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1.发明公开公开(公告)号：US20240321540A1
公开(公告)日：2024-09-26
申请号：US18186984
申请日：2023-03-21
发明人： Guang Yang
CPC分类号： H01H71/123 , H02H3/04 , H02H3/202
摘要： A DC solid-state circuit breaker is provided with fail-safe redundancy. The DC solid-state circuit breaker comprises an air gap disposed in series to first and second power electronics switching modules. The DC solid-state circuit breaker further comprises a sensing and control circuit configured to realize designed functions. The DC solid-state circuit breaker further comprises first and second overvoltage protection devices connected in series for overvoltage or surge protection for the sensing and control circuit such that both the first and second overvoltage protection devices have threshold voltages higher than a system voltage. The DC solid-state circuit breaker further comprises a load side overvoltage protection device provided for overvoltage protection after switching OFF.
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公开(公告)号：US12021368B2
公开(公告)日：2024-06-25
申请号：US17731669
申请日：2022-04-28
发明人： Shan-Chun Yang , Mu-Bo Chang , Kuan-Lung Wu
摘要： A surge protection apparatus includes a chassis, a surge circuit breaker, and a surge protection module. The chassis has an accommodating space and an opening, and the opening is communicated with the accommodating space. The surge circuit breaker is disposed in the accommodating space. The surge protection module is configured to be electrically connected to a second connector in the chassis, and the second connector is electrically connected to the surge circuit breaker. The surge protection module extends in a first axis, and the surge protection module is plugged in or pulled out of the chassis through the opening along the first axis. The surge protection module includes a first connector detachably connected to the second connector.
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公开(公告)号：US11993479B2
公开(公告)日：2024-05-28
申请号：US17672150
申请日：2022-02-15
申请人： KONE Corporation
发明人： Mikko Paakkinen , Lauri Stolt , Tuukka Kauppinen
摘要： An electrical converter unit and a method for reducing thermal stress of a power semiconductor switch, such as an IGBT, of an electrical converter unit, the electrical converter unit comprising at least a gate control circuit wherein the electrical converter unit controls an electrical motor. The method comprises determining load and estimating required motor current based on the determined load and/or a predetermined speed profile. The electrical converter unit has at least a first operating state and a second operating state. The second operating state is used if predetermined criteria is fulfilled, the predetermined criteria relating to at least one of the following: estimated required current, measured motor speed, temperature of the power semiconductor switch and/or electrical converter unit, temperature model of the power semiconductor switch and/or electrical converter unit. In the second operating state a lower switching frequency of the power semiconductor switch is used than in the first operating state, and in the second operating state a higher switching speed of the power semiconductor switch is used than in the first operating state.
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公开(公告)号：US20240125828A1
公开(公告)日：2024-04-18
申请号：US18547060
申请日：2022-02-22
发明人： Steven Zanft
IPC分类号： G01R19/25 , G01R19/165 , G01R19/252 , G01R27/16 , G01R31/58 , H02H3/04 , H02H7/22
CPC分类号： G01R19/2513 , G01R19/16576 , G01R19/252 , G01R27/16 , G01R31/58 , H02H3/042 , H02H7/226
摘要： In one embodiment, a power supply comprises: a conversion circuit that outputs an output voltage at a first end of a cable; a remote voltage sensor measures a load delivered voltage from a second end of the cable; a control logic, wherein the power conversion circuit regulates the output voltage based on a signal from the control logic; a current sensor that measures current flow through the cable; and a resistance measurement circuit that computes a resistance of the cable as a function of the load delivered voltage, the current flow and the output voltage. The control logic regulates the load delivered voltage based on a voltage drop calculated utilizing the resistance. The control logic detects a change in the resistance of the cable based on the load delivered voltage and dynamically updates a value of the resistance for calculating the voltage drop when the change exceeds a tolerance.
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公开(公告)号：US11949201B2
公开(公告)日：2024-04-02
申请号：US17701112
申请日：2022-03-22
CPC分类号： H01R9/2441 , H02H3/04 , H02H9/042 , H02H9/02
摘要： A method for assembling a module configured to limit power surge exposure to an electrical device may include providing a carrier configured to receive at least one electrical conductor and at least one surge protection component. A lug defining a hollow space is provided in a pocket of the carrier, and an electrical lead of a surge protection component and an electrical conductor are provided in the hollow space of the lug. The method includes crimping the lug onto the electrical lead of the surge protection component and the electrical conductor such that the electrical lead and the electrical conductor are physically and electrically coupled to one another. The carrier may include multiple pockets receiving multiple lugs, and the multiple lugs may be crimped substantially simultaneously to physically and electrically couple corresponding pairs of electrical leads and conductors.
