NON-CONTACT POWER SUPPLY DEVICE AND NON-CONTACT POWER SUPPLY METHOD
First Claim
Patent Images
1. A non-contact power supply device transmitting a short beacon according to a first period to recognize a power receiving device and transmitting a charging power in a contactless manner, the non-contact power supply device comprising:
- a power transmitting unit controlling the transmission of the short beacon and the charging power;
a power transmitting coil transmitting the short beacon and the charging power in a contactless manner according to the controlling of the power transmitting unit; and
a controlling unit controlling variations in signal levels of the short beacon.
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Abstract
There are provided a non-contact power supply device and a non-contact power supply method, in which a short beacon is transmitted to recognize a power receiving device, a long beacon is transmitted to wake-up a communications circuit of the power receiving device, and charging power is transmitted in a contactless manner, wherein at least one of signal levels of the short beacon and signal levels of the long beacon is varied.
13 Citations
35 Claims
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1. A non-contact power supply device transmitting a short beacon according to a first period to recognize a power receiving device and transmitting a charging power in a contactless manner, the non-contact power supply device comprising:
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a power transmitting unit controlling the transmission of the short beacon and the charging power; a power transmitting coil transmitting the short beacon and the charging power in a contactless manner according to the controlling of the power transmitting unit; and a controlling unit controlling variations in signal levels of the short beacon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-contact power supply device transmitting a long beacon according to a period to wake-up a communications circuit of a power receiving device and transmitting a charging power in a contactless manner, the non-contact power supply device comprising:
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a power transmitting unit controlling the transmission of the long beacon and the charging power; a power transmitting coil transmitting the long beacon and the charging power in a contactless manner according to the controlling of the power transmitting unit; and a controlling unit controlling variations in signal levels of the long beacon. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A non-contact power supply device transmitting a short beacon according to a first period to recognize a power receiving device, waking-up a communications circuit of the power receiving device by transmitting a long beacon according to a second period different from the first period, and transmitting a charging power in a contactless manner, the non-contact power supply device comprising:
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a power transmitting unit controlling the transmission of the short beacon, the long beacon, and the charging power; a power transmitting coil transmitting the short beacon, the long beacon, and the charging power in a contactless manner according to the controlling of the power transmitting unit; and a controlling unit controlling variations in signal levels of the short beacon and signal levels of the long beacon. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A non-contact power supply method comprising:
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a power save state receiving an advertisement signal from a power receiving device by transmitting a short beacon for recognizing the power receiving device according to a first period and transmitting a long beacon for waking-up a communications circuit of the power receiving device according to a second period different from the first period by a non-contact power supply device; a low power state performing communications between the non-contact power supply device and the power receiving device; and a power transfer state transmitting the charging power from the non-contact power supply device to the power receiving device, wherein at least one of signal levels of the short beacon and signal levels of the long beacon is varied. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification