公开(公告)号：US12236904B2

公开(公告)日：2025-02-25

申请号：US18743176

申请日：2024-06-14

Applicant: X-SIGNAL INTEGRATED CO., LTD.

Inventor： Guanou Yang ,  Huijiao Jin

IPC: G09G3/34 ,  G01R19/25

Abstract: An LED backlight driving circuit with a voltage regulating unit is provided. The LED backlight driving circuit includes a power supply unit, an LED string, an ADC voltage detection circuit, and a driving controller; the ADC voltage detection circuit is used to detect a voltage value Vled of a negative terminal of a LED string, and the ADC voltage detection circuit includes an ADC sampling module that converts the measured voltage value Vled at the negative terminal of the LED string into a voltage numerical code; for the numerical code of the negative terminal voltage value Vled measured by the ADC sampling module, a first threshold V1 and a second threshold V2 are set.

公开(公告)号：US12235310B2

公开(公告)日：2025-02-25

申请号：US16760843

申请日：2017-12-29

Applicant: Hitachi Energy Ltd

Inventor： Obbalareddi Demudu Naido ,  Neethu George ,  Nandkishor Kubal

IPC: G01R31/08 ,  G01R19/25 ,  G06F16/25

Abstract: A system can be used for analyzing fault data in a power transmission network with a plurality of power transmission lines. A number of power system devices are distributed across the power transmission network. Each power system device performs one or more of measurement of data to generate measured data and processing of the measured data to generate processed data in response to a condition in a corresponding segment of the power transmission network. The system includes a data aggregator, a data analyzer, and a fault locator.

公开(公告)号：US12235292B2

公开(公告)日：2025-02-25

申请号：US17929150

申请日：2022-09-01

Applicant: Anamitra Pal ,  John Patterson

Inventor： Anamitra Pal ,  John Patterson

IPC: G01R19/25 ,  G01R19/00 ,  G01R19/165 ,  H02J50/00

Abstract: A time-synchronized micro-scale continuous point-on-wave (CPoW) measurement device, referred to as micro-CPoW, is provided. The distribution system is an integral part of the electric power system, but not much is known about how it behaves in real-time. To address this knowledge gap, a low-cost, time-synchronized, CPoW measurement system is designed, built, and characterized herein. The purpose of the micro-CPoW measurement device is to monitor the instantaneous electric current flowing through a distribution line in real time. Detection of harmonics, identification of incipient fault conditions, and general power quality monitoring are typical uses for the measured information. Because the micro-CPoW measurement device is self-powered by the line current and communicates wirelessly, it can be installed without ground-mounted instrument transformers, low-voltage power sources, or communications cabling. Thus, this particular design of CPoW module is intended to be installed directly on a power line without the need for external support equipment.

公开(公告)号：US12224585B2

公开(公告)日：2025-02-11

申请号：US17753766

申请日：2019-09-12

Applicant: The University of Hong Kong

Inventor： Wing Tat Pong ,  Ke Zhu ,  Qi Xu

IPC: G01R13/00 ,  G01R19/25 ,  H02J3/00 ,  H02J3/12 ,  H02J13/00

Abstract: A method and system are provided for anomaly detection in energy systems. Non-contact sensing of an energy system based on electric and magnetic fields uses non-contact electric- and magnetic-field sensors to produce electric- and magnetic-field signals. The electric and magnetic field signals are filtered to remove noise. Features are extracted and normalized from the magnetic and electric field signals to characterize parameters of each signal. Density-based spatial clustering of extracted features is performed using a selected minimum number of points required to form a cluster and a parameter indicating the distance within which data are considered to fall within the cluster. An anomaly is determined from data point(s) that do not fall within the cluster formed by data points in normal operation. The density-based spatial clustering of extracted features may be performed using a Density-Based Spatial Clustering of Application with Noise (DBSCAN) algorithm. Features may be extracted using Fourier analysis.

公开(公告)号：US20250026222A1

公开(公告)日：2025-01-23

申请号：US18355085

申请日：2023-07-19

Applicant: GM Global Technology Operations LLC

Inventor： Bharatkumar Hegde ,  Ibrahim Haskara ,  Philip James Prociw ,  Chen-fang Chang

IPC: B60L53/62 ,  G01R19/25 ,  H01M10/44 ,  H01M10/48

Abstract: An electric vehicle includes a system for charging a battery of the electric vehicle. The system includes a sensor for obtaining a reference measurement of the battery during charging and a processor. The processor is configured to calculate an augmented state from the reference measurement, determine an anode voltage from the augmented state, compare the anode voltage to a threshold, and adjust a charging rate based on the comparison of the anode voltage to the threshold.

