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公开(公告)号：US09411003B2
公开(公告)日：2016-08-09
申请号：US13684213
申请日：2012-11-22
Applicant: Analog Devices Global
Inventor： Seyed Amir Ali Danesh , Jonathan Ephraim David Hurwitz
CPC classification number: G01R19/00 , G01R19/16547 , G01R19/2506 , G01R21/06 , G01R23/02 , G01R31/025 , G01R35/005 , H02H1/0015 , H02H3/006 , H02H3/32
Abstract: The present invention relates to current measurement apparatus. The current measurement apparatus comprises first and second measurement devices with each of the first and second measurement devices being operative to measure current in a respective one of a live conductor and a neutral conductor substantially simultaneously. The current measurement apparatus is operative to make plural different determinations in dependence on the substantially simultaneous current measurements.
Abstract translation: 本发明涉及电流测量装置。 电流测量装置包括第一和第二测量装置，其中第一和第二测量装置中的每一个基本上同时测量活体导体和中性导体的相应一个中的电流。 电流测量装置可操作以根据基本上同时的电流测量值进行多个不同的确定。
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公开(公告)号：US20190383859A1
公开(公告)日：2019-12-19
申请号：US16007551
申请日：2018-06-13
Applicant: Analog Devices Global Unlimited Company
Inventor： Jonathan Ephraim David Hurwitz
Abstract: The response of a Rogowski coil based current measuring circuit is often proportional to frequency. To correct for this a low pass or integrating function is applied to the response to linearize it. The low pass filter is made from real resistors and capacitors, and tolerances in their values significantly affect the estimate of current. This disclosure relates to a way of addressing such problems. This allows consumers of electricity to have confidence in the accuracy of, for example, their electricity meter.
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公开(公告)号：US10381948B2
公开(公告)日：2019-08-13
申请号：US15923381
申请日：2018-03-16
Applicant: Analog Devices Global
Abstract: A power conversion apparatus or system can be configured to receive a high voltage alternating current (AC) signal at an input and to provide in dependence thereon a low voltage direct current (DC) signal from an output stage. The power conversion apparatus can include a main path comprising a high voltage capacitor in series with the input. In an example, the capacitor comprises a portion of an electric field energy harvesting system.
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公开(公告)号：US20190079117A1
公开(公告)日：2019-03-14
申请号：US15700867
申请日：2017-09-11
Applicant: Analog Devices Global Unlimited Company
Abstract: A measurement circuit is arranged to make several measurements, either at different times or in respect of different frequency components of currents measured by current sensors in respective phases of a multiphase supply system. The measurements are then used to correct for discrepancies in the transfer function of the sensors.
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公开(公告)号：US09823275B2
公开(公告)日：2017-11-21
申请号：US14895868
申请日：2014-05-30
Applicant: Analog Devices Global
Inventor： Seyed Amir Ali Danesh , William Michael James Holland , John Stuart , Jonathan Ephraim David Hurwitz
IPC: G01R27/08 , G01R19/00 , G01R17/00 , G01R17/02 , G01R15/14 , G01R27/14 , G01R19/25 , G01R1/20 , G01R19/165
CPC classification number: G01R17/00 , G01R1/203 , G01R15/144 , G01R15/146 , G01R17/02 , G01R19/0084 , G01R19/0092 , G01R19/16542 , G01R19/2513 , G01R27/08 , G01R27/14
Abstract: The present invention relates to electrical measurement apparatus (10). The electrical measurement apparatus (10) comprises a measurement arrangement (20,24) configured to be disposed in relation to an electrical circuit (12,14,16,18) which bears an electrical signal, the measurement arrangement (20,24) being operative when so disposed to measure the electrical signal. The electrical measurement apparatus (10) further comprises a signal source (22) operative to apply a reference input signal to the measurement arrangement (20,24) whereby an output signal from the measurement arrangement comprises an electrical output signal corresponding to the electrical signal and a reference output signal corresponding to the reference input signal, the reference input signal having a substantially piecewise constant form which is repeated over each of plural cycles. The electrical measurement apparatus (10) yet further comprises processing apparatus (26) which is operative: to determine at least one cumulative representation, determination of the cumulative representation comprising summing plural received sections of the output signal, each of the plural received sections corresponding to at least a part and to a same part of the cycle of the reference input signal; and to determine at least one of: a transfer function for the measurement arrangement; a change in a transfer function for the measurement arrangement; and the electrical signal, in dependence on the at least one cumulative representation and the reference input signal.
