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公开(公告)号：US10063199B2
公开(公告)日：2018-08-28
申请号：US15178217
申请日：2016-06-09
Applicant: Analog Devices Global
Inventor： Sean T. Morley
CPC classification number: H03F3/45273 , H03F1/3211 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/21 , H03F3/3016 , H03F3/45071 , H03F3/4508 , H03F3/45085 , H03F3/45174 , H03F3/45183 , H03F3/50 , H03F2200/165 , H03F2200/451 , H03F2200/456 , H03F2200/513 , H03F2200/69 , H03F2200/72 , H03F2200/75 , H03F2203/45112 , H03F2203/45646
Abstract: Provided herein are amplifiers, such as buffers, with increased headroom. An amplifier stage includes a follower transistor and current source configured to receive a power supply voltage comprising an alternating current component and a direct current component. The alternating current component of the power supply voltage has substantially the same frequency and magnitude as the input signal received by the follower transistor. In radio frequency (RF) and intermediate frequency (IF) buffer applications, for example, the increased headroom can allow for linear buffering of an input signals with increased amplitude so that the output power one decibel (OP1dB) compression point can be increased.
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公开(公告)号：US10056914B2
公开(公告)日：2018-08-21
申请号：US15282586
申请日：2016-09-30
Applicant: ANALOG DEVICES GLOBAL
Inventor： Zhao Li , Hajime Shibata , Trevor Clifford Caldwell , Richard E. Schreier , Victor Kozlov , David Nelson Alldred , Prawal Man Shrestha
CPC classification number: H03M1/1023 , H03M1/1004 , H03M1/1038 , H03M1/1085 , H03M1/361 , H03M3/378 , H03M3/384
Abstract: A flash analog-to-digital converter (ADC) includes comparators that convert an analog input signal to a digital output signal. Offsets of these comparators introduce noise and can hurt the performance of the ADC. Thus, these comparators are calibrated using calibration codes. Conventional calibration methods determine these calibration codes by removing the ADC from an input signal. Otherwise, it is difficult to distinguish the noise from the signal in the calibration measurement. In contrast, an embodiment can determine the calibration codes while the ADC converts the input signal to a digital signal. Such an embodiment can be achieved by a frequency-domain technique. In an embodiment employing a frequency-domain power meter, an input signal can be removed from the power measurement. This removal enables accurate measurement of in-band noise without having the measurement be corrupted by input signal power.
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公开(公告)号：US20180148318A1
公开(公告)日：2018-05-31
申请号：US15362296
申请日：2016-11-28
Applicant: Analog Devices Global
Inventor： Michael John Flynn , Paul Lambkin , Seamus Paul Whiston , Christina B. McLoughlin
Abstract: Suspended microelectromechanical systems (MEMS) devices including a stack of one or more materials over a cavity in a substrate are described. The suspended MEMS device may be formed by forming the stack, which may include one or more electrode layers and an active layer, over the substrate and removing part of the substrate underneath the stack to form the cavity. The resulting suspended MEMS device may include one or more channels that extend from a surface of the device to the cavity and the one or more channels have sidewalls with a spacer material. The cavity may have rounded corners and may extend beyond the one or more channels to form one or more undercut regions. The manner of fabrication may allow for forming the stack layers with a high degree of planarity.
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公开(公告)号：US20180130867A1
公开(公告)日：2018-05-10
申请号：US15347724
申请日：2016-11-09
Applicant: Analog Devices Global
Inventor： Paul Lambkin , Michal J. Osiak , Brian Anthony Moane , Stephen O'Brien , Laurence Brendan O'Sullivan , Patrick J. Murphy , Patrick M. McGuinness , Bernard P. Stenson
CPC classification number: H01L28/10 , H01F27/2804 , H01F27/2885 , H01F27/323 , H01F41/041 , H01F41/042 , H01F41/122 , H01F2019/085 , H01F2027/2809 , H01F2027/2819 , H01L23/5227
Abstract: A magnetic isolator is described. The magnetic isolator may comprise a top conductive coil, a bottom conductive coil, and a dielectric layer separating the top conductive coil from the bottom conductive coil. The top conductive coil may comprise an outermost portion having multiple segments. The segments may be configured to reduce the peak electric field in a region of the dielectric layer near the outer edge of the top conductive coil. The top conductive coil may comprise a first lateral segment, and a second lateral segment that is laterally offset with respect to the first lateral segment. The first lateral segment may be closer to the center of the top conductive coil than the second lateral segment, and may be closer to the bottom conductive coil than the second lateral segment. The magnetic isolator may be formed using microfabrication techniques.
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345.发明申请公开(公告)号：US20180128648A1
公开(公告)日：2018-05-10
申请号：US15682966
申请日：2017-08-22
Applicant: Analog Devices Global
Inventor： Jochen Schmitt
IPC: G01D5/165
Abstract: This disclosure describes, among other things, embodiments of devices, systems, and methods for using 3-dimensional (3D) magnetic sensors to detect the position of a magnetic target. By using 3D magnetic sensors, a two dimensional array of such magnetic sensors can be used to determine a 3D position of a magnetic target.
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Patent Agency Ranking
公开(公告)号：US09960785B1
公开(公告)日：2018-05-01
申请号：US15480905
申请日：2017-04-06
Applicant: Analog Devices Global
Inventor： Keith Anthony O'Donoghue
IPC: H03M3/00
Abstract: A latency associated with a receiver circuit, e.g., radio receiver circuit, can be reduced by applying digital data from an analog signal received by a receiver, e.g., a radio receiver, to an automatic gain control circuit without first using a decimation and digital filtering process, which can minimize or eliminate significant latency associated with the decimation and filtering process.
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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：US09939476B2
公开(公告)日：2018-04-10
申请号：US14866036
申请日：2015-09-25
Applicant: ANALOG DEVICES GLOBAL
Inventor： Christian Steffen Birk , John A. Cleary , David Sayago Montilla , Elizabeth A. Lillis , Padraig O'Connor , Eoin E. English , Patrick Pratt , Kathleen Embrechts , Wim Rens , Jan Crols
CPC classification number: G01R27/2605 , B81B2201/0235 , B81C99/003
Abstract: Embodiments of the present invention may provide a method of measuring an unknown capacitance of a device. The method may comprise the steps of driving a test signal to a circuit system that includes a current divider formed by the device with unknown capacitance and a reference capacitor; mirroring a current developed in the reference capacitor to a second circuit system that includes a measurement impedance; measuring a voltage within the second circuit system; and deriving a capacitance of the unknown capacitance based on the measured voltage with reference to a capacitance of the reference capacitor and the measurement impedance.
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公开(公告)号：US20180097522A1
公开(公告)日：2018-04-05
申请号：US15284190
申请日：2016-10-03
Applicant: Analog Devices Global
Inventor： Vamshi Krishna Chillara , Declan M. Dalton , Pablo Cruz Dato
CPC classification number: H03L7/093 , H03K3/80 , H03K4/90 , H03L7/0991 , H03L7/104 , H03L7/107 , H03L7/12 , H03L2207/06
Abstract: Aspects of this disclosure relate to reducing settling time of a sawtooth ramp signal in a phase-locked loop. Information from a loop filter of the phase-locked loop can be stored and used within the loop filter so as to improve the settling time of the sawtooth ramp signal. In certain embodiments, the settling time of a periodic sawtooth ramp signal can be reduced to less than one microsecond. An output frequency at the end of the sawtooth chirp can be brought back to an initial value without significantly modifying phase error in disclosed embodiments.
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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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