INDUCTIVE POWER SUPPLY SYSTEM WITH MULTIPLE COIL PRIMARY
First Claim
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1. An inductive power supply for supplying wireless power to a remote device including power demand information, said inductive power supply comprising:
- a plurality of tank circuits, wherein each tank circuit includes a primary and a capacitor electrically connected in series, wherein each of said plurality of tank circuits are capable of being energized to transfer power wirelessly to the remote device;
a receiver for receiving power demand information from the remote device; and
a controller in electrical communication with said receiver and said plurality of tank circuits, said controller programmed to select at least one of said plurality of tank circuits to transfer power wirelessly to the remote device, wherein said selection is determined as a function of said power demand information received from the remote device.
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Abstract
An inductive power supply including multiple tank circuits and a controller for selecting at least one of the tank circuits in order to wirelessly transfer power based on received power demand information. In addition, a magnet may be used to align multiple remote devices with the inductive power supply. In one embodiment, different communication systems are employed depending on which coil is being used to transfer wireless power.
14 Citations
18 Claims
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1. An inductive power supply for supplying wireless power to a remote device including power demand information, said inductive power supply comprising:
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a plurality of tank circuits, wherein each tank circuit includes a primary and a capacitor electrically connected in series, wherein each of said plurality of tank circuits are capable of being energized to transfer power wirelessly to the remote device; a receiver for receiving power demand information from the remote device; and a controller in electrical communication with said receiver and said plurality of tank circuits, said controller programmed to select at least one of said plurality of tank circuits to transfer power wirelessly to the remote device, wherein said selection is determined as a function of said power demand information received from the remote device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An inductive power supply for supplying wireless power to a remote device including power demand information, said inductive power supply comprising:
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a first tank circuit including a plurality of primaries, wherein each of said plurality of primaries is capable of being energized to transfer power wirelessly to the remote device; a receiver for receiving power demand information from the remote device, wherein said power demand information includes a power adjustment; and a controller in electrical communication with said receiver and said tank circuit, said controller programmed to select at least one of said plurality of primaries of said tank circuit to transfer power wirelessly to the remote device, wherein said selection is determined as a function of said power adjustment received from the remote device. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An inductive power supply for supplying wireless power to a first remote device or a second remote device, said inductive power supply comprising:
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a tank circuit including a first primary coil and a second primary coil, wherein said first primary coil and said second primary coil are arranged concentrically, wherein each of said first primary coil and said second primary coil are capable of being energizing to transfer power wirelessly; a magnet arranged coaxially with said first primary coil and said second primary coil, wherein said magnet provides a magnetic force to assist in alignment, wherein said magnetic force of said magnet assists in aligning the first remote device with said first primary coil and wherein said magnetic force of said magnet assists in aligning the second remote device with said second primary coil. - View Dependent Claims (18)
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Specification