APPARATUSES AND METHODS TO DISTINGUISH PROPRIETARY, NON-FLOATING AND FLOATING CHARGERS FOR REGULATING CHARGING CURRENTS

APPARATUSES AND METHODS TO DISTINGUISH PROPRIETARY, NON-FLOATING AND FLOATING CHARGERS FOR REGULATING CHARGING CURRENTS

Apparatuses and methods to distinguish proprietary, non-floating and floating chargers for regulating charging current are disclosed. In one aspect, a charger detection circuit is provided in a portable electronic device. The charger detection circuit is configured to detect whether a connected Univ...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAMIDI, Madjid, Abdul, PATNAIK, Devdutt, CHOI, Jay, Yu Jae, KULKARNI, Ameya, REMPLE, Terrence, Brian
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Apparatuses and methods to distinguish proprietary, non-floating and floating chargers for regulating charging current are disclosed. In one aspect, a charger detection circuit is provided in a portable electronic device. The charger detection circuit is configured to detect whether a connected Universal Serial Bus (USB) charger is compliant with a USB battery charging specification. If the connected USB charger is non-compliant with the USB battery charging specification, the charger detection circuit is configured to further detect if the non-complaint USB charger is a non-compliant floating USB charger or a non-compliant proprietary USB charger. If the connected USB charger is determined to be a non-compliant proprietary USB charger, the portable electronic device can be configured to draw up to a maximum charging current according to the USB battery charging specification.