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公开(公告)号：US20240345146A1
公开(公告)日：2024-10-17
申请号：US18753371
申请日：2024-06-25
发明人： Haohua Zhou , Mei Hsu Wong , Tze-Chiang Huang
IPC分类号： G01R27/16 , G01R31/30 , G01R31/319
CPC分类号： G01R27/16 , G01R31/30 , G01R31/31905
摘要： Systems, devices, and methods are described herein for measuring an impedance of a DUT using an integrated impedance measurement device. A system includes a plurality of measurement circuits, a FFT processor, and a controller. The measurement circuits are coupled to the DUTs. Each measurement circuit is configured to generate a clock signal for a respective DUT, detect a voltage of the respective DUT, and generate first voltage related data using the clock signal and the voltage. The FFT processor is coupled to the measurement circuits. The FFT processor is configured to convert the first voltage related data into second voltage related data using a fast Fourier transform for each measurement circuit. The controller is coupled to the measurement circuits and the FFT processor. The controller is configured to calculate an impedance using the second voltage related data for each measurement circuit and output the impedance to each DUT.
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公开(公告)号：US20240304420A1
公开(公告)日：2024-09-12
申请号：US18344307
申请日：2023-06-29
发明人： Siyoung Koh , Hadong Jin , Namkyun Kim , Seungbo Shim , Sungyong Lim , Sungyeol Kim
CPC分类号： H01J37/32183 , G01R27/16 , H01J37/32926 , H01J37/32935
摘要： An apparatus for providing radio frequency (RF) power includes a load having a process chamber, a RF power generator configured to provide the RF power through a cable electrically connected to the load, and a reflected power controller configured to detect reflected power from the load in a delivery mode and configured to control the RF power according to the reflected power that was detected.
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公开(公告)号：US12031896B2
公开(公告)日：2024-07-09
申请号：US17425414
申请日：2020-01-24
发明人： Nathan Swami , Walter Varhue , Vahid Farmehini
IPC分类号： B01L3/00 , G01N15/01 , G01N15/1031 , G01N33/483 , G01R27/16
CPC分类号： G01N15/1031 , B01L3/502715 , B01L3/502761 , G01N33/4833 , G01R27/16 , B01L2200/0647 , B01L2300/0627 , G01N15/01
摘要： Disclosed herein are methods and systems that facilitate the integration of on-chip impedance sensors and measurement circuitries for quantifying the impedance/frequency response of microfluidic device under the same, or similar, conditions used for particle manipulation. The methods and systems can use a microfluidic chip comprising a microfluidic channel with one or more electric-field-generating structures located therein, including a first electric-field-generating structure, wherein the one or more electric-field-generating structures is configured to selectively polarize or manipulate biologic or particle components flowing within the microfluidic channel. The method and system can also employ a circuit configured for automated determination and quantification of parasitic voltage drops during AC electrokinetic particle manipulation, without the need to use valuable biological samples or model particles. The determined impedance response can be used to assess efficacy of the microfluidic device geometry as well as to provide control signals to inform downstream cell separation decisions.
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4.发明公开公开(公告)号：US20240151758A1
公开(公告)日：2024-05-09
申请号：US18214098
申请日：2023-06-26
发明人： Ji Hyun PARK , Dong Wook YANG , Eun Ho LEE , Young Dae SHIM
IPC分类号： G01R27/16
CPC分类号： G01R27/16
摘要： Disclosed herein is an apparatus for measuring physical properties of hairpin coils, which includes a current sensor configured to apply a current for each frequency to a material of a hairpin coil to measure an induced current applied to the material, and a measurement processor configured to measure physical properties of the material by measuring an impedance of the material with the induced current measured by the current sensor and applying the impedance to a model established in the material.
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公开(公告)号：US11858436B2
公开(公告)日：2024-01-02
申请号：US16968486
申请日：2019-01-11
发明人： Nima Eslami , Alexander Harms , Daniel Keil
CPC分类号： B60R16/03 , G01R27/16 , G01R31/006 , G01R31/364 , G01R31/66 , H01M10/48
摘要： A method for predicting immanent damage to a connecting point between two electrical conductors in a motor vehicle electrical system is disclosed, wherein a value of an electrical variable is ascertained that is at least related to an electrical resistance of the connecting point, and wherein the prediction of the immanent damage is made depending on the value of the electric variable. The value of the electrical variable is repeatedly determined while the motor vehicle electrical system is in operation while an operating current of specified operating current strength flows through the connection point.
