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公开(公告)号：US20220149750A1
公开(公告)日：2022-05-12
申请号：US17580223
申请日：2022-01-20
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
Abstract: A system and method for an interleaved inverter including a set of module circuits and an inverter controller. The module circuits include multiple switches. The inverter controller is configured to assign a first phase shift value to each of the module circuits during a normal mode of operation and assign a second phase shift value to at least one of the module circuits during a failure mode of operation. The second phase shift value is greater than the first phase shift value.
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公开(公告)号：US11286848B2
公开(公告)日：2022-03-29
申请号：US16353679
申请日：2019-03-14
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson , Frank C. Formas
IPC: H02K19/38 , F02B63/04 , H02K9/19 , H02P9/30 , H02K7/18 , H02K19/28 , H02K1/18 , H02K9/22 , H02K9/00
Abstract: An alternator includes an exciter field device generating an exciter magnetic field in a first air gap, an exciter armature device configured to rotate with respect to the exciter magnetic field and impart a first voltage in a first set of coils at the first air gap, a main stator device including a second set of coils, and a rotor field device configured to be energized by the first current in the first set of coils and generate a main magnetic field that imparts a second voltage on the main stator device at a second air gap. The main stator device and the exciter field device lie in on a common plane normal to an axis of rotation, and the exciter armature device is inwardly spaced from the exciter field device, main stator device, and the rotor field device.
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公开(公告)号：US11245266B2
公开(公告)日：2022-02-08
申请号：US16188670
申请日：2018-11-13
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
IPC: H02J3/42
Abstract: A system and method for paralleling generators. A timing signal indicative of a waveform reference point of at least a first generator of the generators is received at a second generator. The receiving generator determines a closing time for a second generator breaker associated with the second generator in response the timing signal from the first generator. The first generator breaker and the second generator breaker, or an aggregated generator breaker is closed to a bus at the closing time.
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公开(公告)号：US20210184596A1
公开(公告)日：2021-06-17
申请号：US16712263
申请日：2019-12-12
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
Abstract: A system and method for an interleaved inverter including a set of module circuits and an inverter controller. The module circuits include multiple switches. The inverter controller is configured to assign a first phase shift value to each of the module circuits during a normal mode of operation and assign a second phase shift value to at least one of the module circuits during a failure mode of operation. The second phase shift value is greater than the first phase shift value.
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公开(公告)号：US10903764B2
公开(公告)日：2021-01-26
申请号：US16182130
申请日：2018-11-06
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
IPC: H02P5/00 , H02P5/74 , H02M5/27 , H02K19/26 , H02P9/42 , B60L1/00 , H02P27/08 , H02P27/16 , H02P9/14 , H02J7/00 , H02J7/02 , H02J7/14 , B60L58/10 , H02J7/24 , H02P6/16 , A01D34/64 , A01D34/43 , B60L58/40 , H02J3/38 , B60L50/60
Abstract: An apparatus includes a first inverter circuit and a second inverter circuit. The first invertor circuit is configured to couple an alternator and a load device to deliver a driving signal from the alternator to the load device. The second invertor circuit is configured to couple the alternator to the load device to deliver a driving signal from the alternator to the load device and configured to couple a battery to the alternator to deliver a charging signal from the alternator the battery.
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Patent Agency Ranking
公开(公告)号：US10826418B2
公开(公告)日：2020-11-03
申请号：US16284681
申请日：2019-02-25
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
IPC: H02P9/00 , H02P9/48 , H02P9/30 , H02K7/18 , H02P9/14 , H02P9/04 , H02K3/26 , H02K11/042 , H02P101/45 , H02K19/38
Abstract: In one embodiment, a generator includes a rotor configured to rotate in cooperation with a stator to generate electrical power. An exciter of the generator includes at least one circuit board, a stationary exciter stator, and a control circuit. The circuit board is mechanically coupled to a rotor of the generator and includes at least one coil of an electrical conductor. The stationary exciter stator is configured to induce a current in the at least one coil of the at least one circuit board. The control circuit is configured to modify the current from the at least one coil and provide the modified current to a field of the generator.
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公开(公告)号：US10790664B2
公开(公告)日：2020-09-29
申请号：US15977854
申请日：2018-05-11
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Kenneth R. Bornemann , Harrison C. Chiu
Abstract: Some embodiments relate to a method of adding and shedding loads that are connected to a generator. The method includes determining whether a plurality of loads is being supplied with power by the generator and then determining the total load that the generator is supplying to the plurality of loads. The method further includes determining whether to change a number of the loads in the plurality of loads based on the amount of load L that is being supplied by the generator. The method further includes determining an amount of time T in which to change the number of loads in the plurality of loads based on the amount of load that is being supplied by the generator.
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公开(公告)号：US10715019B2
公开(公告)日：2020-07-14
申请号：US15983323
申请日：2018-05-18
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
Abstract: A dual axis motor a first epicyclic gear, a second epicyclic gear, a rim gear, an inner rotor, an outer rotor, a brake and a stator assembly. The second epicyclic gear is operative to mesh with the first epicyclic gear and move in around the first epicyclic. The inner rotor is fixedly connected to the first epicyclic gear. The outer rotor fixedly is connected to the second epicyclic gear. The stator assembly spaced from the inner rotor by a first gap and spaced from the outer rotor by a second gap. The motor provides a resultant torque to driven device. The resultant torque is provided by the inner rotor, outer rotor, the brake, or by sudden deceleration of one or more elements within the dual axis motor. The gear ratio provided by the first and second epicyclic gear allow for an enhanced speed range while providing high starting torque.
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公开(公告)号：US20200021184A1
公开(公告)日：2020-01-16
申请号：US16503781
申请日：2019-07-05
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
Abstract: An inverter system includes an inverter controller and at least one surge protection device. The inverter controller is configured to operate multiple switches to provide an alternating current to an output. The at least one surge protection device is configured to limit a voltage on a direct current link of the inverter. The at least one surge protection device includes a variable resistance component coupled to the direct current link of the inverter, a sensing resistor selectively connected in parallel to the variable resistance component by a switching component, a detection device configured to measure a parameter of the sensing resistor, and a control circuit including failure sensing logic configured to detect a failure in the variable resistance component in response to information from the variable resistance component and information from the detection device for the parameter of the sensing resistor.
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公开(公告)号：US20200021103A1
公开(公告)日：2020-01-16
申请号：US16503786
申请日：2019-07-05
Applicant: Kohler Co.
Inventor： Isaac S. Frampton , Adam Larson
Abstract: A circuit for minimizing energy provided to a ground fault includes a source, a multiple switches, an output filter, and a controller. The switches include a first side pair of switches and a second side pair of switches configured to provide an output signal based on the source. The output filter includes one or more energy storage elements coupled to the first side pair of switches or the second side pair of switches. The controller is configured to receive a ground fault signal that indicates a fault has occurred and configured to generate a switch signal for the switches for a minimum energy state of the output filter and in response to the ground fault signal.
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