Wireless power-transmission shield

The present disclosure describes aspects of a wireless power-transmission shield for a wireless charger. The wireless charger includes a wireless power transmitter configured to generate an alternating magnetic field at a charging frequency. As a result of the alternating magnetic field, a spurious...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Jeong, Seong Heon
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSMISSION
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Beschreibung
Zusammenfassung:	The present disclosure describes aspects of a wireless power-transmission shield for a wireless charger. The wireless charger includes a wireless power transmitter configured to generate an alternating magnetic field at a charging frequency. As a result of the alternating magnetic field, a spurious electromagnetic field is further generated at a spurious frequency different than the charging frequency. The wireless charger includes a shield having an associated conductivity or an associated impedance. The shield is configured to be substantially transparent to the alternating magnetic field based on the charging frequency and the associated conductivity of the shield or the associated impedance of the shield. The shield is further configured to be lossy to the spurious electromagnetic field based on the spurious frequency and the associated conductivity of the shield or the associated impedance of the shield.