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:
Mar. 09, 2021
Filed:
Jan. 19, 2018
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Stefan Jon Kristjansson, Kirkland, WA (US);
Algird Michael Gudaitis, Fall City, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
The present disclosure relates to apparatuses and methods of providing an ideal diode function to a battery having a protective field effect transistor (FET). An apparatus may include the protective FET configured to selectively connect an external voltage to a battery for charging the battery. The apparatus may also include a controller coupled with a gate of the protective FET via a node and configured to enable the protective FET. The apparatus may further include an override circuit coupled to the node and configured to selectively draw current away from the gate of the protective FET based on the external voltage or to interrupt the path from a controller to a protective FET. The override circuit of the apparatus may provide protection from cross-charging of the battery by a second battery while using the protective FET that is already used for charge/discharge protection.