TOUCH STYLUS WITH WIRELESS CHARGING FUNCTION AND OPERATING METHOD THEREOF
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United States of America Patent
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Issued Date -
Jul 23, 2015
app pub date -
Dec 17, 2014
filing date -
Jan 17, 2014
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Abstract
A touch stylus with wireless charging function and operating method thereof are disclosed. The touch stylus includes a receiving coil, a resonant circuit, a rectifier circuit, and a voltage regulation output circuit. The receiving coil is used to receive an AC signal from outside. The resonant circuit is coupled to the receiving coil and used to perform a resonant process on the AC signal. The rectifier circuit is coupled to the resonant circuit and used to perform a rectifier process on the resonated AC signal. The voltage regulation output circuit is coupled to the rectifier circuit and used to perform a voltage regulation process on the rectified AC signal to convert the rectified AC signal into an output power for the operation of the touch stylus.
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