WIRELESS CHARGING OPTIMIZATION
First Claim
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1. A device comprising:
- a coil antenna of continuous loop; and
a near field communications (NFC) module coupled to the coil antenna, the NFC module comprising;
an amplitude detector that is configured to measure an induced current in the coil antenna at receive mode;
an indicator that is configured to indicate receive power.
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Abstract
Described herein are techniques related to near field coupling and wireless charging or wireless power transfer (WPT). More particularly, an induced current at a receiving coil antenna is measured and utilized as a basis for re-alignment with a transmitting coil antenna is described.
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Citations
22 Claims
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1. A device comprising:
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a coil antenna of continuous loop; and a near field communications (NFC) module coupled to the coil antenna, the NFC module comprising; an amplitude detector that is configured to measure an induced current in the coil antenna at receive mode; an indicator that is configured to indicate receive power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a coil antenna of continuous loop; and a near field communications (NFC) module coupled to the coil antenna, the NFC module comprising; a rectifier that is configured to convert an alternating induced current into a direct current (DC); an amplitude detector that is configured to measure the DC; an analog to digital converter (ADC) that is configured to transform the measured DC into a digital signal; and a receiver power indicator that is configured to display an amount of the digital signal, wherein the amount is utilized as a basis for re-aligning a position of the coil antenna if the amount is lower than a receiver threshold, the receiver threshold is configured to include a minimum value of the alternating induced current to determine if re-aligning is required. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of optimizing wireless charging in a device, the method comprising:
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establishing a near field coupling through a coil antenna of continuous loop; receiving magnetic fields by the coil antenna during receive mode; measuring an induced current that is generated by the magnetic fields; displaying the measured induced current, the measured induced current is utilized as a basis for re-aligning a position of the coil antenna if the measured induced current is lower than a receiver threshold, the receiver threshold is configured to include a minimum value of the measured induced current to determine if the re-aligning is required. - View Dependent Claims (17, 18, 21, 22)
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Specification