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:
Jul. 10, 2018
Filed:
Jan. 04, 2016
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Viola Schaffer, Freising, DE;
Martijn Fridus Snoeij, Erding, DE;
Mikhail Valeryevich Ivanov, Freising, DE;
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/72 (2006.01); G01R 33/00 (2006.01); G01R 33/04 (2006.01); G01R 35/00 (2006.01); G01R 33/02 (2006.01); G01R 15/20 (2006.01); G01K 7/10 (2006.01); G01J 5/16 (2006.01); G01L 19/00 (2006.01);
U.S. Cl.
CPC ...
G01R 33/04 (2013.01); G01R 33/0023 (2013.01); G01R 35/005 (2013.01); G01J 5/16 (2013.01); G01K 7/10 (2013.01); G01L 19/0092 (2013.01); G01R 15/20 (2013.01); G01R 33/02 (2013.01);
Abstract
Improved magnetic sensor excitation circuitry is presented for providing a periodic bidirectional excitation waveform to a fluxgate magnetic sensor excitation coil using a bridge circuit connected to the excitation coil and having lower transistors for switched selective connection to a current mirror input transistor to mirror a current provided by pulsed current source, and with integrated filtering to control pulse rise times and slew rate.