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. 02, 2018

Filed:

Dec. 01, 2015
Applicant:

Linear Technology Corporation, Milpitas, CA (US);

Inventors:

Andrew J. Gardner, Santa Barbara, CA (US);

Jeffrey L. Heath, Santa Barbara, CA (US);

David Dwelley, Santa Barbara, CA (US);

Assignee:

Linear Technology Corporation, Milpitas, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/20 (2006.01); H02H 3/087 (2006.01); H02H 3/06 (2006.01); H02H 11/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/202 (2013.01); H02H 3/207 (2013.01); H02H 3/06 (2013.01); H02H 11/002 (2013.01);
Abstract

In one embodiment, a PoDL system includes a PSE that uses high side and low side circuit breakers that uncouple the PSE voltage source from the wire pair in the event that a fault is detected. Faults may include a temporary short to ground, or to a battery voltage, or between the wires. The breakers perform an automatic retry operation in the event the fault has been removed. The voltages on the wires in the wire pair may be monitored to determine whether the voltages are within a normal range or indicative of a fault condition. Other embodiments are disclosed.


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