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:
Dec. 30, 2014

Filed:

Apr. 30, 2008
Applicants:

Bryan D. Boswell, Loveland, CO (US);

Robert Wayne Leiby, Fort Collins, CO (US);

Steven J. Narciso, Loveland, CO (US);

Inventors:

Bryan D. Boswell, Loveland, CO (US);

Robert Wayne Leiby, Fort Collins, CO (US);

Steven J. Narciso, Loveland, CO (US);

Assignee:

Keysight Technologies, Inc., Santa Rosa, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 7/22 (2006.01); H02H 9/00 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
H02H 9/001 (2013.01); G01R 31/28 (2013.01);
Abstract

A dynamic switch contact protection circuit and technique to protect a channel switch within an electrical system by limiting transients when the switch is turned on or turned off. The protection circuit comprises switching between a high resistance path and a low resistance path. The high resistance path comprises a resistor. A bypass switch is connected in parallel to the resistor to affect the low resistance path. The protection circuit can connect or disconnect switch cards to the electrical system enabling the creation of a larger switching structure. Disconnected switch cards within a switching structure preserves system bandwidth by limiting capacitive loading. Electing which switch to close last or open first can prolong the length of usage of the switches.


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