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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:US10171102B1
公开(公告)日:2019-01-01
申请号:US15865742
申请日:2018-01-09
Applicant: Analog Devices Global Unlimited Company
Inventor: Hajime Shibata , Yunzhi Dong , Zhao Li , Trevor Clifford Caldwell , Wenhua William Yang
Abstract: A linear continuous-time (CT) delaying summation block is one of the key building blocks for CT multi-stage analog-to-digital converters (ADCs) such as CT pipeline ADCs and CT multi-stage delta-sigma (MASH) ADCs. The CT summation block is typically used on a stage of a CT multi-stage ADC to subtract a digital-to-analog converter (DAC) output signal from an analog input signal of the stage. Rather than using a current-mode summation, the CT delaying summation block can be implemented with voltage-mode summation.
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公开(公告)号:US20180358248A1
公开(公告)日:2018-12-13
申请号:US16005499
申请日:2018-06-11
Applicant: Analog Devices Global Unlimited Company
Inventor: Edward John Coyne
CPC classification number: H01L21/67248 , G01K3/005 , G01K3/04 , G01K7/01 , G01K13/00
Abstract: A temperature shock monitor includes a solvent material and a diffusion material. An energy barrier between the solvent material and the diffusion material is selected to be lower than is would conventionally be used in semiconductor devices such that the diffusion material diffuses into the solvent material when exposed to a temperature above a designated temperature threshold. At a later time, electrical parameters of the temperature shock monitor that change based on the amount of diffusion of the diffusion material into the solvent material allows one to determine whether the temperature shock monitor was exposed to a temperature above the temperature threshold.
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公开(公告)号:US12080460B2
公开(公告)日:2024-09-03
申请号:US17890163
申请日:2022-08-17
Applicant: Analog Devices Global Unlimited Company
Inventor: Paul Lambkin , Patrick J. Murphy , Bernard Patrick Stenson , Laurence B. O'Sullivan , Stephen O'Brien , Shane Geary , Baoxing Chen , Sombel Diaham
CPC classification number: H01F19/08 , H01F2019/085 , H01G2/00 , H04B1/04 , H04B1/16
Abstract: A micro-isolator is described. The micro-isolator may include a first isolator element, a second isolator element, and a first dielectric material separating the first isolator element from the second isolator element. A second dielectric material may completely or partly encapsulate the second isolator element, or may be present at outer corners of the second isolator element. The second dielectric material may have a larger bandgap than the first dielectric material, and its configuration may reduce electrostatic charge injection into the first dielectric material. The micro-isolator may be formed using microfabrication techniques.
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公开(公告)号:US11193803B2
公开(公告)日:2021-12-07
申请号:US16262579
申请日:2019-01-30
Applicant: Analog Devices Global Unlimited Company
Inventor: Claire Croke , Aine McCarthy , Adrian Sherry , Giovanni C. Dotta , Dan O'Donovan , Sean Wilson , Mary McCarthy , Colin G. Lyden , Fiona Mary Treacy , Michael Byrne
Abstract: Various examples are directed to systems and methods for managing a sensor. A measurement system may receive, from a host device, a first register map describing a first configuration of a measurement system. The first configuration may be associated with a first sensor. The measurement system may compare the first register map to an error rule set indicating inconsistent register map arrangements. After comparing the first register map to the error rule set, the measurement system may configure a switch matrix of the measurement system to sample the first sensor according to the first configuration of the measurement system. The measurement system may receive a plurality of samples from a first sensor and generate first digital measurement data based at least in part on the plurality of samples.