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公开(公告)号：US20240088642A1
公开(公告)日：2024-03-14
申请号：US18509734
申请日：2023-11-15
发明人： XIN ZHOU , Brian E. Carlson , Yanjun Feng , Jianyang Liu , Michael Stepian , Andrew L. Gottschalk , Santhosh Kumar Chamarajanagar Govinda Nayaka
IPC分类号： H02H3/08 , G01R15/20 , G01R31/327 , H02H1/00 , H02H3/04
CPC分类号： H02H3/08 , G01R15/202 , G01R31/3277 , H02H1/0007 , H02H3/04
摘要： A circuit interrupter including a current sensor having a normal sensor output and an over current detection output, a solid state switch module structured to have a closed state to allow current to flow through the circuit interrupter and an open state to interrupt current flowing through the circuit interrupter, a gate driver structured to control the solid state switch module including a desaturation function output, wherein the gate driver is structured to cause the solid state switch module to interrupt current flowing through the circuit interrupter when the DESAT function output changes to the on state, and an electronic trip circuit structured to output a trip signal to the gate driver when the normal sensor output reaches a first threshold level or the overcurrent detection output changes to the on state.
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公开(公告)号：US11901722B2
公开(公告)日：2024-02-13
申请号：US17014278
申请日：2020-09-08
申请人： TASCO, INC.
IPC分类号： H02H3/04 , H02H1/00 , G01R31/327 , G01R31/54 , H02H5/04
CPC分类号： H02H3/04 , G01R31/3277 , G01R31/54 , H02H1/0007 , H02H5/047
摘要： The present disclosure is directed to methods and apparatus that may collect information relating to a group of electrical power distribution wires, commonly referred to as an electrical branch circuit. Such methods can controllably cause a circuit breaker to open (clear) while keeping the branch circuit loaded within a predetermined set of parameters or specifications. Apparatus consistent with the present disclosure may use multiple high power resistive elements of different resistance values that are selectively connected to the branch circuit in a manner that provides a configurable limit to an available fault current when data relating to the branch circuit are collected and evaluated. Such methods can provide a positive indication to an electrician that allows the electrician to know that a particular electrical circuit has been de-energized before the electrician works on that particular electrical circuit.
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公开(公告)号：US20230408575A1
公开(公告)日：2023-12-21
申请号：US18450547
申请日：2023-08-16
申请人： Hubbell Incorporated
CPC分类号： G01R31/2827 , H02H3/044 , H01H83/04 , G01R31/52 , H01H2300/052 , H02H3/162 , H02H3/335 , H01H71/04 , H01H2071/044 , G01R31/50
摘要： A method of operating an auto-monitoring circuit of a circuit interrupting device. The method including monitoring one or more signals to determine an operating state of said circuit interrupting device; outputting a first signal having a first voltage level based on the operating state, wherein the first voltage level is greater than zero volts; and outputting, after outputting the first signal, a second signal having a second voltage level based on the operating state, wherein the second voltage level is greater than the first voltage level.
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公开(公告)号：US20230361550A1
公开(公告)日：2023-11-09
申请号：US18313031
申请日：2023-05-05
发明人： Igor Treyvas , Lathika Sreejesh
CPC分类号： H02H3/04 , B64D43/00 , H02J13/00036 , H02J13/00001 , B64D2221/00 , H02J2310/44
摘要： The present disclosure relates to systems and methods for simplified, more efficient and more reliable aircraft control. In particular, the present disclosure relates to more efficient use of display capabilities, in particular, of interactive displays in monitoring, control, and operation of aircraft systems. According to a particular aspect, a common operation of groups of circuit breakers in an aircraft electrical system, preferably by means of an interactive display, is provided. The interactive display may be hierarchically organized into plural levels of display windows showing different levels of detail. In accordance with another particular aspect, a general synoptics summary display showing a status overview of all aircraft systems on a single display window is provided.
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公开(公告)号：US20230352926A1
公开(公告)日：2023-11-02
申请号：US17731669
申请日：2022-04-28
发明人： Shan-Chun YANG , Mu-Bo CHANG , Kuan-Lung WU
摘要： A surge protection apparatus includes a chassis, a surge circuit breaker, and a surge protection module. The chassis has an accommodating space and an opening, and the opening is communicated with the accommodating space. The surge circuit breaker is disposed in the accommodating space. The surge protection module is configured to be electrically connected to a second connector in the chassis, and the second connector is electrically connected to the surge circuit breaker. The surge protection module extends in a first axis, and the surge protection module is plugged in or pulled out of the chassis through the opening along the first axis. The surge protection module includes a first connector detachably connected to the second connector.
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