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公开(公告)号：US20230367343A1
公开(公告)日：2023-11-16
申请号：US18350881
申请日：2023-07-12
CPC分类号： G05F1/46 , G01R19/2513 , H04W4/80 , G01R27/16 , H02H9/045 , H02H9/041 , Y02D30/70 , H04W88/08
摘要： Methods of powering a radio that is mounted on a tower of a cellular base station are provided in which a direct current (“DC”) power signal is provided to the radio over a power cable and a voltage level of the output of the power supply is adjusted so as to provide a substantially constant voltage at a first end of the power cable that is remote from the power supply. Related cellular base stations and programmable power supplies are also provided.
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公开(公告)号：US11774470B2
公开(公告)日：2023-10-03
申请号：US17420881
申请日：2019-08-30
发明人： Feng Zhang , Maonan Yao
CPC分类号： G01R19/2513 , G01R27/16
摘要： Provided are a load detection system and a load detection method thereof. The load detection system includes an adjustable power supply (110) and a detection module (12). The adjustable power supply (110) and a to-be-detected load 120 together form a set load detection circuit (11), and the adjustable power supply (110) is configured to output a changing power supply signal to the to-be-detected load (120) through the set load detection circuit (11). The detection module (12) is configured to detect at least two changing electrical parameters in the set load detection circuit (11), acquire an equivalent resistance value of the to-be-detected load (120) according to the at least two changing electrical parameters, and detect whether the to-be-detected load (120) includes a charging device according to a non-linear change curve or a linear change curve formed by the equivalent resistance value and the power supply signal.
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公开(公告)号：US20230288463A1
公开(公告)日：2023-09-14
申请号：US18020345
申请日：2021-08-10
发明人： Satoshi NAKAGAWA
IPC分类号： G01R27/16
CPC分类号： G01R27/16
摘要： An object is to provide a sensor system comprising a sensor operating on a self-sustaining power source.
A sensor system comprising a plurality of sensors installed at different positions, each of the sensors including a first conductive part and a second conductive part, a medium, and a functional part, the first conductive part and the functional part being connected to each other, the second conductive part and the functional part being connected to each other, at least a part of the first conductive part and the second conductive part being in contact with the medium, the first conductive part and the second conductive part being not in contact with each other, and the sensor system being configured to detect that an internal impedance of one sensor and an internal impedance of another sensor satisfy a predetermined condition.-
公开(公告)号：US11726508B2
公开(公告)日：2023-08-15
申请号：US17504966
申请日：2021-10-19
CPC分类号： G05F1/46 , G01R19/2513 , G01R27/16 , H02H9/045 , H04W4/80 , H02H9/041 , H04W88/08 , Y02D30/70
摘要： Methods of powering a radio that is mounted on a tower of a cellular base station are provided in which a direct current (“DC”) power signal is provided to the radio over a power cable and a voltage level of the output of the power supply is adjusted so as to provide a substantially constant voltage at a first end of the power cable that is remote from the power supply. Related cellular base stations and programmable power supplies are also provided.
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公开(公告)号：US20230213563A1
公开(公告)日：2023-07-06
申请号：US18057452
申请日：2022-11-21
发明人： Ron K. Wages , Larry J. Morrow
IPC分类号： G01R27/16
CPC分类号： G01R27/16
摘要： Systems, apparatuses, methods, and computer program products are disclosed for power theft detection. An example method includes receiving, by a control system, telemetry data from a transformer adjacent to a customer premise and a meter at the customer premise and storing, by the control system, the telemetry data in a memory. The example method further includes calculating, by the control system and using the telemetry data, a change in impedance in an electric line segment between the transformer and the meter, and determining, by the control system, whether the change in the impedance in the electric line segment is anomalous. Corresponding apparatuses and computer program products are also disclosed.
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