inductors to the conductors varies symmetrically from an average potential. The inductor of the device can also comprise two primary windings connected in series and two secondary windings connected in series, the secondary windings also connected to two of the at least two conductors in the cable, wherein the voltage signal provided to the two conductors from the secondary windings varies symmetrically from an average potential.
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公开(公告)号：US10374468B2
公开(公告)日：2019-08-06
申请号：US15274517
申请日：2016-09-23
Applicant: KOLLMORGEN CORPORATION
Inventor： George B. Yundt , Robert Pearce
Abstract: A device for communicating and providing power over a cable having at least two conductors comprises a first inductor having a primary and a secondary winding, a second inductor having a primary and a secondary winding, the primary winding of the second inductor being coupled at one end to the primary winding of the first inductor, each of the secondary windings of the first and second inductors being coupled to one of the at least two conductors in the cable. The device further includes a transceiver coupled to the primary windings of the first and second inductors, wherein the first inductor is coupled to local ground potential, in a manner that varies the potential of each of the said conductors symmetrically from an average potential.
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公开(公告)号：US12206334B2
公开(公告)日：2025-01-21
申请号：US18081305
申请日：2022-12-14
Applicant: KOLLMORGEN CORPORATION
Inventor： Robert Pearce , George Borkey Yundt
Abstract: Networked automation systems having electric actuation from a high voltage source. The electric actuator includes a switch mode power supply coupled to the high voltage source as a principal power source. The networked automation systems include a controller device having an output network port wired to an input network port of the motor drive. The controller device is also coupled to an auxiliary source of power. Thus, a regulation circuit of the switch mode power supply can be coupled to the auxiliary source of power, thereby providing power for the regulation circuit at start up.
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公开(公告)号：US20220001539A1
公开(公告)日：2022-01-06
申请号：US16921327
申请日：2020-07-06
Applicant: KOLLMORGEN CORPORATION
Inventor： Robert Pearce
Abstract: An electric motor drive system is provided wherein safety is achieved by commanding the process system of the relevant axis or set of axes to execute motion that follows a defined path, namely trajectory of position, velocity and acceleration against time, re-constructing an identical trajectory in the safety system and in, the safety system, supervising deviations between the safely reconstructed target position and the safe measurement of position.
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公开(公告)号：US10520050B2
公开(公告)日：2019-12-31
申请号：US15411759
申请日：2017-01-20
Applicant: KOLLMORGEN CORPORATION
Inventor： Robert Pearce , George B. Yundt , Daniel Kouba
IPC: F16D63/00 , H01F7/06 , H02P3/04 , H02P29/04 , F16D121/20
Abstract: A control circuit configured to control an electromechanical brake is provided. The control circuit includes: a switching regulator configured to control a magnitude of voltage applied to a brake coil of the electromechanical brake; wherein said switching regulator includes at least one semiconductor switch, one diode, one capacitor and one inductor; the control circuit is configured such that, in operation, at least one signal from a process sub-system specifies the magnitude of the voltage for the brake coil; and at least one brake applying control signal from a safety sub-system can cause the brake coil voltage to be reduced to a level low enough to apply the brake by opening a switch and each brake applying control signal from the safety sub-system has a corresponding diagnostic feedback signal to the safety sub-system that indicates the state of the corresponding switch. A method and a system are disclosed.
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