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:
Aug. 09, 2016
Filed:
Dec. 16, 2011
Applicant:
Peter Michael Tyler, Cheltenham, GB;
Inventor:
Peter Michael Tyler, Cheltenham, GB;
Assignee:
GE AVIATION SYSTEMS LIMITED, Cheltenham, Gloucestershire, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G01R 31/327 (2006.01); G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3277 (2013.01); G01R 31/008 (2013.01); G01R 31/024 (2013.01); H01L 2924/0002 (2013.01);
Abstract
A method of testing a voltage protection device in a circuit is provided. The circuit comprises a source and load and a detector is provided in parallel with the protection device. The method comprises opening a switching device provided in the circuit. The method further comprises detecting a property of a voltage spike caused by the rate of change of current in the circuit inductance produced by the opening of the switching device to determine the condition of the protection device.