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:
Jan. 19, 2021
Filed:
Apr. 11, 2019
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Navaneeth Kumar Narayanasamy, TamilNadu, IN;
Manu Balakrishnan, Kerala, IN;
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); G01R 31/72 (2020.01); G01D 5/20 (2006.01); H01F 7/18 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 31/72 (2020.01); G01D 5/2006 (2013.01); H01F 7/1844 (2013.01); G01R 31/2829 (2013.01); H01F 2007/185 (2013.01);
Abstract
An apparatus and method of detecting movement of a plunger of the solenoid includes detecting a peak (I) in a current signal applied to a coil of the solenoid. A predetermined threshold is added to the current signal applied to the coil of the solenoid to generate a level shifted signal. The level shifted signal and the peak signal are compared to detect movement of a plunger of the solenoid.