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公开(公告)号：US10895609B2
公开(公告)日：2021-01-19
申请号：US16407624
申请日：2019-05-09
申请人： Littelfuse, Inc.
摘要： A circuit protection device including a primary fuse, and a positive temperature coefficient (PTC) device and a secondary fuse electrically connected in series with one another and in parallel with the primary fuse, the secondary fuse formed of a quantity of solder disposed on a dielectric surface, wherein the dielectric surface exhibits a de-wetting characteristic relative to the solder such that, when the solder is melted, the solder draws away from the dielectric surface to create a galvanic opening.
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公开(公告)号：US10892645B2
公开(公告)日：2021-01-12
申请号：US16585033
申请日：2019-09-27
发明人： Sichao Liu , Jinbiao Huang , Dongdong Yuan
IPC分类号： H02J50/10 , H02J7/02 , G01R31/302 , H02J50/60 , G01R31/50
摘要： A device includes a positive current sense amplifier having two inputs connected to a drain and a source of a power switch respectively through a plurality of positive current sense switches, and a negative current sense amplifier having two inputs connected to the drain and the source of the power switch respectively through a plurality of negative current sense switches.
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公开(公告)号：US10884066B2
公开(公告)日：2021-01-05
申请号：US15895218
申请日：2018-02-13
发明人： Jung Hwan Park
IPC分类号： G06F11/30 , G01R31/389 , G01R31/36 , G01R31/392 , G01R31/50
摘要： The present invention provides an insulation resistance measurement method capable of accurately measuring an insulation resistance even though insulation breakdown occurs in both ends of a battery by improving an insulation resistance measurement algorithm in spite of utilizing an existing insulation resistance measurement circuit as it is in measuring insulation breakdown of the battery.
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公开(公告)号：US10859635B2
公开(公告)日：2020-12-08
申请号：US16077586
申请日：2017-02-20
发明人： Tomoyuki Matsubara , Masaki Yugou
IPC分类号： G01R31/36 , G01R31/396 , B60L58/12 , G01R35/00 , H01M10/42 , G01R31/3835 , H01M10/48 , G01R19/00 , H02J7/00 , G01R31/50 , B60K6/28
摘要： A first voltage detection circuit is connected by first voltage detection lines to each node in a plurality of cells connected in series and detects the voltage of each of the plurality of cells. A second voltage detection circuit is connected, by second voltage detection lines, to each node in the plurality of cells and detects the voltage of each of the plurality of cells. First capacitance elements are each connected between two first voltage detection lines connected to each cell. Second capacitance elements are each connected between two second voltage detection lines connected to each cell. A first charge drawing circuit draws charge from each node in the plurality of cells, via each first voltage detection line. A second charge drawing circuit draws charge from each node in the plurality of cells, via each second voltage detection line.
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公开(公告)号：US10852801B2
公开(公告)日：2020-12-01
申请号：US15706627
申请日：2017-09-15
摘要： Example implementations relate to determining a failure event of a power supply. In some examples, an apparatus may comprise logic circuitry coupled to a signal line, the logic circuitry to receive a monitor signal via the signal line, where the monitor signal corresponds to an internal voltage of a power supply that is consumed wholly by the power supply, compare the monitor signal to a reference signal, and determine, based on the comparison, whether a failure event has occurred in the power supply.
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公开(公告)号：US10852326B2
公开(公告)日：2020-12-01
申请号：US15672762
申请日：2017-08-09
IPC分类号： H02H3/00 , H01H73/00 , G01R19/00 , G01R19/165 , G01R19/20 , H02H1/00 , H01H83/22 , G01R31/50 , G11C7/06 , H03F3/45 , H02H3/16 , H01H83/20 , H01H83/14 , H02H3/10 , H02H3/08 , H02H3/33
摘要： The line power and neutral conductors for a circuit interrupter such as a miniature circuit breaker, using ground fault sensing via a current transformer, are arranged as a rigid conductor formed from a flat plate and surrounding and holding an insulated flexible conductor when passing through the Ground Fault Interrupter current transformer. The rigid conductor can provide a shaped current path to maximize the effectiveness of the current transformer.
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公开(公告)号：US10809300B2
公开(公告)日：2020-10-20
申请号：US16339425
申请日：2017-11-03
发明人： Peter Oehler , Frank Michel
摘要： A method for checking a control circuit for an inductive load, wherein one or two currents are measured and evaluated. An arrangement for carrying out such a method is also disclosed.
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78.发明授权公开(公告)号：US10809291B2
公开(公告)日：2020-10-20
申请号：US15565190
申请日：2016-02-29
申请人： Robert Bosch GmbH
发明人： Christian Bohne , Juergen Motz , Matthias Horn
摘要： A method for detecting correct connection of at least one energy reservoir to a vehicle electrical system of a motor vehicle. The method includes: ascertaining a voltage dropping at the energy reservoir, and/or a current flowing through the energy reservoir, and/or a voltage present at a terminal as a representative of the electrical system voltage, when the electrical system voltage exceeds or falls below at least one desired voltage, preferably as a function of at least one magnitude characteristic of the energy reservoir, such as an open-circuit voltage or gassing voltage; comparing the ascertained magnitude, such as the voltage and/or current, with at least one limit value; correct connection of the energy reservoir to the vehicle electrical system, or at least one fault, is inferred as a function of the comparison.
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公开(公告)号：US10797479B2
公开(公告)日：2020-10-06
申请号：US15439438
申请日：2017-02-22
申请人： ABB Schweiz AG
发明人： Shawn Alan Morgan , Lathom Alexander Louco , Jeffrey Marcel Kubascik , Lucas Ray Mallory , Craig Benjamin Williams
IPC分类号： H02H3/00 , H02H9/08 , H02H1/00 , H02H7/26 , H02H3/28 , H02H3/32 , G01R19/25 , G01R31/50 , H02H3/33 , H02H3/16
摘要： A method of operating an electrical power distribution system including a plurality of circuit protection devices and an additional circuit protection device communicatively coupled by a communications network is described. The method includes transmitting, by each circuit protection device of the plurality of circuit protection devices, an electrical current communication to the communication network, the electrical current communication including an indication of an electrical current detected by the transmitting circuit protection device formatted according to a network communication protocol of the communication network. The additional circuit protection device receives the electrical current communications from the plurality of circuit protection devices and determines, based on the received electrical current communications, whether a ground fault condition exists in the electrical power distribution system.
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公开(公告)号：US10788562B2
公开(公告)日：2020-09-29
申请号：US16566104
申请日：2019-09-10
申请人： Bender GmbH & Co. KG
发明人： Dieter Hackl
摘要： Methods and devices are provided for testing the function of a standard insulation monitoring device, installed in an ungrounded power supply system, during operation. The basic concept of the invention rests upon adding a testing apparatus to the ungrounded power supply system, which is being monitored using an insulation monitoring device according to regulations, between the active conductors of an ungrounded power supply system and ground, said testing apparatus systematically changing an insulation resistance of the ungrounded power supply system and observing the reaction of the insulation monitoring device in a fully automated manner in perpetually repetitive testing cycles. The power supply system is monitored perpetually during its operation. In the method, the current operating state (insulation level, load state) of the power supply system is detected via network parameters, such as insulation resistance and system leakage capacity, and consulted for assessing the functionality of the insulation monitoring device.
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