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:
Aug. 22, 2017
Filed:
Aug. 31, 2015
Texas Instruments Incorporated, Dallas, TX (US);
Deric Wayne Waters, Dallas, TX (US);
Roy Alan Hastings, Allen, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A method of power delivery. Port controllers each include a state machine, an IO pin, a receptacle supply pin receiving power from a receptacle, and a gate driver pin coupled to a control node of a power path switch each having an output coupled to a load. The state machines implement a dead-battery control (DBC) algorithm upon sensing a DB condition. The DBC algorithm pulls up the IO pin, starts a timer for Tand monitors the IO pin for TIf the IO pin is pulled low, the port controller is reset for a pulled low period, the DBC algorithm is then restarted or its IO pin is monitored until not pulled low for TOne port controller pulls its IO pin low for an assertion period to claim priority over the other port controller, and closes its associated power path switch to exclusively provide power to the load.