Feed unit, electronic, unit, and feed system
First Claim
Patent Images
1. A power receiving circuit, comprising:
- a first LC parallel resonant circuit; and
a first LC series resonant circuit that comprises a first reactance element configured to electrically connect in series with the first LC parallel resonant circuit, whereinthe first LC parallel resonant circuit and the first LC series resonant circuit have a first resonance frequency,the power receiving circuit is configured to receive power from a power transmitting circuit in a noncontact manner,the power transmitting circuit comprises;
a second LC parallel resonant circuit; and
a second LC series resonant circuit that comprises a second reactance element electrically connected in series with the second LC parallel resonant circuit, andthe second LC parallel resonant circuit and the second LC series resonant circuit have a second resonance frequency.
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Abstract
A power receiving circuit, a power transmitting circuit, an apparatus, and a feed system are disclosed. The power receiving circuit receives power in a noncontact manner, and comprises an LC parallel resonant circuit and a reactance element that is electrically connected in series to the LC parallel resonant circuit. The reactive element may be a capacitive or inductive element. In effect, a coil or capacitor in the LC parallel resonant circuit and the reactance element define another LC resonant circuit, namely, an LC series resonant circuit. The power transmitting circuit transmits power in a noncontact manner, and in one example, may also include a similar configuration.
10 Citations
21 Claims
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1. A power receiving circuit, comprising:
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a first LC parallel resonant circuit; and a first LC series resonant circuit that comprises a first reactance element configured to electrically connect in series with the first LC parallel resonant circuit, wherein the first LC parallel resonant circuit and the first LC series resonant circuit have a first resonance frequency, the power receiving circuit is configured to receive power from a power transmitting circuit in a noncontact manner, the power transmitting circuit comprises; a second LC parallel resonant circuit; and a second LC series resonant circuit that comprises a second reactance element electrically connected in series with the second LC parallel resonant circuit, and the second LC parallel resonant circuit and the second LC series resonant circuit have a second resonance frequency. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power transmitting circuit, comprising:
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a first LC parallel resonant circuit; and a first LC series resonant circuit that comprises a first reactance element configured to electrically connect in series with the first LC parallel resonant circuit, wherein the first LC parallel resonant circuit and the first LC series resonant circuit have a first resonance frequency, the power transmitting circuit is configured to transmit power to a power receiving circuit in a noncontact manner, the power receiving circuit comprises; a second LC parallel resonant circuit; and a second LC series resonant circuit that comprises a second reactance element electrically connected in series with the second LC parallel resonant circuit, and the second LC parallel resonant circuit and the second LC series resonant circuit have a second resonance frequency. - View Dependent Claims (8, 9, 10)
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11. An apparatus, comprising:
a power receiving section that includes; a first LC parallel resonant circuit; a first LC series resonant circuit that comprises a first reactance element configured to electrically connect in series with the first LC parallel resonant circuit, wherein the first LC parallel resonant circuit and the first LC series resonant circuit have a first resonance frequency, the power receiving section is configured to receive power from a power transmitting section in a noncontact manner, the power transmitting section comprises; a second LC parallel resonant circuit; and a second LC series resonant circuit that comprises a second reactance element electrically connected in series with the second LC parallel resonant circuit, and the second LC parallel resonant circuit and the second LC series resonant circuit have a resonance frequency. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A feed system, comprising:
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a feed unit; and at least one target unit configured to receive power transmitted from the feed unit, wherein the at least one target unit includes a power receiving section, the power receiving section includes; a first LC parallel resonant circuit; and a first LC series resonant circuit that comprises a first reactance element configured to electrically connect in series with the first LC parallel resonant circuit, the first LC parallel resonant circuit and the first LC series resonant circuit have a first resonance frequency, the power receiving section is configured to receive the power from the feed unit in a noncontact manner, the feed unit includes a power transmitting section, the power transmitting section comprises; a second LC parallel resonant circuit; and a second LC series resonant circuit that comprises a second reactance element configured to electrically connect in series with the second LC parallel resonant circuit, and the second LC parallel resonant circuit and the second LC series resonant circuit have a resonance frequency. - View Dependent Claims (19, 20)
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21. A feed system, comprising:
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a feed unit; and at least one target unit configured to receive power transmitted from the feed unit, wherein the feed unit includes a power transmission section, the power transmission section includes; a first LC parallel resonant circuit; and a first LC series resonant circuit that comprises a first capacitive element configured to electrically connect in series with the first LC parallel resonant circuit, the first LC parallel resonant circuit and the first LC series resonant circuit have a first resonance frequency, the power transmission section is configured to transmit the power to the at least one target unit in a noncontact manner, the at least one target unit includes a power receiving section, the power receiving section includes; a second LC parallel resonant circuit; and a second LC series resonant circuit that comprises a second capacitive element configured to electrically connect in series with the second LC parallel resonant circuit, and the second LC parallel resonant circuit and the second LC series resonant circuit have a second resonance frequency.
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Specification