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.

Date of Patent:
May. 09, 2023

Filed:

Dec. 10, 2021
Applicant:

Alpha and Omega Semiconductor International Lp, Toronto, CA;

Inventor:

Michael Scheel, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 7/20 (2006.01); G01R 31/52 (2020.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 7/20 (2013.01); G01R 31/52 (2020.01); H02H 1/0007 (2013.01);
Abstract

A system and method in an electronic system including multiple serial ports, each coupled to a port controller circuit. In one embodiment, the method includes providing a monitor terminal at each port controller circuit, each monitor terminal having a first resistance value; connecting together electrically at least two of the monitor terminals of the port controller circuits of the multiple serial ports; and sensing, at each port controller circuit, a first voltage at the monitor terminal. In operation, when the first voltage is outside a predetermined voltage window, a first signal is generated at a first port controller circuit where the first signal has a state indicating a failure detected in at least one of the port controller circuits with connected monitor terminals.


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