SYSTEMS AND METHODS FOR DETECTING BATTERY REMOVAL WHILE AN INFORMATION HANDLING SYSTEM IS IN AN OFF STATE

An information handling system may include a processor; a battery to supply power to the information handling system, the battery comprising a voltage regulator to power a battery management unit (BMU) on the battery and set a system present pin of the BMU to a high voltage; the BMU to: detect a vol...

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Bibliographische Detailangaben
Hauptverfasser:	Tan, Geroncio O, Shaw, Timothy C, Chang, Chia-Fa, Lin, Chia-Liang, Fang, Jui Chin
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERATION PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	An information handling system may include a processor; a battery to supply power to the information handling system, the battery comprising a voltage regulator to power a battery management unit (BMU) on the battery and set a system present pin of the BMU to a high voltage; the BMU to: detect a voltage indicator indicating a change in voltage state at a system present pin of the BMU that is externally connectable to a ground or voltage source at the information handling system, the voltage indicator indicative of an electrical coupling of the battery to the information handling system while the information handling system is in an off state; and register the voltage indicator within a battery register of the BMU; and a microcontroller, upon powering on of the information handling system, to read the voltage indicator at the battery register and determine that the battery has been coupled to the information handling system.