POWER-RECEIVING DEVICE, WIRELESS POWER-FEEDING SYSTEM INCLUDING POWER-RECEIVING DEVICE, AND WIRELESS COMMUNICATION SYSTEM INCLUDING POWER-RECEIVING DEVICE
First Claim
1. A device comprising:
- a power-receiving resonance coil on a substrate;
a power-receiving coil on the substrate;
a wireless power-feeding unit electrically connected to the power-receiving coil; and
a wireless communication unit electrically connected to the power-receiving coil,wherein the wireless power-feeding unit and the wireless communication unit are provided over the substrate.
1 Assignment
0 Petitions
Accused Products
Abstract
When a portable electronic appliance is provided with two systems, a wireless power-feeding system and a wireless communication system, each system requires two power-receiving devices, a coil and an antenna, leading to a problem of increased electronic appliance size and cost. Wireless power feeding employs the resonance method and uses a resonance coil using the resonance method and a power-receiving coil that receives power from the resonance coil. At least one of the resonance coil and the power-receiving coil can also be used as an antenna for wireless communication. Thus, a power-receiving device that can be used for two systems, wireless power feeding and wireless communication, can be provided.
269 Citations
20 Claims
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1. A device comprising:
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a power-receiving resonance coil on a substrate; a power-receiving coil on the substrate; a wireless power-feeding unit electrically connected to the power-receiving coil; and a wireless communication unit electrically connected to the power-receiving coil, wherein the wireless power-feeding unit and the wireless communication unit are provided over the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising:
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a power-receiving resonance coil on a substrate; a capacitor electrically connected to the power-receiving resonance coil; a power-receiving coil on the substrate; a wireless power-feeding unit electrically connected to the power-receiving coil; and a wireless communication unit electrically connected to the power-receiving coil, wherein the wireless power-feeding unit and the wireless communication unit are integrated over the substrate. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A power-receiving device comprising:
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a power-receiving resonance coil configured to generate a first high-frequency voltage by a resonance method; and a power-receiving coil configured to generate a second high-frequency voltage by using electromagnetic induction between the power-receiving coil and the power-receiving resonance coil, wherein at least one of the power-receiving resonance coil and the power-receiving coil receives a signal on one of a carrier wave and an amplitude modulation wave by using electromagnetic induction, wherein the power-receiving coil is electrically connected to a wireless power-feeding unit and a wireless communication unit, wherein the wireless power-feeding unit includes; a rectifier circuit configured to rectify the second high-frequency voltage generated by the power-receiving coil; a converter electrically connected to the rectifier circuit; and a load configured to receive power converted by the converter, wherein the wireless communication unit includes; a reception circuit configured to receive the signal; a power-receiving controller configured to control the signal received by the reception circuit; a modulation transistor electrically connected to the power-receiving controller; and a load modulation element electrically connected to the modulation transistor, and wherein the wireless power-feeding unit and the wireless communication unit are integrated. - View Dependent Claims (16, 17)
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18. A power-receiving device comprising:
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a power-receiving resonance coil configured to generate a first high-frequency voltage by a resonance method; and a power-receiving coil configured to generate a second high-frequency voltage by using electromagnetic induction between the power-receiving coil and the power-receiving resonance coil, wherein at least one of the power-receiving resonance coil and the power-receiving coil receives a signal on one of a carrier wave and an amplitude modulation wave by using electromagnetic induction, wherein the power-receiving coil is electrically connected to a wireless power-feeding unit and a wireless communication unit, wherein the wireless power-feeding unit includes; a rectifier circuit configured to rectify the second high-frequency voltage generated by the power-receiving coil; a converter electrically connected to the rectifier circuit; and a load receiving power converted by the converter, wherein the wireless communication unit includes; a reception circuit configured to receive the signal; a power-receiving controller configured to control the signal received by the reception circuit; a modulation transistor electrically connected to the power-receiving controller; and a load modulation element electrically connected to the modulation transistor, wherein the power-receiving resonance coil and the power-receiving coil are placed to at least partly overlap with each other, and wherein the wireless power-feeding unit and the wireless communication unit are integrated. - View Dependent Claims (19, 20)
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Specification