Metal object detecting device

A metal object detecting device for a wireless charging device is provided and includes an object detection coil, a relay and an object detector circuit. The wireless charging device has a transmitter coil, a first digital signal processor and a receiver coil. The object detection coil is disposed a...

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Bibliographische Detailangaben
1. Verfasser:	Wang, Chen-Hsung
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETECTING MASSES OR OBJECTS ELECTRICITY GENERATION GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY TESTING
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Beschreibung
Zusammenfassung:	A metal object detecting device for a wireless charging device is provided and includes an object detection coil, a relay and an object detector circuit. The wireless charging device has a transmitter coil, a first digital signal processor and a receiver coil. The object detection coil is disposed above the transmitter coil. The relay is connected to the object detection coil. The object detector circuit is connected to the relay and the first digital signal processor. The transmitter coil transmits a power signal to the receiver coil within a power supplying time. The relay is turned on during an object detection time such that an oscillation signal is generated from the object detection coil and the object detector circuit as a basis for determining whether or not a metal object is close to the wireless charging device.