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公开(公告)号:US20210194497A1
公开(公告)日:2021-06-24
申请号:US16074356
申请日:2017-02-01
Applicant: Analog Devices Global Unlimited Company
Inventor: David LAMB , Mayur ANVEKAR , Robert ADAMS
Abstract: A variable output data rate converter circuit preferably meets performance requirements while keeping the circuit complexity low. In some embodiments, the converter circuit may include an oversampling sigma delta modulator circuit to quantize an analog input signal at an oversampled rate, and output an sigma delta modulated signal, a transposed polynomial decimator circuit to decimate the sigma delta modulated signal, and output a first decimated signal, and an integer decimator circuit to decimate the first decimated signal by an integer factor and output a second decimated signal having a desired output data rate. The transposed polynomial decimator circuit has a transposed polynomial filter circuit and a digital phase locked loop circuit, which tracks a ratio between a sampling rate of the first decimated signal and the oversampled rate, and outputs an intersample position parameter to the transposed polynomial filter circuit.
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公开(公告)号:US10955493B2
公开(公告)日:2021-03-23
申请号:US16294192
申请日:2019-03-06
Applicant: Analog Devices Global Unlimited Company
Inventor: Yogesh Jayaraman Sharma , Jochen Schmitt , Paul R. Blanchard
Abstract: A calibration apparatus for calibrating a magnetic sensor configured to generate an output signal indicative of magnetic field strength when a bias signal is applied to it is disclosed. The apparatus includes a test magnetic field generator (MFG) to generate magnetic fields of known magnitude, and further includes a processor to control the MFG to generate a known magnetic field, control the sensor to generate a test output signal when the MFG generates the known magnetic field and a known bias signal is applied to the sensor, and determine how to change the bias signal based on a deviation of the measured test output signal from an expected output signal. Using a test MFG that produces known magnetic fields when known bias signals are applied to sensors allows evaluating and compensating for changes in sensitivity of the sensors by accordingly changing bias signals applied to the sensors.
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公开(公告)号:US20210065955A1
公开(公告)日:2021-03-04
申请号:US16553954
申请日:2019-08-28
Applicant: Analog Devices Global Unlimited Company
Inventor: Paul Lambkin , Patrick J. Murphy , Bernard Patrick Stenson , Laurence B. O'Sullivan , Stephen O'Brien , Shane Geary , Baoxing Chen , Sombel Diaham
IPC: H01F19/08
Abstract: A micro-isolator is described. The micro-isolator may include a first isolator element, a second isolator element, and a first dielectric material separating the first isolator element from the second isolator element. A second dielectric material may completely or partly encapsulate the second isolator element, or may be present at outer corners of the second isolator element. The second dielectric material may have a larger bandgap than the first dielectric material, and its configuration may reduce electrostatic charge injection into the first dielectric material. The micro-isolator may be formed using microfabrication techniques.
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公开(公告)号:US10855073B2
公开(公告)日:2020-12-01
申请号:US16035538
申请日:2018-07-13
Applicant: Analog Devices Global Unlimited Company
Inventor: Padraig Fitzgerald , Eric James Carty
Abstract: A method of and apparatus for protecting a MEMS switch is provided. The method and apparatus improve the integrity of MEMS switches by reducing their vulnerability to current flow through them during switching of the MEMS switch between on and off or vice versa. The protection circuit provides for a parallel path, known as a shunt, around the MEMS component. However, components within the shunt circuit can themselves be removed from the shunt when they are not required. This improves the electrical performance of the shunt when the switch is supposed to be in an off state.
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公开(公告)号:US10852799B2
公开(公告)日:2020-12-01
申请号:US16020812
申请日:2018-06-27
Applicant: Analog Devices Global Unlimited Company
Inventor: Stuart Patterson , Martin Kessler , Prashant Tripathi
IPC: G06F1/26 , G06F13/362 , G06F13/40
Abstract: Disclosed herein are systems and techniques for adaptive use of multiple power supplies in a communication system. For example, in some embodiments, a slave device may include: an upstream transceiver to couple to an upstream link of a bus of a communication system; and circuitry to couple to the upstream link of the bus and to a local power supply, wherein the circuitry is to switch from providing the local power supply to power the slave device to providing bus power supplied by the upstream link of the bus to power the slave device.
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