Radio Power Transmission Apparatus and Radio Power Transmission System
First Claim
1. A radio power transmission apparatus comprising:
- a transmitter having a power transmitting antenna for transmitting electromagnetic waves and a power transmitting circuit; and
a receiver having a power receiving antenna for receiving electromagnetic waves and a power receiving circuit, wherein;
on the basis of power reflected to the power transmitting antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit in order to control the imaginary part of power of the electromagnetic waves to be transmitted; and
on the basis of a value of power transmitted to the transmitter by using electromagnetic waves of power transmission used by the receiver to transmit a value of power received by the receiver through the power receiving antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit or the characteristic impedance of the power transmitting circuit in order to control the real part of power of the electromagnetic waves to be transmitted.
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Accused Products
Abstract
A radio power transmission apparatus comprises a transmitter 20 having a power transmitting antenna 9 for transmitting electromagnetic waves and a power transmitting circuit and a receiver 40 having a power receiving antenna 29 for receiving electromagnetic waves and a power receiving circuit. In the radio power transmission apparatus, on the basis of power reflected to the power transmitting antenna 9, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit in order to control the imaginary part of power of the electromagnetic waves to be transmitted. In addition, on the basis of a value of power transmitted to the transmitter 20 by using electromagnetic waves of power transmission used by the receiver 40 to transmit a value of power received by the receiver 40 through the power receiving antenna 29, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit or the characteristic impedance of the power transmitting circuit in order to control the real part of power of the electromagnetic waves to be transmitted.
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Citations
19 Claims
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1. A radio power transmission apparatus comprising:
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a transmitter having a power transmitting antenna for transmitting electromagnetic waves and a power transmitting circuit; and a receiver having a power receiving antenna for receiving electromagnetic waves and a power receiving circuit, wherein; on the basis of power reflected to the power transmitting antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit in order to control the imaginary part of power of the electromagnetic waves to be transmitted; and on the basis of a value of power transmitted to the transmitter by using electromagnetic waves of power transmission used by the receiver to transmit a value of power received by the receiver through the power receiving antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit or the characteristic impedance of the power transmitting circuit in order to control the real part of power of the electromagnetic waves to be transmitted. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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3. A radio power transmission apparatus comprising:
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a transmitter having a power transmitting antenna for transmitting electromagnetic waves and a power transmitting circuit; a transceiver having a power transmitting/receiving antenna for transmitting and receiving electromagnetic waves and a power transmitting/receiving circuit; a rectification circuit; an inverter circuit; and a power accumulation battery, wherein; on the basis of power reflected to the power transmitting antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit in order to control the imaginary part of power of the electromagnetic waves to be transmitted; and on the basis of a value of power transmitted to the transmitter by using electromagnetic waves of power transmission used by the transceiver to transmit a value of power received by the transceiver from the power transmitting/receiving antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit or the characteristic impedance of the power transmitting circuit in order to control the real part of power of the electromagnetic waves to be transmitted; power received by the power transmitting/receiving circuit is converted by the rectification circuit into DC power; the DC power is accumulated in the power accumulation battery; the DC power accumulated in the power accumulation battery is converted by the inverter into AC power; and the AC power is output by the power transmitting/receiving circuit to the external space through the power transmitting/receiving antenna. - View Dependent Claims (4, 16, 17, 18, 19)
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Specification