WIRELESS HIGH POWER TRANSFER UNDER REGULATORY CONSTRAINTS
First Claim
Patent Images
1. A transmitter system for wireless power, comprising:
- a primary antenna, formed of an inductive element and a capacitor that are collectively magnetically resonant at a first frequency, said primary antenna embedded in the ground, and including a positioning control that detects coupling of said magnetic resonance to a secondary antenna, and automatically adjusts alignment of said primary antenna to improve said coupling.
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Accused Products
Abstract
Improved battery-charging system for a vehicle. Primary and secondary coils are located in places where the vehicle can receive power from the primary coil by pulling into a parking space, for example. The parking space may have a coil embedded in the ground, or may have an array of coils embedded in the ground. A guidance system is disclosed. Fine positioning is also disclosed. The secondary coil in the vehicle can also be raised or lowered to improve coupling.
390 Citations
31 Claims
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1. A transmitter system for wireless power, comprising:
a primary antenna, formed of an inductive element and a capacitor that are collectively magnetically resonant at a first frequency, said primary antenna embedded in the ground, and including a positioning control that detects coupling of said magnetic resonance to a secondary antenna, and automatically adjusts alignment of said primary antenna to improve said coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A transmitter system for wireless power, comprising:
a plurality of primary coils, forming an array, and closely packed to one another, and each of said primary coils including a capacitor that brings said primary coils to substantial magnetic resonance at a first frequency, said array of primary coils embedded in a ground area. - View Dependent Claims (11, 12, 13, 14)
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15. A receiver system for wireless power, comprising:
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a receiving antenna, formed of a coil and capacitor that are collectively magnetically resonant at a first frequency; and a lifting device for said receiving antenna, which lifts and lowers said receiving antenna, based on a detection of coupled magnetic resonance. - View Dependent Claims (16, 17, 18, 19, 20, 25)
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21. A receiver system for wireless power, comprising:
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a vehicle that operates based on electric power; a receiving coil, formed in said vehicle, formed of a coil and capacitor that are collectively magnetically resonant at a first frequency, and is connected to produce an output that powers said vehicle; and an alignment control for said receiving coil, which is automatically adjusted to move said receiving coil to improve coupling with said primary coil. - View Dependent Claims (22, 23, 24, 26)
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27. A method, comprising:
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magnetically receiving power in a battery operated vehicle; and responsive to detecting magnetic coupling, taking an action in the vehicle to improve coupling of the power to the vehicle system. - View Dependent Claims (28, 29, 30)
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31. A method, comprising:
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magnetically receiving power in a battery operated vehicle; and responsive to detecting magnetic coupling, using a guidance system which relies on radio positioning principles to move the vehicle to improve magnetic coupling.
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Specification