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公开(公告)号：US20240361362A1
公开(公告)日：2024-10-31
申请号：US18767125
申请日：2024-07-09
发明人： Manabu TAMURA , Chiaki UEDA
CPC分类号： G01R19/0092 , G01R1/07 , G01R1/18
摘要： A current sensor includes units each of which has a bus bar through which current flows, a magnetic sensor facing one of plate surfaces of the bus bar, a shield facing the other plate surface. The units have a large-current unit and a small-current unit. A first distance between the bus bar and the magnetic sensor in a normal direction of the plate surfaces of the bus bar is the same as a distance L1A of the large-current unit and a distance L1B of the small-current unit. Since, as for a second distance between the bus bar and a base of the shield, a distance L2A of the large-current unit is larger than a distance L2B of the small-current unit, a measurement range of the large-current unit is widened and a measurement error due to magnetic saturation of the shield is suppressed.
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公开(公告)号：US20240361360A1
公开(公告)日：2024-10-31
申请号：US18306333
申请日：2023-04-25
CPC分类号： G01R15/207 , G01R19/0092 , G01R19/10
摘要： A current sensing apparatus includes a planar current conductor with a current shaping section, designed to carry an alternating current (AC) current with a maximum frequency. The current shaping section of the conductor consists of a pair of adjacent legs separated by a slot, which shapes the AC current to flow around the slot in opposite directions. The legs of the current conductor have a width no greater than twice the skin depth of the AC current at a frequency of at least half of the maximum frequency. The apparatus also includes a differential current sensor that measures the directional components of the AC current on opposite sides of the slot. This configuration allows for accurate current sensing while minimizing the effect of the skin effect at high frequencies, making it suitable for use in various applications where a broad range of fundamental frequencies are expected.
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3.发明公开公开(公告)号：US20240361356A1
公开(公告)日：2024-10-31
申请号：US18140456
申请日：2023-04-27
发明人： Aleksey Khenkin , Michael J. Murphy
CPC分类号： G01R1/203 , G01R19/0092
摘要： A thin-film resistor circuit for an integrated circuit provides low resistance by segmenting a thin-film resistor to provide a wider effective thin-film resistor in a smaller die. The die includes a substrate, multiple electronic devices integrated on the substrate and interconnected to form at least a portion of an electronic circuit, a plurality of interconnect lands arranged in a grid that interconnect the devices with external terminals, and a thin-film resistor implemented by two or more thin-film resistor segments that operate in parallel in the circuit. The segments are disposed between different pairs of adjacent columns of the grid interconnect lands, with one of the thin-film resistor segments electrically connected along its width to lands of a first column of the grid of interconnect lands, and another one of the thin-film resistor segments is electrically connected along its width to lands of a second column of the grid interconnect lands.
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公开(公告)号：US20240361181A1
公开(公告)日：2024-10-31
申请号：US18573369
申请日：2022-07-22
申请人： PHOTONIC INC.
CPC分类号： G01J1/44 , G01J1/0252 , G01J1/0425 , G01R19/0092 , G01J2001/442
摘要： A single photon number resolving detector provides photon number resolution. The detector includes a waveguide which receives photons for detection. Nanowires are located in proximity to the waveguide. Each of the nanowires is connected in series with an electrically resistive component to provide a branch. Plural branches are electrically connected in parallel with one another. A power source is connectable to deliver an electrical current to flow through the branches. A current monitor is connected to monitor a magnitude of the total electrical current in the plurality of branches. At an operating temperature of the detector the nanowires are superconducting and each branch has an electrical time constant which is small enough to cause latching of the branch to a latched state when the nanowire of the branch absorbs a photon from the waveguide. The number of photons detected can be determined from the magnitude of the current which depends on the number of branches in the latched state.
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公开(公告)号：US12130311B2
公开(公告)日：2024-10-29
申请号：US18081134
申请日：2022-12-14
发明人： Derek Bernardon , Thomas Ferianz
CPC分类号： G01R19/0092 , H02M1/0009 , H02M1/32
摘要： Current sense circuitry includes: a current mirror circuit for sensing a power transistor current; a capacitor directly connected to the current mirror circuit at a first node; and a comparator circuit having a first input electrically connected to an input terminal of the current mirror circuit, a second input electrically connected to a drain or source terminal of the power transistor, and an output that is in a first state when a voltage at the first input is higher than a voltage at the second input and in a second state when the voltage at the first input is lower than the voltage at the second input. Current is sourced to the first node if the power transistor is on and the comparator output is in the second state, and sunk from the first node if the power transistor is on and the comparator output is in the first state.