公开(公告)号：US20250006477A1

公开(公告)日：2025-01-02

申请号：US18605110

申请日：2024-03-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Haewook PARK ,  Juhyun KIM ,  Younsok CHOI

IPC: H01J37/32 ,  G01R19/25 ,  H01L21/683

Abstract: A plasma diagnosis apparatus comprising; an upper substrate, a lower substrate stacked with the upper substrate, at least one probe on the upper substrate, a plasma diagnosis circuit mounted in the lower substrate and configured to diagnose plasma in a chamber through the probe, a wireless communication circuit mounted in the lower substrate and configured to wirelessly transmit a result of the plasma diagnosis circuit to an external device, a battery mounted in the lower substrate and configured to supply power to the plasma diagnosis circuit and the wireless communication circuit, and a wireless charging circuit mounted in the lower substrate and configured to wirelessly charge the battery. The plasma diagnosis circuit includes a transformer, a first circuit connected to a primary wound line of the transformer, a second circuit connected between a secondary wound line of the transformer and the probe, a current detection circuit connected to the primary wound line of the transformer, and a signal processing circuit configured to generate data with diagnostic characteristics of the plasma based on an output of the current detection circuit.

公开(公告)号：US12174240B2

公开(公告)日：2024-12-24

申请号：US18062125

申请日：2022-12-06

Applicant: International Business Machines Corporation

Inventor： Layne A. Berge ,  Matthew Doyle ,  Kyle Schoneck ,  Thomas W. Liang ,  Matthew A. Walther ,  Jason J. Bjorgaard ,  John R. Dangler

IPC: H01L21/44 ,  G01R19/25 ,  G01R31/28 ,  H01L21/48 ,  H01L21/50 ,  H01L23/00 ,  H01L23/498 ,  H01L25/065 ,  B23K101/42

Abstract: Electrical current flow in a ball grid array (BGA) package can be measured by an apparatus including an integrated circuit (IC) electrically connected to the BGA package. Solder balls connect the BGA package to a printed circuit board (PCB) and are arranged to provide a contiguous channel for a current sense wire. A subset of solder balls is electrically connected to supply current from the PCB through the BGA package to the IC. The current sense wire is attached to the upper surface of the PCB, within the contiguous channel, and surrounds the subset of solder balls. An amplifier is electrically connected to the current sense wire ends to amplify a voltage induced on the current sense wire by current flow into the BGA package. A sensing analog-to-digital converter (ADC) is electrically connected to convert a voltage at the output of the amplifier into digital output signals.

公开(公告)号：US12164351B2

公开(公告)日：2024-12-10

申请号：US17587120

申请日：2022-01-28

Applicant: SIGMASENSE, LLC.

Inventor： Patrick Troy Gray ,  Gerald Dale Morrison ,  Daniel Keith Van Ostrand ,  Richard Stuart Seger, Jr.

IPC: G06F11/30 ,  G01R19/25 ,  G05F1/10 ,  G06F1/26 ,  G06F1/3234 ,  G06F3/041 ,  H02M1/14 ,  G06F1/3203

Abstract: A power supply signal conditioning system includes a power supply, one or more loads, and a drive-sense circuit (DSC). The power supply is operably coupled to one or more loads. When enabled, the power supply configured to output a power supply signal having a DC (direct current) voltage component and a ripple voltage component that is based on conversion of an AC (alternating current) signal in accordance with generating the power supply signal. The DSC is operably coupled to the power supply. When enabled, the DSC is configured simultaneously to sense the power supply signal and, based on sensing of the power supply signal, adaptively to process the power supply signal in accordance with reducing or eliminating the ripple voltage component of the power supply signal to generate a conditioned power supply signal to service the one or more loads.

公开(公告)号：US20240393373A1

公开(公告)日：2024-11-28

申请号：US18787862

申请日：2024-07-29

Applicant: Applied Materials, Inc.

Inventor： David Coumou ,  Xiaopu Li ,  Michelle SanPedro

IPC: G01R19/00 ,  G01R15/18 ,  G01R19/165 ,  G01R19/25

Abstract: Embodiments disclosed herein include a sensor. In an embodiment, the sensor comprises a board, wherein an aperture is formed through the board, a current loop winding through the board around the aperture, and a voltage ring around the aperture and within an inner perimeter of the current loop, wherein the voltage ring comprises an interior ring, an insulator ring around the interior ring, and an exterior ring around the insulator ring.

公开(公告)号：US12153098B2

公开(公告)日：2024-11-26

申请号：US17919372

申请日：2022-02-07

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jae Woong Yoo ,  Sun Yong Shin ,  Jeong Min Lee

IPC: G01R31/52 ,  G01R19/165 ,  G01R19/25 ,  H01M10/42

Abstract: An apparatus for inspecting a failure of an electrode assembly before injecting an electrolyte includes a short-circuit tester configured to detect a short circuit of the electrode assembly by applying a predetermined voltage to a positive electrode and a negative electrode of the electrode assembly; a multimeter electrically connected to the short-circuit tester and configured to measure a voltage and a current of the electrode assembly over time; and a failure determination part connected to the multimeter and configured to monitor changes in voltage and current measured by the multimeter and determine a type of a failure of the electrode assembly from data on the changes in voltage and current over a predetermined period of time. A method of inspecting a failure of an electrode assembly using the same is also provided.