POWER FEED DEVICE AND METHOD FOR ACQUISITION OF FREQUENCY CHARACTERISTICS
First Claim
Patent Images
1. A power feed device comprising:
- a power supply coil for supplying power to an external power reception coil by electromagnetic action;
a power supply unit for supplying an alternating current (AC) power to the power supply coil, while varying a drive frequency; and
an acquisition unit for acquiring frequency characteristics of a current value associated with a current flowing through the power supply coil, or a voltage value associated with a voltage applied to the power supply coil at a time when receiving the supplied AC power.
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Abstract
Inverter supplies an alternating current (AC) power of a constant voltage or a constant current to power supply coil while varying a drive frequency. Frequency characteristic acquisition unit acquires frequency characteristics of a current value associated with a current flowing through power supply coil that receives the supplied AC power, or a voltage value associated with a voltage applied to power supply coil.
30 Citations
17 Claims
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1. A power feed device comprising:
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a power supply coil for supplying power to an external power reception coil by electromagnetic action; a power supply unit for supplying an alternating current (AC) power to the power supply coil, while varying a drive frequency; and an acquisition unit for acquiring frequency characteristics of a current value associated with a current flowing through the power supply coil, or a voltage value associated with a voltage applied to the power supply coil at a time when receiving the supplied AC power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for acquisition of frequency characteristics comprising:
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supplying AC power to a power supply coil that supplies power to an external power reception coil, by electromagnetic action, while varying a drive frequency; and acquiring frequency characteristics of a current value associated with a current flowing through the power supply coil, or a voltage value associated with a voltage applied to the power supply coil, at a time when receiving the supplied AC power. - View Dependent Claims (15, 16, 17)
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Specification