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公开(公告)号：US20240339825A1
公开(公告)日：2024-10-10
申请号：US18745276
申请日：2024-06-17
IPC分类号： H02H3/08 , G01R15/20 , G01R19/175 , H01H9/54 , H01H9/56 , H01H33/59 , H01H71/04 , H01H71/12 , H01H71/24 , H02H1/00 , H02H3/33 , H02J13/00 , H02M7/06
CPC分类号： H02H3/08 , G01R15/202 , G01R19/175 , H01H9/542 , H01H9/548 , H01H9/56 , H01H9/563 , H01H33/593 , H01H71/04 , H01H71/128 , H01H71/24 , H02H1/0007 , H02H1/0092 , H02H3/33 , H02J13/00022 , H01H2009/543 , H01H2009/546 , H01H2300/03 , H02H3/085 , H02M7/06
摘要： A circuit breaker comprises a solid-state bidirectional switch, a switch control circuit, current and voltage sensors, and a processor. The solid-state bidirectional switch is connected between a line input terminal and a load output terminal of the circuit breaker, and configured to be placed in a switched-on state and a switched-off state. The switch control circuit control operation of the bidirectional switch. The current sensor is configured to sense a magnitude of current flowing in an electrical path between the line input and load output terminals and generate a current sense signal. The voltage sensor is configured to sense a magnitude of voltage on the electrical path and generate a voltage sense signal. The processor is configured to process the current and voltage sense signals to determine operational status information of the circuit breaker, a fault event, and power usage information of a load connected to the load output terminal.
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公开(公告)号：US12112914B2
公开(公告)日：2024-10-08
申请号：US17797977
申请日：2021-01-25
CPC分类号： H01H9/541 , H01H9/16 , H01H9/30 , H01H33/596 , H02H1/0015
摘要： A circuit and method are disclosed enabling a direct current (DC) power source to power a load circuit designed for alternating current (AC) input. The circuit is arranged to be connected between a DC power source and a load circuit in which the load circuit includes an electric load and a switch with a mechanical contact in series with the load. The circuit comprises a contact opening detector arranged to detect an opening event of the switch contact and a damping component arranged to be triggered in response to the contact opening detector detecting a contact opening event. The triggered damping component causes a momentary lowering of a load circuit input voltage, such that the momentary lowering of the load circuit input voltage prevents the sustaining of an electric arc across the opened switch contact.
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公开(公告)号：US11948763B1
公开(公告)日：2024-04-02
申请号：US18519852
申请日：2023-11-27
CPC分类号： H01H33/596 , H01H9/542 , H02H3/021 , H02H3/087
摘要： An actuation device for actuating a circuit breaker, has a circuit arrangement and a plurality of resistor devices, wherein a plurality of first switching elements of the circuit arrangement are connected to a respectively assigned first voltage source and a respectively assigned resistor device and have a switching input that is connected to an actuation logic unit, wherein this actuation logic unit furthermore has a superordinate actuation input and a plurality of sensor inputs. A method for operating such an actuation device is also presented, wherein, during the switching-on or the switching-off process of the circuit breaker, the plurality of first switching elements are switched on in a clocked manner and therefore generate a target voltage profile at the control input of the circuit breaker.
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公开(公告)号：US20230368991A1
公开(公告)日：2023-11-16
申请号：US18246377
申请日：2021-08-02
申请人： AutoNetworks Technologies, Ltd. , Sumitomo Wiring Systems, Ltd. , Sumitomo Electric Industries, Ltd.
CPC分类号： H01H33/596 , B60L3/04 , H02J7/0031
摘要： A DC circuit switching apparatus is connected between an automobile battery and a motor-side circuit and cuts off current that flows in two directions. The DC circuit switching apparatus includes a breaker that cuts off current, a first voltage holding circuit, which is constituted by a first diode and a first capacitor that are connected in series, that is provided in parallel to the breaker and is configured to allow power supply from the automobile battery to the motor-side circuit, and a second voltage holding circuit, which is constituted by a second diode and a second capacitor that are connected in series, that is provided in parallel to the breaker and is configured to allow power supply from the motor-side circuit to the automobile battery.
