POWER RECEIVING DEVICE AND WIRELESS POWER FEED SYSTEM
First Claim
1. A power receiving device comprising:
- a first electrode using an oxide semiconductor film; and
a battery,wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and a second electrode of a power transmitting device.
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Accused Products
Abstract
An electric field coupling type wireless power feed system including a power transmitting device and a power receiving device which is unlikely to be affected by a noise and which has a reduced size is provided. A capacitive coupling type wireless power feed system includes a power receiving device including a first electrode using an oxide semiconductor film, and a battery and a power transmitting device including a second electrode, wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and the second electrode. The charging of the battery may be stopped by applying a positive direct-current voltage from a charge control circuit to the first electrode.
29 Citations
22 Claims
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1. A power receiving device comprising:
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a first electrode using an oxide semiconductor film; and a battery, wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and a second electrode of a power transmitting device. - View Dependent Claims (2, 3, 4, 5)
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6. A power receiving device comprising:
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a first electrode using an oxide semiconductor film; a battery; and a charge control circuit, wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and a second electrode of a power transmitting device, and wherein the charging of the battery is stopped by applying a positive direct-current voltage from the charge control circuit to the first electrode. - View Dependent Claims (7, 8, 9, 10)
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11. A capacitive coupling type wireless power feed system comprising:
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a power receiving device including a first electrode using an oxide semiconductor film and a battery; and a power transmitting device including a second electrode, wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and the second electrode. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A capacitive coupling type wireless power feed system comprising:
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a power receiving device including a first electrode using an oxide semiconductor film, a battery, and a charge control circuit; and a power transmitting device including a second electrode, wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and the second electrode, and wherein the charging of the battery is stopped by applying a positive direct-current voltage from the charge control circuit to the first electrode. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification