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公开(公告)号：USRE47097E1
公开(公告)日：2018-10-23
申请号：US14697528
申请日：2015-04-27
Applicant: ANALOG DEVICES, INC.
Inventor： Eric C. Gaalaas , Mark Stewart Cantrell
IPC: H03K19/003
Abstract: A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.
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公开(公告)号：USRE47098E1
公开(公告)日：2018-10-23
申请号：US14697532
申请日：2015-04-27
Applicant: Analog Devices, Inc.
Inventor： Eric C. Gaalaas , Mark Stewart Cantrell
IPC: H03K19/003
Abstract: A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.
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公开(公告)号：US12136513B2
公开(公告)日：2024-11-05
申请号：US17513850
申请日：2021-10-28
Applicant: Analog Devices, Inc.
Inventor： Mark Stewart Cantrell , Keith W. Bennett
Abstract: Aspects of the present disclosure provide miniaturized isolator modules capable of transferring power and/or data signals across an isolation barrier by way of a transformer while maintaining intrinsic safety (IS) compliance. For example, the isolator modules may provide power from a non-IS side to an IS side of the isolation barrier while protecting the IS side in the event of an overvoltage and/or overcurrent event on the non-IS side. In some aspects, an isolator module includes one or more silicon protection devices, which facilitate the miniaturization of the isolator module while maintaining protection against overvoltage and/or overcurrent events in accordance with IS standards. In some aspects, an isolator module includes a transformer adapted for IS compliance. For example, coils of the transformer may be disposed on opposing sides of an isolation barrier having a thickness of at least 200 microns. Some aspects provide silicon protection devices formed on a single semiconductor die for use with miniaturized isolator modules to provide overvoltage and/or overcurrent protection for IS compliance. Miniaturized isolator modules and protection devices described herein may be used either alone or in combination, in IS or non-IS environments.
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公开(公告)号：USRE47083E1
公开(公告)日：2018-10-09
申请号：US14697524
申请日：2015-04-27
Applicant: Analog Devices, Inc.
Inventor： Eric C. Gaalaas , Mark Stewart Cantrell
IPC: H03K19/003
Abstract: A USB-based isolator system conveys USB signals between a pair of galvanically isolated circuit systems and supports controlled enumeration by a downstream device on upstream USB signal lines. The isolator system provides a multi-mode voltage regulator to support multiple voltage supply configurations. The isolator system further provides control systems for each of the isolated circuit systems and provides robust control in a variety of start up conditions. Additionally, the isolator system includes refresh timers and watchdog mechanisms to support persistent operation but manage possible communication errors that can arise between the isolated circuit systems.
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