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公开(公告)号：US10158334B2
公开(公告)日：2018-12-18
申请号：US15600542
申请日：2017-05-19
Applicant: Analog Devices Global
Inventor： Hanqing Wang , Gerard Mora-Puchalt
IPC: H03F3/00 , H03F1/02 , H03F1/32 , H03F1/56 , H03F3/393 , H03F3/42 , H03F3/45 , H03F1/14 , H03F3/387 , H03M3/00
Abstract: A capacitive gain amplifier circuit amplifies an input signal by a pair of differential amplifier circuits couples in series. The first differential amplifier circuit is reset during an autozero phase while disconnected from the second differential amplifier circuit, and the first and second differential amplifier circuits are connected together in series during a chop phase. A set of feedback capacitors is selectively switched in between respective outputs of the second differential amplifier circuit and respective inputs of the first differential amplifier circuit during the chop phase.
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公开(公告)号：US10158324B2
公开(公告)日：2018-12-18
申请号：US14807538
申请日：2015-07-23
Applicant: ANALOG DEVICES GLOBAL
Inventor： Gordon Cheung , John A. Hayden , Hans Brueggemann , Ahmed Ali Mohamed
Abstract: Switching interference is a primary artifact which affects the accuracy of arc detectors. To address switching interference, conventional arc detectors employ computationally intensive techniques which are often designed specifically for a target application. Thus, conventional arc detectors require a significant amount of hardware to accurately detect arc faults, which can increase costs of the power systems and prohibit wide deployment of arc detectors. With improved signal processing, a unique method for arc detection can accurately detect arc faults efficiently while tolerate switching interference from an inverter of the power system. Specifically, the method provides accurate but efficient arc detection by using a small Fast Fourier Transform with coherent sampling that is accomplished with a common clock generator in combination with signal conditioning. The overall system implementing the method is also programmable to suit a variety of target applications.
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公开(公告)号：US10157058B2
公开(公告)日：2018-12-18
申请号：US15273940
申请日：2016-09-23
Applicant: Analog Devices Global
Inventor： Shankar S. Malladi , Nagarjuna Gandrothu , Subbarao Chennu
Abstract: An adaptive self-configuring sensor node is disclosed herein. The node is associated with one or more sensor, and can include a microcontroller unit (MCU), sensors and a wired/wireless communication module (e.g., transceiver) to communicate the data collected by the sensors. Sensor node software running on the CPU can be adaptively reconfigured based on the sensors connected with the node, and using configuration data that is read from a non-volatile memory (NVM). The NVM can further store loadable sensor device specific data acquisition and processing (DAP) routines corresponding to one or more of the sensors, which can be executed to configure a sensor or cause collection or processing of sensor data.
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194.发明申请公开(公告)号：US20180358942A1
公开(公告)日：2018-12-13
申请号：US15616062
申请日：2017-06-07
Applicant: Analog Devices Global
Inventor： Jonathan Ephraim David Hurwitz
IPC: H03F3/45
Abstract: An amplifier circuit having improved common mode rejection is provided. This can be achieved by estimating the common mode value of an input signal and using this to adjust a target common mode voltage at the output of the amplifier. This can help avoid the differential gain becoming modified by the common mode voltage.
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公开(公告)号：US20180358166A1
公开(公告)日：2018-12-13
申请号：US16003621
申请日：2018-06-08
Applicant: Analog Devices Global Unlimited Company
Inventor： Jan Kubik , Bernard Patrick Stenson , Michael Morrissey
CPC classification number: H01F27/263 , H01F27/2804 , H01F2027/2809 , H01F2027/2819
Abstract: Techniques for fabricating low-loss magnetic vias within a magnetic core are provided. According to some embodiments, vias with small, well-defined sizes may be fabricated without reliance on precise alignment of layers. According to some embodiments, a magnetic core including a low-loss magnetic via can be wrapped around conductive coils of an inductor. The low-loss magnetic vias can improve performance of an inductive component by improving the quality factor relative to higher loss magnetic vias.
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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：US20180331712A1
公开(公告)日：2018-11-15
申请号：US15590903
申请日：2017-05-09
Applicant: Analog Devices Global
Inventor： Michael W. O'Brien , Michael F. Keaveney , Emil Ivanov Entchev , James Breslin
Abstract: Aspects of this disclosure relate to active antenna calibration. In some embodiments, a local oscillator signal can be injected into the receive path for misalignment measurement and calibration of the receive path, a transmit signal from a transmit path can be coupled to a receive path, and the transmit path can be calibrated relative to the receive path.
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公开(公告)号：US20180323750A1
公开(公告)日：2018-11-08
申请号：US15586922
申请日：2017-05-04
Applicant: Analog Devices Global
Inventor： Hanqing Wang , John Jude O'Donnell
IPC: H03F1/26 , H03G3/20 , H03F3/45 , G01N27/416
CPC classification number: H03F1/26 , G01N27/4163 , H03F3/45475 , H03F2200/555 , H03G3/20
Abstract: Techniques for improving noise performance while processing signals received from an electrochemical sensor are provided. In an example, an interface circuit can include a first amplifier configured to provide a voltage to a counter electrode of an electrochemical sensor, a second amplifier configured to receive sensor information from a working electrode of the electrochemical sensor and to provide concentration information using the sensor information. In certain examples, an input of the first amplifier can be directly coupled to an input of the second amplifier to attenuate noise, of either the first amplifier or the second amplifier, within the concentration information provided by the second amplifier.
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公开(公告)号：US20180321187A1
公开(公告)日：2018-11-08
申请号：US15586942
申请日：2017-05-04
Applicant: Analog Devices Global
Inventor： Shurong Gu , Hanqing Wang , GuangYang Qu , Dennis A. Dempsey
IPC: G01N27/416 , G01N27/48
CPC classification number: G01N27/4163 , G01N27/416
Abstract: Techniques for generating a diagnostic waveform for a sensor are provided. In an example, a control circuit for an electrochemical sensor can include power supply inputs configured to receive a supply voltage, a first signal generator configured to receive control information and to generate a first signal on a first output using the supply voltage and the control information, a second signal generator configured to receive the control information and to provide a second signal on a second output, using the supply voltage and the control information. An output voltage between the first output and the second output, in a diagnostic mode of operation of the control circuit, can include a periodic signal having a peak-to-peak voltage greater than the supply voltage.
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200.发明申请公开(公告)号：US20180314221A1
公开(公告)日：2018-11-01
申请号：US15958871
申请日：2018-04-20
Applicant: Analog Devices Global Unlimited Company
Inventor： Navdeep Singh Dhanjal , Shengbing Zhou
IPC: G05B19/045 , G06F1/32 , G06F12/0817 , H03K19/00
CPC classification number: G05B19/045 , G05B2219/23289 , G06F1/3296 , G06F12/0824 , H03K19/0002
Abstract: An apparatus comprises an integrated circuit (IC) including sequencer circuitry; and a memory integral to or operatively coupled to the integrated circuit, wherein at least a portion of the memory is organized as a plurality of hierarchical linked lists defining a finite state machine of a plurality of finite IC states; wherein the sequencer circuitry is configured to: receive one or more control words from the hierarchical linked lists associated with an IC state; advance the IC to the IC state according to the one or more control words; and perform one or more actions corresponding to the IC state.
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