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Patent Agency Ranking
公开(公告)号：US20170299636A1
公开(公告)日：2017-10-19
申请号：US15583257
申请日：2017-05-01
Applicant: Analog Devices Global
CPC classification number: G01R19/0092 , G01R17/02 , G01R35/005
Abstract: Current measurement apparatus comprises a measurement arrangement and a signal source. The measurement arrangement is configured to measure a current signal drawn by a load. The signal source is operative to apply a reference input signal to the measurement arrangement whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal. The signal source comprises a current multiplier which defines first and second current paths and is configured such that: the first path carries a multiplier input current signal; the second path carries a multiplier output current signal which determines the reference input signal and which corresponds to the multiplier input current signal multiplied by a multiplier value determined by the current multiplier; and the multiplier input current signal and the multiplier output current signal are carried on their respective paths in a same direction relative to a power supply voltage. Power drawn through the second path as divided by the multiplier value is less than the power drawn through the first path.
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公开(公告)号：US09322850B2
公开(公告)日：2016-04-26
申请号：US14203502
申请日：2014-03-10
Applicant: Analog Devices Global
IPC: G01R27/08 , G01R19/00 , G01R15/04 , G01R27/02 , G01R35/04 , G01R21/133 , G01R21/14 , G01R27/26 , G01R27/28 , G01R27/16 , G01R19/02 , G01R1/20
CPC classification number: G01R15/146 , G01R1/203 , G01R11/25 , G01R15/04 , G01R15/14 , G01R19/0084 , G01R19/0092 , G01R19/02 , G01R21/00 , G01R21/133 , G01R21/14 , G01R23/02 , G01R27/02 , G01R27/16 , G01R27/26 , G01R27/28 , G01R35/04
Abstract: The present invention relates to current measurement apparatus 100. The current measurement apparatus 100 comprises a measurement arrangement 110, 114 which is configured to be disposed in relation to a load 108 which draws a current signal, the measurement arrangement being operative when so disposed to measure the load drawn current signal. The current measurement apparatus 100 also comprises a signal source 112 which is operative to apply a reference input signal to the measurement arrangement 110, 114 whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal. The current measurement apparatus 100 further comprises processing apparatus 116 which is operative to receive the output signal and to make a determination in dependence on the reference output signal and the load output signal, the determination being in respect of at least one of the load drawn current signal and electrical power consumed by the load.
Abstract translation: 电流测量装置100本发明涉及电流测量装置100.电流测量装置100包括测量装置110,114，该测量装置被配置为相对于牵引电流信号的负载108设置，该测量装置在这样设置时可操作以测量 负载拉电流信号。 电流测量装置100还包括信号源112，其可操作以将参考输入信号施加到测量装置110,114，由此来自测量装置的输出信号包括对应于负载牵引电流信号的负载输出信号和参考 输出信号对应于参考输入信号。 当前测量装置100还包括处理装置116，其可操作以接收输出信号并根据参考输出信号和负载输出信号作出确定，所述确定涉及至少一个负载牵引电流 负载消耗的信号和电力。
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公开(公告)号：US11121892B2
公开(公告)日：2021-09-14
申请号：US16612087
申请日：2018-05-11
Applicant: Analog Devices Global Unlimited Company
Inventor： Ryan Pinto , Jonathan Ephraim David Hurwitz , Lawrence Getzin
Abstract: Various examples are directed to isolated analog-to-digital converter (ADC) circuits comprising a first side that is separated from a second side by an isolator. A first ADC positioned on the first side may be configured to convert a first analog input signal to a first side multi-bit digital signal. A digital modulator on the first side may be configured to convert the first side multi-bit digital signal to a first single-bit stream. A first filter positioned on the second side may be configured to receive the first single-bit stream across the first isolator and to generate a first reconstructed multi-bit digital signal using the first single-bit stream.
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公开(公告)号：US20200344093A1
公开(公告)日：2020-10-29
申请号：US16612087
申请日：2018-05-11
Applicant: Analog Devices Global Unlimited Company
Inventor： Ryan Pinto , Jonathan Ephraim David Hurwitz , Lawrence Getzin
Abstract: Various examples are directed to isolated analog-to-digital converter (ADC) circuits comprising a first side that is separated from a second side by an isolator. A first ADC positioned on the first side may be configured to convert a first analog input signal to a first side multi-bit digital signal. A digital modulator on the first side may be configured to convert the first side multi-bit digital signal to a first single-bit stream. A first filter positioned on the second side may be configured to receive the first single-bit stream across the first isolator and to generate a first reconstructed multi-bit digital signal using the first single -bit stream.
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公开(公告)号：US10687005B2
公开(公告)日：2020-06-16
申请号：US16127553
申请日：2018-09-11
Applicant: Analog Devices Global Unlimited Company
IPC: H04N5/369 , H03M1/46 , H04N5/3745 , H04N5/378
Abstract: Embodiments of the present disclosure provide ADCs particularly suitable for PDAF image sensors, which ADCs may have an increased speed and/or reduced design complexity and power consumption compared to conventional implementations. An example ADC for a PDAF image sensor is configured to implement modified SAR techniques which reduce the number of bit trials required for conversion, and enable increased number of samples in a row-conversion time period of the image sensor. The ADC may implement the modified SAR techniques in combination with CMS in pixel readout signal chain, which may reduce noise without a proportionate increase in ADC sample rate.
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