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:
Dec. 24, 2019
Filed:
Feb. 06, 2017
Applicant:
Keithley Instruments, Llc, Solon, OH (US);
Inventors:
Benjamin J. Yurick, Garrettsville, OH (US);
James A. Niemann, Chagrin Falls, OH (US);
Assignee:
KEITHLEY INSTRUMENTS, LLC, Solon, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 35/00 (2006.01); G01R 15/14 (2006.01);
U.S. Cl.
CPC ...
G01R 35/00 (2013.01); G01R 15/14 (2013.01);
Abstract
A mechanism is disclosed for mitigating common mode current in a test and measurement device. A measurement current can be received from a device under test via a measurement lead that couples a transformer in the test and measurement device with the device under test. The test and measurement device can then be calibrated to apply a nulling current to cancel the common mode current from the measurement current. Other embodiments can be described and/or claimed herein.