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:
Feb. 12, 2019
Filed:
Sep. 29, 2016
Applicant:
Energizer Brands, Llc, Saint Louis, MO (US);
Inventors:
David Spartano, Brunswick, OH (US);
Michael J. Brandon, North Ridgeville, OH (US);
Zi hong Zhang, Shen Zhen, CN;
Assignee:
Energizer Brands, LLC, Saint Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H02J 9/06 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H05B 33/089 (2013.01); H02J 7/0026 (2013.01); H02J 7/0034 (2013.01); H02J 7/0063 (2013.01); H02J 9/06 (2013.01);
Abstract
A device having an active reversal protection system is described. The system includes a pair of MOSFETs connected to parallel battery power sources. When the batteries in one of the power sources are improperly installed, the voltage delivered by that power source closes the gate of its associated MOSFET. In normal operation, the MOSFETs are connected to a microprocessor configured to operate the device. In a preferred embodiment, the device is a lighting device incorporating a light emitting diode that is driven by the MOSFETs.