公开(公告)号：US10205442B2

公开(公告)日：2019-02-12

申请号：US15230519

申请日：2016-08-08

Applicant: Analog Devices Global

Inventor： Michael Lynch ,  Brian Anthony Moane

IPC: H03K3/00 ,  H03K5/1252 ,  H03K17/56 ,  H04L25/02

Abstract: A transformer based digital isolator is provided that has improved immunity to common mode interference. The improved immunity is provided by placing the transformer in association with an H-bridge drive circuit, and taking additional effort to tailor the on state resistance of the transistors to control a common mode voltage at the transformer.

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

IPC: H01L49/02 ,  H01F27/28 ,  H01F41/04

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.

公开(公告)号：US20170346276A1

公开(公告)日：2017-11-30

申请号：US15163838

申请日：2016-05-25

Applicant: Analog Devices Global

Inventor： James Scanlon ,  Brian Anthony Moane ,  John Twomey

IPC: H02H9/04 ,  H01L25/065 ,  H01L27/02 ,  H02H1/00

CPC classification number: H02H9/046 ,  H01L23/60 ,  H01L2224/04042 ,  H01L2224/32245 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/15311 ,  H01L2924/00

Abstract: An integrated circuit is provided in which a surge protector, protecting against modest over-voltage events which may contain a lot of energy, and an electrostatic discharge (ESD) protector, protecting against high voltage events that may contain only a little energy, are provided within the integrated circuit package. The two types of protectors may protect against different types of electrical events.

公开(公告)号：US20180041200A1

公开(公告)日：2018-02-08

申请号：US15230519

申请日：2016-08-08

Applicant: Analog Devices Global

Inventor： Michael Lynch ,  Brian Anthony Moane

IPC: H03K5/1252 ,  H03K17/56

CPC classification number: H03K5/1252 ,  H01L2224/48137 ,  H03K17/56 ,  H04L25/0266

Abstract: A transformer based digital isolator is provided that has improved immunity to common mode interference. The improved immunity is provided by placing the transformer in association with an H-bridge drive circuit, and taking additional effort to tailor the on state resistance of the transistors to control a common mode voltage at the transformer.