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:
Oct. 24, 2023
Filed:
Sep. 19, 2018
Applicant:
Suzhou Littelfuse Ovs Co., Ltd., Suzhou, CN;
Inventor:
Jiao Yu, Suzhou, CN;
Assignee:
Suzhou Littelfuse OVS Co., Ltd., Suzhou, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 3/488 (2006.01); G01P 1/02 (2006.01); H05K 3/30 (2006.01);
U.S. Cl.
CPC ...
G01P 3/488 (2013.01); G01P 1/026 (2013.01); H05K 3/301 (2013.01); H05K 2201/10151 (2013.01);
Abstract
A speed sensor assembly () includes a printed circuit board (PCB) () having a first main side and a second main side, a magnet () directly coupled to the first main side of the PCB (), a sensor () electrically connected to the PCB (), and a pole piece () directly coupled to the magnet () and to the sensor (), wherein the magnet () includes a slot partially enclosed by the pole piece (). The speed sensor assembly () including a slotted magnet () to reduce magnetic field amplitude for single sensing element hall effect sensor applications. The speed sensor assemblies () operate with both minimum and maximum air gaps.