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1.发明申请公开(公告)号：US20200096545A1
公开(公告)日：2020-03-26
申请号：US16569361
申请日：2019-09-12
Applicant: Analog Devices Global Unlimited Company
Inventor： Long Wang , William Michael James Holland , Seyed Amir Ali Danesh
IPC: G01R19/25
Abstract: An apparatus is provided which substantially removes a perturbation signal from a pulse density modulated signal representing a combination of a signal to be measured and a perturbation applied to the signal to be measured. The removal of the perturbation is done by subtracting a correcting signal from the pulse density modulated signal. This approach introduces very little delay as it can be implemented by simple logic gates. It also provided enhanced immunity from the effects of bit errors.
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2.发明申请公开(公告)号：US20170363664A1
公开(公告)日：2017-12-21
申请号：US15185603
申请日：2016-06-17
Applicant: Analog Devices Global
Inventor： Jonathan Ephraim David Hurwitz , Seyed Amir Ali Danesh , William Michael James Holland , John Stuart
IPC: G01R19/25 , G01R35/00 , G01R21/133
Abstract: An apparatus is provided that can estimate a transfer function, for example of current measurement systems, voltage measurement systems and power measurement systems, and also provide an estimate of certainty about the transfer function. This enables customers to have confidence that they are not being overcharged for electricity.
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公开(公告)号：US11016126B2
公开(公告)日：2021-05-25
申请号：US15583257
申请日：2017-05-01
Applicant: Analog Devices Global Unlimited Company
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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4.发明授权公开(公告)号：US10459013B2
公开(公告)日：2019-10-29
申请号：US15185603
申请日：2016-06-17
Applicant: Analog Devices Global
Inventor： Jonathan Ephraim David Hurwitz , Seyed Amir Ali Danesh , William Michael James Holland , John Stuart
IPC: G01R19/25 , G01R21/133 , G01R35/00 , G01R27/28
Abstract: An apparatus is provided that can estimate a transfer function, for example of current measurement systems, voltage measurement systems and power measurement systems, and also provide an estimate of certainty about the transfer function. This enables customers to have confidence that they are not being overcharged for electricity.
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公开(公告)号：US20160154029A1
公开(公告)日：2016-06-02
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: G01R17/00
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.
Abstract translation: 本发明涉及电测量装置（10）。 电测量装置（10）包括被配置为相对于承载电信号的电路（12,14,16,18）设置的测量装置（20,24），测量装置（20,24）是 当这样布置以测量电信号时操作。 电测量装置（10）还包括信号源（22），其操作以将参考输入信号施加到测量装置（20,24），由此来自测量装置的输出信号包括对应于电信号的电输出信号，以及 与参考输入信号相对应的参考输出信号，参考输入信号具有在多个周期中重复的大致分段常数形式。 电测量装置（10）还包括可操作的处理装置（26）：确定至少一个累积表示，累积表示的确定包括对输出信号的多个接收部分求和，多个接收部分中的每一个对应于 参考输入信号的周期的至少一部分和相同部分; 并且确定以下至少一个：所述测量装置的传递函数; 测量装置的传递函数的变化; 和电信号，这取决于至少一个累积表示和参考输入信号。
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Patent Agency Ranking
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：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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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：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：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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