Electronic device with wireless charging and battery heating

A wireless power transmitting device may transmit wireless power signals to a wireless power receiving electronic device. The electronic device may have a coil that receives the transmitted wireless power signals and may have a power receiving circuit that rectifies the received wireless power signa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Provencher, Corey S, Pang, Jason L, Yeh, Michael V
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	A wireless power transmitting device may transmit wireless power signals to a wireless power receiving electronic device. The electronic device may have a coil that receives the transmitted wireless power signals and may have a power receiving circuit that rectifies the received wireless power signals to produce a corresponding direct-current voltage signal. The direct-current signal may be used to power circuitry in the electronic device and may be used to charge a battery in the electronic device. Control circuitry in the electronic device may use a temperature sensor to make temperature measurements. In response to detecting that the device is below a given threshold temperature and based on other information such as information on which applications are running on a controller in device, the device may supply drive current signals to the coil to heat the battery and improve battery performance.