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:
Jul. 16, 2019
Filed:
Mar. 10, 2014
Dell Products L.p., Round Rock, TX (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A system, method, and computer-readable medium are disclosed for detecting when a lower power adapter is coupled with an information handling system having higher power requirements. More specifically, in certain embodiments, a circuit (such as an embedded controller (EC)) detects an adapter wattage when an adapter plug-in is detected. If a lower wattage power adapter is detected (e.g., a 45 W power adapter), the embedded controller activates a signal (e.g., an AC_DISABLE signal) to stop powering the information handling system from the adapter. In certain embodiments, the information handling system is powered from a battery associated with the information handling system when the power adapter power capacity does not satisfy the power requirements of the information handling system. In certain embodiments, the circuit substantially simultaneously generates a low power warning. In certain embodiments, the adapter wattage may be detected via an adapter identifier (e.g., power supply identifier (PSID) signal) which is provided via a bus such as a single line bus.