Charging pads and methods for charging receiver devices having different frequency standards

A charging pad includes a power drive unit and a transmitting unit. The power drive unit includes a first oscillator to generate a first AC voltage signal having a first frequency, and a first amplifier to amplify the first AC voltage signal. Also, the power drive unit includes a second oscillator t...

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Bibliographische Detailangaben
Hauptverfasser:	Ramachandrapanicker, Somakumar, Kanakasabai, Viswanathan, Raghunathan, Arun Kumar
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A charging pad includes a power drive unit and a transmitting unit. The power drive unit includes a first oscillator to generate a first AC voltage signal having a first frequency, and a first amplifier to amplify the first AC voltage signal. Also, the power drive unit includes a second oscillator to generate a second AC voltage signal having a second frequency, and a second amplifier to amplify the second AC voltage signal. Additionally, the power drive unit includes an adder to combine the amplified first AC voltage signal and the amplified second AC voltage signal. Furthermore, the transmitting unit includes a first frequency coil configured to transmit the amplified first AC voltage signal having the first frequency, and a second frequency coil configured to transmit the amplified second AC voltage signal having the second frequency.