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US 2018/0005754 A1Published application
Flux cancelling Rx coil for Wireless charging electronic device or smartphone or portable tablet or computer.
OwnerPrasad Joshiinventor
Life of this patent
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Abstract
A system for wireless charging of an electronic device having a receiving coil, having: a charger having a transmit coil, wherein the transmit coil transmits a first flux having a first magnitude and a first direction, and wherein the receiving coil transmits a second flux having a second magnitude and a second direction, wherein the first magnitude is equal to the second magnitude, and the first direction is opposite of the second direction.
Claims2
A system for wireless charging of an electronic device having a receiving coil, comprising:
- a charger having a transmit coil, wherein the transmit coil transmits a first flux having a first magnitude and a first direction, and wherein the receiving coil transmits a second flux having a second magnitude and a second direction, wherein the first magnitude is equal to the second magnitude, and the first direction is opposite of the second direction.
A method of adding a flux cancel mode to a receiver coil Rx of a wireless charging system, comprising the steps of:
- sourcing or sinking a current through the receiver coil Rx, the current having a first magnitude and a first direction;
- and
- creating a first amount of flux equal to a second amount of flux having a second direction created by a transmit coil Tx of a Wireless Power charging system, the second direction being opposite to the first direction.
Dependencies are inferred from the claim text.