Inductive Power Transfer Using a Relay Coil
First Claim
1. A wireless power charging system for charging a separate device having a receiver that includes a receiver coil, the separate device conforming to a specification for the wireless power charging system, the wireless power charging system comprising:
- a transmitter including a driver coil configured to be driven by a power source; and
a relay coil resonator including a relay coil configured for relaying power by inductive coupling from the driver coil to the receiver coil;
wherein
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Accused Products
Abstract
A wireless power charging system includes an intermediate relay coil. In one aspect, a wireless power charging system is designed to charge a separate device having a receiver that includes a receiver coil. The separate device conforms to a specification for the wireless power charging system, which may be a public standard for wireless power charging systems. The wireless power charging system includes a transmitter and a relay coil resonator. The transmitter includes a driver coil that is driven by a power source. The relay coil resonator includes a relay coil that is used to inductively couple power from the driver coil to the receiver coil. The wireless power charging system is designed so that it satisfies Eqn. (11) above.
36 Citations
14 Claims
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1. A wireless power charging system for charging a separate device having a receiver that includes a receiver coil, the separate device conforming to a specification for the wireless power charging system, the wireless power charging system comprising:
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a transmitter including a driver coil configured to be driven by a power source; and a relay coil resonator including a relay coil configured for relaying power by inductive coupling from the driver coil to the receiver coil; wherein - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification