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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：US09941812B2
公开(公告)日：2018-04-10
申请号：US14912514
申请日：2014-08-22
Applicant: Analog Devices Global
IPC: H02M7/217
CPC classification number: H02M7/217
Abstract: A power conversion apparatus can receive an alternating current (AC) signal at an input and provide in dependence thereon a low voltage direct current (DC) signal from an output stage. The apparatus comprises a main path comprising a capacitor in series with the input. The apparatus comprises a first path to carry current carried by the main path in at least one of a positive going part and a negative going part of the AC signal and a second path to carry current carried by the main path in a positive going part and a negative going part of the AC signal. The apparatus further comprises switches operative to determine when one of the first and second paths carries current. The output stage receives current flowing in the first path and at least one of the switches operates based on a control signal derived from the DC signal.
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公开(公告)号：US09933463B2
公开(公告)日：2018-04-03
申请号：US15229815
申请日：2016-08-05
Applicant: Analog Devices Global
Inventor： Seyed Amir Ali Danesh , Jonathan Ephraim David Hurwitz
IPC: H02H3/00 , G01R19/00 , G01R23/02 , G01R31/02 , H02H3/32 , G01R19/25 , H02H1/00 , G01R35/00 , G01R21/06
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.
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公开(公告)号：US09638724B2
公开(公告)日：2017-05-02
申请号：US14290820
申请日：2014-05-29
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：US20190081601A1
公开(公告)日：2019-03-14
申请号：US16015657
申请日：2018-06-22
Applicant: Analog Devices Global Unlimited Company
Abstract: Differential sampling circuits may be adversely affected by changes in common mode voltage. Changes in the common mode voltage may alter the on resistance of transistor switches which it turn may mean that small signal changes are not correctly observed against a bigger common mode signal. The present disclosure relates to a way of improving the ability to resolve small differential signal changes by varying the supply or drive voltage to a component to compensate for common mode voltage changes.
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Patent Agency Ranking
公开(公告)号：US20190064307A1
公开(公告)日：2019-02-28
申请号：US15691438
申请日：2017-08-30
Applicant: Analog Devices Global Unlimited Company
Inventor： Seyed Amir Ali Danesh , John Stuart
Abstract: The present disclosure relates to generating a measurement sensor profiling summary in relation to a measurement sensor of an electrical measurement system, the measurement sensor being suitable for measuring an electrical property. The profiling summary is generated by obtaining a plurality of profiling results each comprising an estimate of a transfer function of a measurement sensor of the electrical measurement system and a corresponding certainty value indicative of the accuracy of the estimate of the transfer function, wherein the plurality of profiling results are based on estimates of the transfer function of the measurement sensor and corresponding certainty values that were determined by a monitor module of the electrical measurement system during a profiling period of time; and generating a profiling summary based on at least one of the plurality of profiling results.
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公开(公告)号：US20190064306A1
公开(公告)日：2019-02-28
申请号：US15691414
申请日：2017-08-30
Applicant: Analog Devices Global Unlimited Company
Inventor： Seyed Amir Ali Danesh , John Stuart
IPC: G01R35/00 , G01R21/133
Abstract: The present disclosure relates to the control of an operation of a monitor module of an electrical measurement system, where the monitor module has a plurality of operating states, including a) monitor at least a first measurement sensor of the utility meter to determine a first monitor result comprising an estimate of a transfer function of the first measurement sensor and a corresponding certainty value indicative of the accuracy of the estimate of the transfer function of the first measurement sensor, wherein the first measurement sensor is for measuring a first electrical property, and b) do not monitor any measurement sensor of the electrical measurement system.
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公开(公告)号：US10132846B2
公开(公告)日：2018-11-20
申请号：US15182094
申请日：2016-06-14
Applicant: Analog Devices Global
Inventor： Jonathan Ephraim David Hurwitz , Seyed Amir Ali Danesh , William Michael James Holland , Shaoli Ye
Abstract: Current transducers are widely used in current measuring systems. They provide good isolation between the supply voltage and the measurement equipment. However they can introduce small phase errors which can become significant sources of error if the current to a load is out of phase with the supply voltage for the load. This disclosure discusses a robust measurement apparatus and method that can be used in situ to monitor for and correct phase errors.
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公开(公告)号：US20180252750A1
公开(公告)日：2018-09-06
申请号：US15910896
申请日：2018-03-02
Applicant: Analog Devices Global
Inventor： Seyed Amir Ali Danesh , Jonathan Ephraim David Hurwitz
IPC: G01R19/00 , H02H3/32 , H02H3/00 , H02H1/00 , G01R31/02 , G01R19/25 , G01R23/02 , G01R21/06 , G01R19/165 , G01R35/00
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.
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公开(公告)号：US20160197563A1
公开(公告)日：2016-07-07
申请号：US14912514
申请日：2014-08-22
Applicant: ANALOG DEVICES GLOBAL
IPC: H02M7/217
CPC classification number: H02M7/217
Abstract: The present invention relates to power conversion apparatus (40) configured to receive a high voltage alternating current (AC) signal at an input (42, 44) and to provide in dependence thereon a low voltage direct current (DC) signal from an output stage (58, 60). The power conversion apparatus (40) comprises a main path comprising a high voltage capacitor (46) in series with the input. The power conversion apparatus (40) also comprises a first path operative to carry current carried by the main path in at least one of a positive going part and a negative going part of the high voltage alternating current signal and a second path operative to carry current carried by the main path in a positive going part and a negative going part of the high voltage alternating current signal. The power conversion apparatus further comprises first and second switches (52, 54) which are operative to determine when a respective one of the first and second paths carries current. In the power conversion apparatus, the output stage (58, 60) receives current flowing in the first path and at least one of the first and second switches (52, 54) is operable in dependence on a control signal derived from the low voltage direct current signal.
Abstract translation: 本发明涉及一种被配置为在输入端（42,44）处接收高压交流（AC）信号并根据其提供来自输出级的低电压直流（DC）信号的功率转换装置（40） （58,60）。 电力转换装置（40）包括与输入串联的高压电容器（46）的主路径。 功率转换装置（40）还包括第一路径，其操作以在高压交流信号的正向部分和负向部分中的至少一个中承载由主路径承载的电流，以及第二路径，其操作以承载电流 主路径承载在高压交流信号的正向部分和负向部分。 电力转换装置还包括第一和第二开关（52,54），其可操作以确定第一和第二路径中的相应一个何时承载电流。 在功率转换装置中，输出级（58,60）接收在第一路径中流动的电流，并且第一和第二开关（52,54）中的至少一个可根据从低电压直接导出的控制信号 电流信号。
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