ACTIVE ELECTROMAGNETIC INTERFERENCE MITIGATION SYSTEM AND METHOD
First Claim
1. A system configured to mitigate electromagnetic interference generated by a source resonator of a wireless charging system, said system comprising:
- a receiver configured to receive a wireless charging signal transmitted by the source resonator;
a phase shifter in communication with said receiver and configured to generate a canceling signal that is 180°
out of phase with the wireless charging signal currently received by the receiver; and
a transmitter in communication with the phase shifter and configured to electromagnetically transmit the canceling signal, thereby canceling at least a portion of the wireless charging signal.
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Accused Products
Abstract
A system and method to mitigate electromagnetic interference generated by a source resonator of a wireless charging system is presented. The system includes a receiver that configured to receive a wireless charging signal transmitted by the source resonator, a phase shifter in communication with the receiver and configured to generate a canceling signal that is 180° out of phase with the wireless charging signal currently received by the receiver, and a transmitter in communication with the phase shifter and configured to electromagnetically transmit the canceling signal, thereby canceling at least a portion of the wireless charging signal. The canceling signal being at the same frequency and 180° out of phase interferes with the charging signal to reduce or eliminate electromagnetic interference in the vicinity of the vehicle being charged.
65 Citations
16 Claims
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1. A system configured to mitigate electromagnetic interference generated by a source resonator of a wireless charging system, said system comprising:
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a receiver configured to receive a wireless charging signal transmitted by the source resonator; a phase shifter in communication with said receiver and configured to generate a canceling signal that is 180°
out of phase with the wireless charging signal currently received by the receiver; anda transmitter in communication with the phase shifter and configured to electromagnetically transmit the canceling signal, thereby canceling at least a portion of the wireless charging signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system to mitigate electromagnetic interference generated by a source resonator of a wireless charging system, said system comprising:
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a receiver receiving a wireless charging signal transmitted by the source resonator; a phase shifter in communication with said receiver and generating a canceling signal that is 180°
out of phase with the wireless charging signal currently received by the receiver; anda transmitter in communication with the phase shifter and electromagnetically transmitting the canceling signal, thereby canceling at least a portion of the wireless charging signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method to mitigate electromagnetic interference generated by a source resonator of a wireless charging system, said method comprising the steps of:
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receiving a wireless charging signal transmitted by the source resonator; generating a canceling signal that is 180 degrees out of phase with the wireless charging signal that is currently being received; and electromagnetically transmitting the canceling signal, thereby canceling at least a portion of the wireless charging signal. - View Dependent Claims (16)
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Specification