WIRELESS POWER TRANSMITTER

A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal i...

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Bibliographische Detailangaben
Hauptverfasser: SHIN Eun Young, HONG Yun Ki, SON Joung Ho, KIM Dae Sik, PARK Seung Won, HA Keun Soo
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal in a detection mode for determining whether any one or both of an external object approaching and a type of the external object. The controller is configured to control the switching element, and gradually increase a duty cycle of a gate signal provided to the switching element, in the detection mode.