Non-contact power receiving apparatus and vehicle having the same
First Claim
1. A non-contact power receiving apparatus receiving electric power from a power transmission coil for transmitting the electric power received from a power supply, said non-contact power receiving apparatus comprising:
- a power reception coil configured to receive, by non-contact power feeding, the electric power transmitted from said power transmission coil;
a rectifier configured to rectify the electric power received by said power reception coil;
a load disposed to receive the electric power rectified by said rectifier;
a resistance and a connection switch provided in a pair of power lines comprising a first power line and a second power line for transmitting the electric power from said power reception coil to said load, wherein the first power line comprises a first node, wherein the second power line comprises a second node, and wherein said resistance and said connection switch is connected in series between said pair of power lines such that the resistance and a connection switch form a circuit formed in series in between the first and second nodes; and
a control device for controlling said connection switch.
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Accused Products
Abstract
A non-contact power receiving apparatus includes a power reception coil receiving, by electromagnetic resonance, the electric power transmitted from a power transmission coil; a rectifier rectifying the electric power received by the power reception coil, a load receiving the electric power rectified by the rectifier; a resistance and a connection switch provided in a pair of power lines for transmitting the electric power from the power reception coil through the rectifier to the load, the resistance and the connection switch being connected in series between the pair of power lines; and a control device. The control device renders the connection switch conductive when determining where the power reception coil is positioned, and renders the connection switch nonconductive when the electric power is transmitted to the load from the power reception coil through the rectifier.
47 Citations
18 Claims
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1. A non-contact power receiving apparatus receiving electric power from a power transmission coil for transmitting the electric power received from a power supply, said non-contact power receiving apparatus comprising:
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a power reception coil configured to receive, by non-contact power feeding, the electric power transmitted from said power transmission coil; a rectifier configured to rectify the electric power received by said power reception coil; a load disposed to receive the electric power rectified by said rectifier; a resistance and a connection switch provided in a pair of power lines comprising a first power line and a second power line for transmitting the electric power from said power reception coil to said load, wherein the first power line comprises a first node, wherein the second power line comprises a second node, and wherein said resistance and said connection switch is connected in series between said pair of power lines such that the resistance and a connection switch form a circuit formed in series in between the first and second nodes; and a control device for controlling said connection switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A non-contact power receiving apparatus receiving electric power from a power transmission coil for transmitting the electric power received from a power supply, said non-contact power receiving apparatus comprising:
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a power reception coil configured to receive, by non-contact power feeding, the electric power transmitted from said power transmission coil; a rectifier configured to rectify the electric power received by said power reception coil; a load disposed to receive the electric power rectified by said rectifier; a resistance and a connection switch provided in a pair of power lines for transmitting the electric power from said power reception coil to said load, said resistance and said connection switch being connected in series between said pair of power lines; a voltage sensor for alternating-current peak detection for detecting a voltage arising across said resistance; and a control device for controlling said connection switch, wherein said control device determines where said power reception coil is positioned based on a detection result of said voltage sensor.
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17. A non-contact power receiving apparatus receiving electric power from a power transmission coil for transmitting the electric power received from a power supply, said non-contact power receiving apparatus comprising:
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a power reception coil configured to receive, by non-contact power feeding, the electric power transmitted from said power transmission coil; a rectifier configured to rectify the electric power received by said power reception coil; a load disposed to receive the electric power rectified by said rectifier; a resistance and a connection switch provided in a pair of power lines comprising a first power line and a second power line for transmitting the electric power from said power reception coil to said load, wherein the first power line comprises a first node, wherein the second power line comprises a second node, and wherein said resistance and said connection switch is connected in series between said pair of power lines such that the resistance and a connection switch form a circuit formed in series in between the first and second nodes; a voltage sensor for alternating-current peak detection for detecting a voltage arising across said resistance; and a control device for controlling said connection switch to determine whether said power reception coil is positioned with respect to said power transmission coil such that said power reception coil can receive the electric power. - View Dependent Claims (18)
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Specification