公开(公告)号：US20240361360A1

公开(公告)日：2024-10-31

申请号：US18306333

申请日：2023-04-25

Applicant: GM Global Technology Operations LLC

Inventor： Muhammad Hussain Alvi ,  Suresh Gopalakrishnan ,  Chunhao J. Lee ,  Dongxu Li

IPC: G01R15/20 ,  G01R19/00 ,  G01R19/10

CPC classification number: G01R15/207 ,  G01R19/0092 ,  G01R19/10

Abstract: 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.

公开(公告)号：US12130320B2

公开(公告)日：2024-10-29

申请号：US18000455

申请日：2021-06-01

Applicant: Osaka University

Inventor： Tsuyoshi Sekitani ,  Takafumi Uemura ,  Shuichi Tsuruta

IPC: G01R29/26 ,  G01R15/04 ,  G01R19/10 ,  G01R35/00

CPC classification number: G01R29/26 ,  G01R15/04 ,  G01R19/10 ,  G01R35/005

Abstract: A measuring device facilitates equipment calibration. A measuring device for measuring noise contained in equipment having a prescribed resistance value is provided with a first voltage-dividing circuit connected to a direct-current power source, a second voltage-dividing circuit connected in parallel with the first voltage-dividing circuit, and a measuring unit which measures a first voltage-divided voltage output from the first voltage-dividing circuit, and a second voltage-divided voltage output from the second voltage-dividing circuit, a calculating unit which calculates the difference between the measured first voltage-divided voltage and second voltage-divided voltage, and an output unit which outputs the calculated result, wherein: the first voltage-dividing circuit outputs the first voltage-divided voltage from the equipment and a first resistor, connected in series.

公开(公告)号：US20240353214A1

公开(公告)日：2024-10-24

申请号：US18630778

申请日：2024-04-09

Applicant: KLA Corporation

Inventor： Kurt Rubin ,  Chris Persico ,  Oskar Amster

IPC: G01B5/28 ,  G01R19/10 ,  G05D3/12

CPC classification number: G01B5/28 ,  G01R19/10 ,  G05D3/124

Abstract: The system includes a processor configured to energize a pair of torque coils with a force signal to generate a magnetic force between the pair of torque coils and an internal magnet of a control arm disposed between the pair of torque coils. The control arm is connected to a probe arm, and the magnetic force causes the control arm and the probe arm to rotate about a pivot joint and causes a probe tip of the probe arm to contact a surface of a sample. After energizing the sensing subsystem with an excitation signal, the processor receives a sensing signal difference from the sensing subsystem that is proportional to the rotational position of the control arm, which corresponds to a height of the probe tip relative to the surface of the sample.

公开(公告)号：US20240337701A1

公开(公告)日：2024-10-10

申请号：US18289337

申请日：2023-01-03

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Soon Jong KIM ,  Jeong Bin LEE

IPC: G01R31/392 ,  G01R19/00 ,  G01R19/10 ,  G01R19/30 ,  G01R31/367 ,  G01R31/3842 ,  G01R31/396

CPC classification number: G01R31/392 ,  G01R19/003 ,  G01R19/10 ,  G01R19/30 ,  G01R31/367 ,  G01R31/3842 ,  G01R31/396

Abstract: The present invention discloses an apparatus and method for detecting a deteriorated battery cell including a measurement unit that measures a state of a battery, an estimation unit that estimates a state of health (SOH) of the battery, a diagnosis setting unit that sets a diagnosis start condition, a diagnosis section, and a determination condition of the deteriorated battery cell according to the SOH of the battery, a diagnosis performance decision unit that determines a detection performance condition of the deteriorated battery cell after an end of charging/discharging of the battery, and a deterioration determination unit that determines the deteriorated battery cell by calculating a voltage difference in the charging and discharging end section and comparing the measurement value with a set value.

公开(公告)号：US20240329138A1

公开(公告)日：2024-10-03

申请号：US18608716

申请日：2024-03-18

Applicant: Samsung SDI Co., Ltd.

Inventor： Seonghun Park

IPC: G01R31/327 ,  G01R19/10 ,  H01M10/42 ,  H01M10/48

CPC classification number: G01R31/3275 ,  G01R19/10 ,  H01M10/425 ,  H01M10/482 ,  H01M2010/4271

Abstract: A battery pack includes first and second pack terminals, a battery between first and second battery terminals, a main switch between the first pack terminal and the first battery terminal, a first resistor and a first insulated switch in series between the first battery terminal and a ground, a second resistor and a second insulated switch in series between the second battery terminal and the ground, and a controller to control the first and second insulated switches to alternately repeat a first state, in which the first insulated switch is closed and the second insulated switch is opened, and a second state, in which the first insulated switch is opened and the second insulated switch is closed, detect a first terminal voltage, control the main switch, and determine whether the main switch malfunctions based on a difference between the first terminal voltage in the first and second states.

