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:
Oct. 23, 2018

Filed:

Mar. 24, 2016
Applicant:

Littelfuse, Inc., Chicago, IL (US);

Inventor:

James Riley, Everson, WA (US);

Assignee:

Littelfuse, Inc., Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/08 (2006.01); H02H 3/087 (2006.01); H02H 3/093 (2006.01); G01R 19/165 (2006.01); B60R 16/03 (2006.01);
U.S. Cl.
CPC ...
H02H 3/08 (2013.01); B60R 16/03 (2013.01); G01R 19/16566 (2013.01);
Abstract

Provided herein are improved current monitoring systems for monitoring currents having large ranges. A current monitor can include two or more current sensors. At least two of the current sensors can have different current measurement ranges and different current measurement sensitivities. Each current sensor can be associated with one or more current monitoring thresholds. A time delay or time threshold can correspond to each current monitoring threshold. Each current sensor can monitor a same current having a large range of possible current values. When a predetermined current threshold is exceeded for an amount of time exceeding a corresponding time threshold, a signal can be generated by the current sensor. The generated signal can indicate that the measured current exceeds the predetermined current threshold for the corresponding predetermined period of time.


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