NON-CONTACT ELECTRICITY SUPPLY DEVICE
First Claim
1. A non-contact electricity supply device comprising:
- a power-supply-side coil configured to receive an alternating current, which is supplied from an AC power source to produce a magnetic flux;
a power-supply-side capacitor connected in parallel with the power-supply-side coil to form, with the power-supply-side coil, a resonant circuit;
a power-supply-side filter circuit connected between the AC power source and the power-supply-side coil, to which the power-supply-side capacitor is connected, the power-supply-side filter circuit including a reactor and a capacitor, which are connected in series; and
a power-receiving-side coil configured to be interlinked with a magnetic flux produced by the power-supply-side coil to produce an alternating current, whereinthe capacitance of the capacitor and the inductance of the reactor of the power-supply-side filter circuit, the capacitance of the power-supply-side capacitor, and the inductance of the power-supply-side coil are set, such that,a circuit, which includes the power-supply-side filter circuit, the power-supply-side capacitor, and the power-supply-side coil, has an impedance having a frequency characteristic, in which a frequency of a minimum point, which is formed on a high-frequency side relative to a maximum point, is greater than a frequency of a fundamental wave of an alternating current supplied from the AC power source and is less than a frequency of a third order wave of the fundamental wave.
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Accused Products
Abstract
A power-supply-side coil receives an alternating current from an AC power source to produce a magnetic flux. A power-supply-side capacitor is connected in parallel with the power-supply-side coil. A power-supply-side filter circuit includes a reactor and a capacitor, which are connected in series between the AC power source and the power-supply-side coil. A power-receiving-side coil is interlinked with a magnetic flux produced by the power-supply-side coil to produce an alternating current. The power-supply-side filter circuit, the power-supply-side capacitor, and the power-supply-side form a circuit having an impedance having a frequency characteristic, in which a frequency of a minimum point formed on a high-frequency side relative to a maximum point is greater than a frequency of a fundamental wave of an alternating current supplied from the AC power source and is less than a frequency of a third order wave of the fundamental wave.
24 Citations
7 Claims
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1. A non-contact electricity supply device comprising:
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a power-supply-side coil configured to receive an alternating current, which is supplied from an AC power source to produce a magnetic flux; a power-supply-side capacitor connected in parallel with the power-supply-side coil to form, with the power-supply-side coil, a resonant circuit; a power-supply-side filter circuit connected between the AC power source and the power-supply-side coil, to which the power-supply-side capacitor is connected, the power-supply-side filter circuit including a reactor and a capacitor, which are connected in series; and a power-receiving-side coil configured to be interlinked with a magnetic flux produced by the power-supply-side coil to produce an alternating current, wherein the capacitance of the capacitor and the inductance of the reactor of the power-supply-side filter circuit, the capacitance of the power-supply-side capacitor, and the inductance of the power-supply-side coil are set, such that, a circuit, which includes the power-supply-side filter circuit, the power-supply-side capacitor, and the power-supply-side coil, has an impedance having a frequency characteristic, in which a frequency of a minimum point, which is formed on a high-frequency side relative to a maximum point, is greater than a frequency of a fundamental wave of an alternating current supplied from the AC power source and is less than a frequency of a third order wave of the fundamental wave. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification