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.

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.

公开(公告)号：US20240089153A1

公开(公告)日：2024-03-14

申请号：US18513003

申请日：2023-11-17

Applicant: Analog Devices, Inc.

Inventor： Jason J. Ziomek ,  Eric C. Gaalaas

IPC: H04L25/02 ,  G06F1/26 ,  G06F1/3203

CPC classification number: H04L25/0266 ,  G06F1/266 ,  G06F1/3203 ,  G06F2213/0042

Abstract: Digital isolators operable in multiple power modes are described. The digital isolators include a low power mode, in which some circuitry of the isolator operates in a lower power state than in other mode(s) of operation or may be deactivated, and in which data communication across the isolator is not permitted. The isolator may wake from the low power mode in response to a detected event or may periodically wake. Circuitry on one side of the isolator may dictate when and how the isolator wakes from a lower power mode.

公开(公告)号：US11637724B2

公开(公告)日：2023-04-25

申请号：US17334445

申请日：2021-05-28

Applicant: Analog Devices, Inc.

Inventor： Eric C. Gaalaas ,  Dongwan Ha ,  Jason J. Ziomek ,  Bikiran Goswami ,  Brian Jadus

IPC: H04L25/02 ,  H02M3/335

Abstract: Methods and apparatus are disclosed for communicating multiple logic states across a digital isolator. The digital isolator is a universal serial bus (USB) isolator in some embodiments. The digital isolator includes one or more single-bit data channels. Three or more logic states of information are transmitted across the single-bit data channel(s). The logic states are distinguished by a pulse sequence, and in particular a number of edges of the pulse sequence and a final value or final edge of the pulse sequence.

公开(公告)号：US20220294672A1

公开(公告)日：2022-09-15

申请号：US17334445

申请日：2021-05-28

Applicant: Analog Devices, Inc.

Inventor： Eric C. Gaalaas ,  Dongwan Ha ,  Jason J. Ziomek ,  Bikiran Goswami ,  Brian Jadus

IPC: H04L25/02

Abstract: Methods and apparatus are disclosed for communicating multiple logic states across a digital isolator. The digital isolator is a universal serial bus (USB) isolator in some embodiments. The digital isolator includes one or more single-bit data channels. Three or more logic states of information are transmitted across the single-bit data channel(s). The logic states are distinguished by a pulse sequence, and in particular a number of edges of the pulse sequence and a final value or final edge of the pulse sequence.

公开(公告)号：US10536309B2

公开(公告)日：2020-01-14

申请号：US14883342

申请日：2015-10-14

Applicant: Analog Devices, Inc.

Inventor： Ruida Yun ,  Eric C. Gaalaas ,  Baoxing Chen

IPC: H04L27/06 ,  H03K5/24 ,  H03K3/023

Abstract: A receiver system for an on-off key (“OOK”) isolator system may include a pair of receivers. A first receiver may generate a first current signal representing a received OOK signal, and a second receiver may generate a second current signal from a common mode representation of the received OOK signal. The receiver system may include circuitry to compare the first and second current signals and generate an output signal therefrom.

公开(公告)号：US10270630B2

公开(公告)日：2019-04-23

申请号：US14486951

申请日：2014-09-15

Applicant: Analog Devices, Inc.

Inventor： Ruida Yun ,  Eric C. Gaalaas ,  Baoxing Chen

IPC: H03K5/24 ,  H04L25/08 ,  H04L27/06

Abstract: A receiver system for an on-off key (“OOK”) isolator system may include a receiver that generates an intermediate current signal based on an OOK input signal. The intermediate current may be provided at a first current level when the input signal has a first OOK state and a second current level when the input signal has a second OOK state. The system also may include an output driver to generate a voltage representation of the intermediate current signal. Performing signal processing in a current domain permits fast transitions between OOK states.

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.

公开(公告)号：US20160080183A1

公开(公告)日：2016-03-17

申请号：US14883342

申请日：2015-10-14

Applicant: Analog Devices, Inc.

Inventor： Ruida Yun ,  Eric C. Gaalaas ,  Baoxing Chen

IPC: H04L27/06

CPC classification number: H04L27/06 ,  H03K3/023 ,  H03K5/2481

Abstract: A receiver system for an on-off key (“OOK”) isolator system may include a pair of receivers. A first receiver may generate a first current signal representing a received OOK signal, and a second receiver may generate a second current signal from a common mode representation of the received OOK signal. The receiver system may include circuitry to compare the first and second current signals and generate an output signal therefrom.

Abstract translation: 用于开关键（“OOK”）隔离器系统的接收器系统可以包括一对接收器。 第一接收机可以产生表示所接收的OOK信号的第一电流信号，并且第二接收机可以从所接收的OOK信号的共模式表示产生第二电流信号。 接收机系统可以包括用于比较第一和第二电流信号并从其产生输出信号的电路。