NON-CONTACT POWER SUPPLY DEVICE
First Claim
1. A non-contact power supply device comprising:
- a non-contact power supply circuit supplying AC power in a non-contact manner with the circuit being configured by a power supply element disposed in a power supply section and a power receiving element disposed in a power receiving section capable of being relatively displaced with respect to the power supply section facing each other;
a phase difference detecting section detecting a phase difference between a voltage phase of an AC voltage applied to the non-contact power supply circuit in the power supply section and a current phase of an AC current flowing through the power supply element, the phase difference changing depending on a relative positional relationship between the power supply element and the power receiving element; and
a determination section determining the relative positional relationship between the power supply element and the power receiving element based on the phase difference.
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Accused Products
Abstract
A non-contact power supply device includes a non-contact power supply circuit supplying AC power in a non-contact manner with the circuit being configured by a power supply element disposed in a power supply section and a power receiving element disposed in a power receiving section capable of being relatively displaced with respect to the power supply section facing each other, a phase difference detecting section detecting a phase difference between a voltage phase of an AC voltage applied to the non-contact power supply circuit in the power supply section and a current phase of an AC current flowing through the power supply element, the phase difference changing depending on a relative positional relationship between the power supply element and the power receiving element, and a determination section determining the relative positional relationship between the power supply element and the power receiving element based on the phase difference.
30 Citations
8 Claims
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1. A non-contact power supply device comprising:
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a non-contact power supply circuit supplying AC power in a non-contact manner with the circuit being configured by a power supply element disposed in a power supply section and a power receiving element disposed in a power receiving section capable of being relatively displaced with respect to the power supply section facing each other; a phase difference detecting section detecting a phase difference between a voltage phase of an AC voltage applied to the non-contact power supply circuit in the power supply section and a current phase of an AC current flowing through the power supply element, the phase difference changing depending on a relative positional relationship between the power supply element and the power receiving element; and a determination section determining the relative positional relationship between the power supply element and the power receiving element based on the phase difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification