The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2019
Filed:
Sep. 13, 2017
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Alexander Latham, Harvard, MA (US);
Joseph James Judkins, III, Bedford, NH (US);
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 5/00 (2006.01); H04B 5/02 (2006.01); H01L 43/02 (2006.01); H04B 17/17 (2015.01); H04B 17/29 (2015.01); H01L 25/065 (2006.01); H04B 17/18 (2015.01);
U.S. Cl.
CPC ...
H01L 25/0655 (2013.01); H01L 43/02 (2013.01); H04B 5/0031 (2013.01); H04B 5/0075 (2013.01); H04B 5/0093 (2013.01); H04B 5/02 (2013.01); H04B 17/17 (2015.01); H04B 17/29 (2015.01); H01L 2224/48137 (2013.01); H04B 17/18 (2015.01);
Abstract
Methods and apparatus for a signal isolator having first and second dies separated by a voltage barrier region, wherein transmit and receive paths of the first and second dies provide bi-directional transfer of feedback and/or diagnostic signals between the first and second die. In embodiments, transmitter refresh signals and receiver refresh signals are exchanged to detect fault conditions.