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公开(公告)号：US12130310B2
公开(公告)日：2024-10-29
申请号：US17806498
申请日：2022-06-12
发明人： Wen-Shang Lai , Fu-Yuan Shih
IPC分类号： G01R19/00 , G01K7/00 , H03K17/08 , H03K17/082
CPC分类号： G01R19/0084 , H03K17/0822 , G01K7/00 , H03K17/08
摘要： A power module device, comprising a main switch and a detection unit. The main switch is electrically connected between a first detection node and a second detection node. The first detection node and the second detection node are electrically connected between a plurality of power supply nodes, and are substantially two ends of the main switch. When the main switch is turned on, the main switch is configured to transmit a current flowing through the plurality of power supply nodes. The detection unit is electrically connected to the first detection node and the second detection node, and configured to detect a voltage across the two ends of the main switch to generate a detection voltage.
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7.发明公开公开(公告)号：US20240356094A1
公开(公告)日：2024-10-24
申请号：US18685464
申请日：2022-12-08
发明人： Muyeon LEE
CPC分类号： H01M10/482 , G01R19/0053 , H01M10/4264 , H01M2010/4271 , H01M2010/4278
摘要： The present invention relates to a battery management system, an energy storage device, and a battery system for removing noise in Controller Area Network (CAN) communication, and the battery management system is for managing a battery pack having a plurality of battery cells connected in series, the battery management system including: a variable capacitor which is connected between a Controller Area Network (CAN) communication line and a ground and in which capacitance corresponding to a level of received voltage is accommodated; a switching unit including a plurality of resistors connected between an external power source and the ground and a plurality of switches electrically connecting each of the plurality of resistors and the variable capacitor; and a control unit for controlling the switching unit so that a voltage of the external power source is transmitted to the variable capacitor.
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公开(公告)号：US20240354059A1
公开(公告)日：2024-10-24
申请号：US18761402
申请日：2024-07-02
发明人： Sungmeen MYUNG , Sangjoon KIM , Seungchul JUNG
CPC分类号： G06F7/5443 , G01R19/0046 , G06F13/4022 , G06F13/4282 , G06N3/04 , G11C11/161 , G11C11/1673 , G11C11/54
摘要： A neuromorphic device includes a plurality of resistor lines, each comprising a plurality of resistors that are serially connected to each other; one or more current sources configured to control a current flowing in each of the resistor lines to a respective current value; a plurality of capacitors configured to be electrically connected to each of the resistor lines and to sample respective voltage of each of the resistor lines representing results of neuromorphic operations; and a switch configured to connect the plurality of the capacitors in parallel after the sampling the respective voltage of each of the resistor lines, to output a sum of the results of neuromorphic operations.
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公开(公告)号：US12126286B2
公开(公告)日：2024-10-22
申请号：US18068947
申请日：2022-12-20
发明人： Zihui Wang , Weigong Zhao , Zhiyuan He , Jiongjiong Cai , Zhentao Qian
IPC分类号： B60B27/00 , G01R1/04 , G01R19/00 , G01R19/165 , G01R31/28 , H02P25/024 , H02P27/04 , H02P29/028
CPC分类号： H02P25/024 , G01R1/0416 , G01R19/003 , G01R19/16538 , G01R31/2829 , G01R31/2836 , H02P27/047 , H02P29/028 , B60B27/0068
摘要： The present invention belongs to the technical field of electric automobiles and particularly relates to a fault tolerance decision-making method and system for sensor failure of a vehicular wheel hub driving system. The method comprises a current sensor failure diagnostic process, a position/velocity sensor failure diagnostic process and a selection process for a wheel hub motor fault tolerance control method. The system comprises a current sensor failure diagnostic module, a position/velocity sensor failure diagnostic module and a selection module for a wheel hub motor fault tolerance control method. The position/velocity sensor failure diagnostic module further comprises a fault tolerance control switching module. The present invention has the characteristics of establishing a control strategy decision-making mechanism oriented to random complicated current and position sensor failure conditions and designing a multivariable decision-making model according to a vehicular velocity range and a sensor fault condition to realize a fault tolerance control process compatible with a full velocity range.
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公开(公告)号：US12123898B1
公开(公告)日：2024-10-22
申请号：US17968156
申请日：2022-10-18
申请人： XL Scientific, LLC
发明人： Jacob L Lowe , Matthew Domonkos , John J Osowski
CPC分类号： G01R15/181 , G01R19/0092
摘要： A method and apparatus for sending current. A flow of current can be passed through a portion of the sensor, such that the sensor forms part of the current flow circuit. The sensor can be especially useful in high vacuum environments and/or in areas where a small sensor is desired. In one embodiment, the current sensor can form part of a ground circuit and a leg of the sensor can comprise a leg of the drive circuit. A current sensing loop of the sensor can at least partially encircle a portion of the sensor itself such that the current sensing loop senses current flowing through the sensor.
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