公开(公告)号：US12095302B2

公开(公告)日：2024-09-17

申请号：US17578067

申请日：2022-01-18

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Yonghyun Kim

IPC: H02J7/00 ,  B62D5/04 ,  G01R19/10 ,  G07C5/08

CPC classification number: H02J7/00712 ,  B62D5/0481 ,  G01R19/10 ,  G07C5/0816

Abstract: A vehicle includes a battery, a motor supplied with an input voltage, an inverter configured to boost the input voltage supplied to the motor to output to the battery, a voltage measuring device configured to measure the input voltage, a switching device connected to a neutral point of the motor, and a controller that determines whether fusion of the switching device occurs, repeats on/off of the switching device based on the determination result, measures a first voltage applied to the voltage measuring device, measures a second voltage applied to the voltage measuring device after discharging the voltage measuring device, compares the first voltage with the second voltage, and charges the battery when the fusion of the switching device is released based on the comparison result.

公开(公告)号：US12092653B2

公开(公告)日：2024-09-17

申请号：US17472126

申请日：2021-09-10

Applicant: STMicroelectronics, Inc.

Inventor： Davy Choi ,  Yamu Hu ,  Deyou Fang

IPC: G01P21/00 ,  G01P15/125 ,  G01R19/10 ,  G01R31/28

CPC classification number: G01P21/00 ,  G01P15/125 ,  G01R19/10 ,  G01R31/2829

Abstract: In one embodiment, a method for detecting functional state of a microelectromechanical (MEMS) sensor is described. The method includes monitoring an input common-mode feedback (ICMFB) voltage generated by an ICMFB circuit coupled to the MEMS sensor through a plurality of nodes. The method also includes determining, using the monitored ICMFB voltage, whether all of the plurality of nodes of the MEMS sensor are electrically connected to the ICMFB circuit.

公开(公告)号：US12069800B2

公开(公告)日：2024-08-20

申请号：US17469489

申请日：2021-09-08

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Andreas Ziegler ,  Stefan Ketzer

IPC: H05K1/00 ,  G01R19/10 ,  H05K1/02 ,  H05K3/00

CPC classification number: H05K1/0271 ,  G01R19/10 ,  H05K1/0254 ,  H05K3/0044 ,  H05K2201/09063

Abstract: The present disclosure provides a circuit board arrangement comprising a main board comprising at least one longitudinal cutout, at least one reinforcing plate arranged in the at least one longitudinal cutout and mechanically coupled to the main board, wherein the plane of main extension of the main board is arranged perpendicular to the plane of main extension of the at least one reinforcing plate. Further, the present disclosure provides a differential probe circuit and a respective method.

公开(公告)号：US20240272207A1

公开(公告)日：2024-08-15

申请号：US18465954

申请日：2023-09-12

Applicant: NANJING UNIVERSITY

Inventor： Hao QIU ,  Xusheng ZHANG ,  Yi SHI

IPC: G01R19/10 ,  H02J50/12

CPC classification number: G01R19/10 ,  H02J50/12

Abstract: Disclosed in the present application are an AC current sensor and a wireless charging chip. The AC current sensor includes an integrator circuit, a differentiator circuit, and a calibration circuit. The integrator circuit is configured to perform integration on a voltage on which filter processing is performed across an inductor in a TX coil. The differentiator circuit is configured to perform differentiation on a voltage on which filter processing is performed across a capacitor in the TX coil. The calibration circuit is configured to sample and compare output signals of the integrator circuit and the differentiator circuit, and adjust output results of the integrator circuit and the differentiator circuit until the output results are the same. In this case, the output result of the differentiator circuit may be used to calculation for a current flowing through the TX coil.

公开(公告)号：US20240259011A1

公开(公告)日：2024-08-01

申请号：US18630020

申请日：2024-04-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Robert Allan NEIDORFF ,  Robert Kenneth OPPEN

IPC: H03K17/0812 ,  G01K7/00 ,  G01R19/10 ,  H03K17/08

CPC classification number: H03K17/0812 ,  G01K7/00 ,  G01R19/10 ,  H03K2017/0806

Abstract: In at least one example, an apparatus includes a logic circuit having a switch control output and first and second logic circuit inputs. A pulse generator has a generator output coupled to the first logic circuit input. An elevated temperature detector has a detector output and a temperature sensor. The detector output is coupled between the second logic circuit input and the temperature sensor.