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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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公开(公告)号：US09151818B2
公开(公告)日：2015-10-06
申请号：US13672236
申请日：2012-11-08
Applicant: Analog Devices Global
Inventor： Seyed Amir Ali Danesh , Jonathan Ephraim David Hurwitz
CPC classification number: G01R35/04 , G01R15/04 , G01R19/0084 , G01R19/02 , G01R21/133 , G01R21/14
Abstract: A voltage measurement apparatus is provided that includes: a potential attenuator configured to be electrically connected between first and second conductors, which are electrically coupled to a source, wherein the potential attenuator includes a first impedance and a reference impedance arrangement in series with each other, wherein the reference impedance arrangement has an electrical characteristic that can be changed in a known fashion; and further including a processing arrangement configured to acquire at least one signal from the reference impedance arrangement, the at least one signal reflecting change of the electrical characteristic in the known fashion; and to determine a voltage between the first and second conductors in dependence on the fashion in which the electrical characteristic is changed being known and the at least one signal.
Abstract translation: 提供一种电压测量装置，其包括：电位衰减器，被配置为电连接在第一和第二导体之间，所述第一和第二导体电耦合到源极，其中所述电位衰减器包括彼此串联的第一阻抗和参考阻抗布置， 其中所述参考阻抗布置具有可以以已知方式改变的电特性; 并且还包括配置成从所述参考阻抗布置获取至少一个信号的处理装置，所述至少一个信号以已知方式反映电特性的变化; 并且根据已知电特性改变的方式和至少一个信号来确定第一和第二导体之间的电压。
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公开(公告)号：US20190293689A1
公开(公告)日：2019-09-26
申请号：US16003701
申请日：2018-06-08
Applicant: Analog Devices Global Unlimited Company
Inventor： Boris Lerner , Yogesh Jayaraman Sharma , Sefa Demirtas , Jochen Schmitt , Paul Blanchard , Arthur J. Kalb , Harvey Weinberg , Jonathan Ephraim David Hurwitz
Abstract: Embodiments of the present disclosure provide mechanisms for measuring currents flowing in one or more conductor wires. The mechanisms are based on using magnetic sensor pairs arranged within a housing with an opening for the wires, where each magnetic sensor pair can generate a pair of signals indicative of magnetic fields in two different directions. The outputs of the sensor pairs can be used to derive a measure of current(s) flowing through the one or more wires. The use of magnetic sensor pairs that can measure magnetic field in two different directions may enable simultaneous current measurement in multiple wires placed within the opening, improve accuracy of current measurements while relaxing requirements for precise control of the placement of the wire(s), reduce the impact of stray magnetic interference, and enable both AC and DC measurements.
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Patent Agency Ranking
公开(公告)号：US10416195B2
公开(公告)日：2019-09-17
申请号：US15179249
申请日：2016-06-10
Applicant: Analog Devices Global
Inventor： Jonathan Ephraim David Hurwitz , David S. Yaney , Petre Minciunescu , David P. Smith
Abstract: The present disclosure provides an improved Rogowski-type current sensor. In order to allow the sensing coil and the compensation wire to overlap, the sensor is produced using two boards. The current sensing coil is provided on one board, and the compensation wire is provided on another board. The coil and the wire are arranged such that they at least partially overlap, and ideally the compensation wire is formed entirely within the area defined by the coil, albeit in a different plane. This arrangement makes the current sensor far better at rejecting interference than prior art PCB arrangements. In addition, the coil may be formed on a two-sided board. The board has upper radial elements formed on an upper surface, and lower radial elements formed on lower surface. The radial elements are connected using vias formed in the board. The upper radial elements are arranged in a first plane, and the lower radial elements are formed in a second parallel plane. The upper radial elements are arranged so that they are aligned with the lower radial elements, such that a pair of radial elements form a radial plane that is perpendicular to the board surface. This symmetry ensures excellent sensitivity to currents in a conductor.
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公开(公告)号：US20180252748A1
公开(公告)日：2018-09-06
申请号：US15910805
申请日：2018-03-02
Applicant: Analog Devices Global
IPC: G01R15/14 , G01R35/04 , G01R21/133 , G01R11/25 , G01R15/04 , G01R19/00 , G01R27/02 , G01R23/02 , G01R21/14 , G01R1/20 , G01R19/02 , G01R21/00 , G01R27/16 , G01R27/26 , G01R27/28
CPC classification number: G01R15/146 , G01R1/203 , G01R11/24 , G01R11/25 , G01R15/04 , G01R15/14 , G01R19/0084 , G01R19/0092 , G01R19/02 , G01R21/00 , G01R21/133 , G01R21/14 , G01R22/066 , G01R22/068 , G01R23/02 , G01R27/02 , G01R27/14 , 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.
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公开(公告)号：US09939464B2
公开(公告)日：2018-04-10
申请号：US15099308
申请日：2016-04-14
Applicant: Analog Devices Global
IPC: G01R27/08 , G01R19/00 , G01R15/14 , G01R1/20 , G01R11/25 , G01R15/04 , G01R21/14 , G01R27/02 , G01R35/04 , G01R23/02 , G01R21/00 , G01R19/02 , G01R27/16 , G01R27/26 , G01R27/28
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.
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19.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：US20160341769A1
公开(公告)日：2016-11-24
申请号：US15229815
申请日：2016-08-05
Applicant: Analog..Devices..Global
Inventor： Seyed Amir Ali Danesh , Jonathan Ephraim David Hurwitz
IPC: G01R19/00
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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