Wireless power reception devices
First Claim
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1. A wireless power reception device, comprising:
- a resonance coil configured to receive power from outside of the wireless power reception device in a magnetic resonance type;
a load coil inductively coupled to the resonance coil to receive the power from the resonance coil in an electromagnetic induction type; and
a load configured to receive the power from the load coil;
wherein the load coil is short-circuited and the load coil and the load are not connected to each other during a first interval, andwherein the load coil is not short-circuited and the load coil and the load are connected to each other during a second interval that is different from the first interval.
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Abstract
A wireless power reception device may comprise a resonance coil configured to receive power from outside of the wireless power reception device in a magnetic resonance type; a load coil inductively coupled to the resonance coil to receive the power from the resonance coil in an electromagnetic induction type; and/or a load configured to receive the power from the load coil. The load coil may be short-circuited and/or the load coil and the load may not be connected to each other during a first interval. The load coil may not be short-circuited and/or the load coil and the load may be connected to each other during a second interval that is different from the first interval.
32 Citations
14 Claims
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1. A wireless power reception device, comprising:
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a resonance coil configured to receive power from outside of the wireless power reception device in a magnetic resonance type; a load coil inductively coupled to the resonance coil to receive the power from the resonance coil in an electromagnetic induction type; and a load configured to receive the power from the load coil; wherein the load coil is short-circuited and the load coil and the load are not connected to each other during a first interval, and wherein the load coil is not short-circuited and the load coil and the load are connected to each other during a second interval that is different from the first interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless power reception device, comprising:
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a resonance coil configured to receive power from outside of the wireless power reception device in a magnetic resonance type; a load configured to receive the power from the resonance coil; a capacitor connected in parallel between the resonance coil and the load; a first switch configured to connect the resonance coil and the capacitor to each other; and a second switch configured to connect the capacitor and the load to each other, wherein the resonance coil is connected to the capacitor and the capacitor and the load are not connected to each other during a first interval, and wherein the resonance coil is not connected to the capacitor and the capacitor and the load are connected to each other during a second interval that is different from the first interval, wherein the first and second switches operate in opposite states during the first and second intervals. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification