Non-contact power supply system
First Claim
1. A power supply system capable of supplying power from a power transmitter to a power receiver in an electrically non-contact manner, comprising:
- a power transmission module attached to the power transmitter; and
a power reception module attached to the power receiver, wherein the power transmission module includes a plurality of transmission-side coils for transmitting power, the power reception module includes a plurality of reception-side coils for receiving power, and any of the transmission-side coils and any of the reception-side coils are operated in a combination realizing highest power transmission efficiency.
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Accused Products
Abstract
A power supply system capable of supplying power from a power transmitter to a power receiver in an electrically non-contact manner, in which a power transmission module is attached to the power transmitter and a power reception module is attached to the power receiver. The power transmission module has a plurality of transmission-side coils for transmitting power and a plurality of transmission-side switches for turning on/off operation of the transmission-side coils. The power reception module has a plurality of reception-side coils for receiving power, a plurality of reception-side switches for turning on/off operation of the reception-side coils and, further, has a determination circuit for performing control so as to operate any of the transmission-side coils and any of the reception-side coils in a combination realizing highest power transmission efficiency.
73 Citations
16 Claims
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1. A power supply system capable of supplying power from a power transmitter to a power receiver in an electrically non-contact manner, comprising:
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a power transmission module attached to the power transmitter; and
a power reception module attached to the power receiver, wherein the power transmission module includes a plurality of transmission-side coils for transmitting power, the power reception module includes a plurality of reception-side coils for receiving power, and any of the transmission-side coils and any of the reception-side coils are operated in a combination realizing highest power transmission efficiency. - View Dependent Claims (6, 7, 8, 9, 10, 12, 15)
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2. A power supply system capable of supplying power from a power transmitter to a power receiver in an electrically non-contact manner, comprising:
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a power transmission module attached to the power transmitter; and
a power reception module attached to the power receiver, wherein the power transmission module includes a plurality of transmission-side coils for transmitting power, a plurality of transmission-side switches for turning on/off operation of the transmission-side coils, respectively, and a transmission-side switch change-over circuit for selectively turning on one of the transmission-side switches, and the power reception module includes a plurality of reception-side coils for receiving power, a plurality of reception-side switches for turning on/off operation of the reception-side coils, respectively, a reception-side switch change-over circuit for selectively turning on one of the reception-side switches, a memory for recording a value of power energy received by each of the plurality of reception-side coils, and a determination circuit for outputting an instruction signal to the transmission-side switch change-over circuit and the reception-side switch change-over circuit so as to operate any of the transmission-side coils and any of the reception-side coils in a combination realizing the highest power transmission efficiency on the basis of the values of power energy recorded on the memory. - View Dependent Claims (3, 4, 5, 11, 13, 14, 16)
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Specification