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公开(公告)号：US11664180B2
公开(公告)日：2023-05-30
申请号：US17509770
申请日：2021-10-25
CPC分类号： H01H47/18 , B64D41/00 , H01H9/56 , H01H33/59 , H01H47/002 , H01H47/26 , B64D2221/00 , H01H33/593 , H02H3/021
摘要： A contactor apparatus and method for operating the contactor apparatus can include a contactor assembly with a contactor coil operably coupled to a contactor switch. One or more sensors can be provided in the contactor assembly adapted to measure one or more aspects of the contactor assembly. Based upon the measured aspects, a controller can initiate operation of the contactor switch to effectively toggle the contactor switch at a zero-crossing point along an alternating current waveform.
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公开(公告)号：US20230096110A1
公开(公告)日：2023-03-30
申请号：US17449271
申请日：2021-09-29
发明人： Kyle B. Adkins , Andrew E. Carlson , David Elmiger
IPC分类号： H01H33/59
摘要： A method may include receiving a command to move one or more armatures configured to move between a first position that electrically couples one or more first movable contacts to one or more second contacts and a second position that electrically uncouples the one or more first movable contacts from the one or more second contacts. The method may also include determining an operating frequency of the system, dynamically determining an open-before-zero target point associated with the operating frequency, and transmitting a command to the switching device to move the one or more armatures from the first position to the second position at the open-before-zero target point to normalize the arc energy over the operating frequency range.
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公开(公告)号：US11611207B2
公开(公告)日：2023-03-21
申请号：US16586405
申请日：2019-09-27
发明人： Shahab Mehraeen , Sudipta Sen
摘要： The present disclosure provides a DC mechanical circuit breaker that can utilize two switches, one of which can generate zero-crossing with an alternate oscillatory circuit for the other one, which can be a conventional zero-crossing-based AC breaker and can be used in the main circuit. This is different from the conventional single-switch commute-and-absorb method currently used. The present disclosure shows that disclosed circuit breaker improves the fault current extinction and significantly reduces the voltage rate-of-change while creating the current zero-crossing faster compared to the available technology. Thus, disclosed circuit breaker is capable of interrupting high DC currents with minimal arc through a less expensive AC circuit breaker. Simulation and hardware results are provided to show the efficiency of the disclosed circuit breaker.
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公开(公告)号：US20230038302A1
公开(公告)日：2023-02-09
申请号：US17395036
申请日：2021-08-05
申请人： Lear Corporation
摘要： An electrical unit may include a current controller including an electrical regulator, a control circuit connected to a first input of the electrical regulator, a timer connected to a second input of the electrical regulator, and/or a turn-off circuit including a turn-off switch. The current controller may be configured to provide a first output signal in a first mode and a second output signal in a second mode. The current controller may be configured to transition from the first mode to the second mode based on a timer output of the timer. An electrical system may include an electrical unit and or a switch connected to the electrical unit. The switch may include a coil. The electrical unit may be configured to provide the first output signal to the coil in the first mode and provide the second output signal to the coil in the second mode.
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公开(公告)号：US11488795B2
公开(公告)日：2022-11-01
申请号：US16921123
申请日：2020-07-06
申请人： Robert Bosch GmbH
摘要： A switching element (100) that comprises a switching unit (30), a first and a second coil unit (10, 20) for closing and opening the switching unit (30), wherein the first coil unit (10) comprises a first coil (12) and wherein the second coil unit (20) comprises a second coil (22). According to the invention, the first coil unit (10) comprises a first controllable delay circuit (14) that is connected in series with the first coil (12). The invention further relates to a switching device (200) that comprises a switching element (100) according to the invention. The invention further relates to a first and a second method for the operation of the switching device (200) according to the invention.
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公开(公告)号：US11368084B2
公开(公告)日：2022-06-21
申请号：US16634643
申请日：2018-06-29
发明人： Dominik Ergin , Matthias Burkhardt
摘要： A current converter unit for a high-voltage direct-current (HVDC) transmission contains a first converter and a second converter. A first direct-current terminal of the first converter is connected to a first conductor terminal point for a first HVDC transmission conductor. A second direct-current terminal of the first converter is connected to a first direct-current terminal of the second converter such that a connection point is formed. A second direct-current terminal of the second converter is connected to a second conductor terminal point for a second HVDC transmission conductor. The connection point is connected to ground potential by a current-damping electric component, and the connection point is connected to the ground potential by a direct-current switch.
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