APPARATUS AND METHODS FOR REDUCING MAGNETIC FIELD EMISSIONS BETWEEN WIRELESS POWER TRANSMITTERS
First Claim
1. An apparatus for providing wireless power, the apparatus comprising:
- a communication circuit configured to communicate with a first wireless power transmitter and a second wireless power transmitter; and
a controller circuit configured to;
identify a first phase of a first current provided to the first wireless power transmitter, the first current generating a first magnetic field,determine a time to provide a second current to the second wireless power transmitter, the second current generating a second magnetic field, andprovide the second current to the second wireless power transmitter at the determined time with a second phase having a phase difference between the first phase configured to reduce a magnitude of a combined magnetic field of the first and second magnetic fields in a region between the first and second wireless power transmitters.
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0 Petitions
Accused Products
Abstract
In an aspect of the disclosure, an apparatus for wirelessly transmitting power is provided. The apparatus includes a communication circuit configured to communicate with a first wireless power transmitter and a second wireless power transmitter. The apparatus further includes a controller circuit configured to identify a first phase of a first current provided to the first wireless power transmitter, the first current generating a first magnetic field. The controller circuit further determines a time to provide a second current to the second wireless power transmitter. The controller circuit further provides the second current at the determined time with a second phase having a phase difference between the first phase configured to reduce a magnitude of a combined magnetic field of the first and second magnetic fields in a region between the first and second wireless power transmitters.
31 Citations
30 Claims
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1. An apparatus for providing wireless power, the apparatus comprising:
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a communication circuit configured to communicate with a first wireless power transmitter and a second wireless power transmitter; and a controller circuit configured to; identify a first phase of a first current provided to the first wireless power transmitter, the first current generating a first magnetic field, determine a time to provide a second current to the second wireless power transmitter, the second current generating a second magnetic field, and provide the second current to the second wireless power transmitter at the determined time with a second phase having a phase difference between the first phase configured to reduce a magnitude of a combined magnetic field of the first and second magnetic fields in a region between the first and second wireless power transmitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for providing wireless power, the method comprising:
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communicating with a first wireless power transmitter and a second wireless power transmitter; identifying a first phase of a first current provided to the first wireless power transmitter, the first current generating a first magnetic field; determining a time to provide a second current to the second wireless power transmitter, the second current generating a second magnetic field; and providing the second current to the second wireless power transmitter at the determined time with a second phase having a phase difference between the first phase that reduces a magnitude of a combined magnetic field of the first and second magnetic fields in a region between the first and second wireless power transmitters. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for providing wireless power, the apparatus comprising:
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means for communicating with a first wireless power transmitter and a second wireless power transmitter; and means for identifying a first phase of a first current provided to the first wireless power transmitter, the first current generating a first magnetic field; means for determining a time to provide a second current to the second wireless power transmitter, the second current generating a second magnetic field; and means for providing the second current to the second wireless power transmitter at the determined time with a second phase having a phase difference between the first phase that reduces a magnitude of a combined magnetic field of the first and second magnetic fields in a region between the first and second wireless power transmitters. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer readable storage medium comprising instructions that when executed cause a processor to perform a method for wirelessly transmitting power, comprising:
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communicating with a first a first wireless power transmitter and a second wireless power transmitter; identifying a first phase of a first current provided to the first wireless power transmitter, the first current generating a first magnetic field; determining a time to provide a second current to the second wireless power transmitter, the second current generating a second magnetic field; and providing the second current to the second wireless power transmitter at the determined time with a second phase having a phase difference between the first phase that reduces a magnitude of a combined magnetic field of the first and second magnetic fields in a region between the first and second wireless power transmitters. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification