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. 15, 2009
Filed:
Apr. 14, 2005
H. Winston Maue, Northville, MI (US);
John F. Nathan, White Lake, MI (US);
Michael Pajor, Northville, MI (US);
Michael Noorman, Jenison, MI (US);
John R. Ballard, Midland, MI (US);
Jerremy Anderson, St. Clair Shores, MI (US);
Paul Kucher, Saginaw, MI (US);
H. Winston Maue, Northville, MI (US);
John F. Nathan, White Lake, MI (US);
Michael Pajor, Northville, MI (US);
Michael Noorman, Jenison, MI (US);
John R. Ballard, Midland, MI (US);
Jerremy Anderson, St. Clair Shores, MI (US);
Paul Kucher, Saginaw, MI (US);
Lear Corporation, Southfield, MI (US);
Abstract
A stall protection circuit is provided for bidirectional motor operation that is controlled by a half bridge switch that has forward, reverse and off positions. A method of protecting a motor is also disclosed. A Hall effect current sensor may be provided in a stall current protection circuit that engages a latching circuit. The latching circuit is operative to interrupt current flowing to the motor by disabling MOSFETs on opposite sides of the motor. Alternatively, FET voltage from drain to source may be used to measure the current supplied to the motor that is used to engage the latching circuit.