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公开(公告)号：US20180040941A1
公开(公告)日：2018-02-08
申请号：US15226438
申请日：2016-08-02
Applicant: Analog Devices Global
Inventor： Check F. Lee , Bernard P. Stenson , Baoxing Chen
CPC classification number: H01Q1/243 , H01L2224/73265 , H01Q1/38 , H01Q1/48 , H01Q9/065 , H01Q13/02 , H01Q13/06 , H01Q15/14 , H01Q19/30 , H04B5/005
Abstract: Radio frequency (RF) isolators are described, coupling circuit domains operating at different voltages. The RF isolator may include a transmitter which emits a directional signal toward a receiver. Layers of materials having different dielectric constants may be arranged to confine the emission along a path to the receiver. The emitter may be an antenna having an aperture facing the receiver.
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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：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：US10672968B2
公开(公告)日：2020-06-02
申请号：US14805135
申请日：2015-07-21
Applicant: Analog Devices Global
Inventor： Patrick M. McGuinness , Helen Berney , Jane Cornett , William Alan Lane , Baoxing Chen
Abstract: An embodiment of a thermoelectric device may include a plurality of thermoelectric cells disposed between first and second planes. Each of the thermoelectric cells may include a thermoelectric element formed from a thermoelectric material of a single semiconductor type, the thermoelectric element including a first end, a second end, and a portion extending from the first end to the second end, the portion extending from the first end to the second end including at least two surfaces that face each other; and at least one conductive element electrically connected to and extending away from the second end of the thermoelectric element toward the first end of the thermoelectric element of another thermoelectric cell. Each thermoelectric cell also may further include an insulating element disposed between the at least two surfaces of the thermoelectric element and between portions of the at least one conductive element.
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Patent Agency Ranking
公开(公告)号：US20200083874A1
公开(公告)日：2020-03-12
申请号：US16125620
申请日：2018-09-07
Applicant: Analog Devices Global Unlimited Company
Inventor： Yue Zhuo , Wenhui Qin , Yingjie Guo , Shaoyu Ma , Tianting Zhao , Baoxing Chen
Abstract: Power isolators with multiple selectable feedback modes are described. The power isolators may transfer a power signal from a primary side to a second side. A feedback signal may be provided from the secondary side to the primary side to control generation of the power signal on the primary side. In this manner, the power signal provided to the secondary side may be maintained within desired levels. The feedback signal may be generated by feedback circuitry configurable to operate in different modes, such that the feedback signal may be of differing types depending on which feedback mode is implemented.
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公开(公告)号：US20200076512A1
公开(公告)日：2020-03-05
申请号：US16287796
申请日：2019-02-27
Applicant: Analog Devices Global Unlimited Company
Inventor： Laurence B. O'Sullivan , Shane Geary , Baoxing Chen , Bernard Patrick Stenson , Paul Lambkin , Patrick M. McGuinness , Stephen O'Brien , Patrick J. Murphy
Abstract: Isolators having a back-to-back configuration for providing electrical isolation between two circuits are described, in which multiple isolators formed on a single, monolithic substrate are connected in series to achieve a higher amount of electrical isolation for a single substrate than for isolators formed on separate substrates connected in series. Discrete dielectric regions positioned between isolator components forming an isolator provide electrical isolation between the isolator components as well as between the isolators formed on the substrate. The back-to-back isolator may provide one or more communication channels for transfer of information and/or power between different circuits.
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公开(公告)号：US20180205319A1
公开(公告)日：2018-07-19
申请号：US15406014
申请日：2017-01-13
Applicant: Analog Devices Global
Inventor： Yue Zhuo , Baoxing Chen , Xin Yang , Tianting Zhao
IPC: H02M3/335
Abstract: Isolated DC-DC converters are described. A DC-DC converter is a device which converts a direct current (DC) signal from one voltage to another. An isolated DC-DC converter performs the conversion across an electrical isolation barrier separating two voltage domains. The signal converted from one voltage to another, and transferred from one voltage domain to another, may be a power signal. Described are isolated DC-DC converters which transfer a power signal from one voltage domain to another via an isolator, and a power feedback signal back across the isolator. The isolator is a transformer in some situations.
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公开(公告)号：US20180175735A1
公开(公告)日：2018-06-21
申请号：US15383480
申请日：2016-12-19
Applicant: Analog Devices Global
Inventor： Tianting Zhao , Baoxing Chen , Yue Zhuo
CPC classification number: H02M3/33507 , H02M1/44 , H02M3/3376 , H02M2001/123
Abstract: Isolated DC-DC converters and methods for operating the same are described herein. DC-DC converters include a driver that drives a primary winding of a transformer to transmit power to a secondary winding of the transformer across an isolation barrier. In some embodiments, a pair of symmetrical serial capacitors are provided between the driver and the primary winding of a resonant DC-DC converter with an on-chip transformer to slow down variations of a common mode voltage on the primary winding during operation. This in turn can suppress radiation emissions related to time variation rates of the common mode voltage and, and can also improve electromagnetic interference (EMI) performance of the DC-DC converter.
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公开(公告)号：US09660848B2
公开(公告)日：2017-05-23
申请号：US14486937
申请日：2014-09-15
Applicant: Analog Devices Global
Inventor： Ruida Yun , Yuanjie Sun , Baoxing Chen
CPC classification number: H04L27/04 , H03B5/1215 , H03B5/1228 , H03C1/60 , H04L25/0286
Abstract: An oscillator for a signal isolator system includes a capacitor and an inductor connected in parallel, two pairs of cross-coupled switches and a control switch. The capacitor, the inductor and the cross-coupled switches form an oscillator. The control switch controls operation of the oscillator between an ON state and an OFF state in response to a data signal to be communicated across an isolation barrier. The inductor may be formed from a winding of an isolation transformer, which reduces component count as compared to a system that provides a separate inductor. Other embodiments may include a current-supplying kickstart circuit and a shorting transistor that can speed transition between the ON and OFF states.
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