Wireless power transmitter apparatus having power transmitter apparatus and power reception apparatus supplied with electric power energy via space

A power reception apparatus configure to receive an alternating-current voltage transmitted wirelessly from a power transmitter apparatus comprising a switching circuit operative to supply a power transmitter apparatus resonance coil with the alternating-current voltage, the power reception apparatus comprising:

• a power reception apparatus resonance coil, to which the alternating-current is transmitted from the power transmitter apparatus resonance coil by electromagnetically coupling the power transmitter apparatus resonance coil with the power reception apparatus resonance coil,
• a rectifier circuit operative to convert the alternating-current voltage transmitted by the power reception apparatus resonance coil to a direct-current,
• a real load supplied with the direct-current voltage from the rectifier circuit,
• a voltage adjustment load having an impedance larger than that of the real load and connected in parallel to the rectifier circuit between the rectifier and the real load,
• a real load connector switch that switches conduction and non-conduction of electric connection between the rectifier circuit and the real load,
• a detector circuit operative to measure the direct-current voltage applied to the voltage adjustment load,
• a power reception controller that controls the real load connector switch that switches over between connection and non-connection of the electric connection between the rectifier circuit and the real load,
• wherein the power reception controller makes the electric connection between the rectifier circuit and the real load non-conductive by using the real load connector switch before startup of the power transmitter apparatus,
• wherein, when the power transmitter apparatus is started up, the power reception controller keeps the non-conductive by using the real load connector switch and supplies the rectifier circuit with the alternating-current voltage transmitted from the power transmitter apparatus, converts a supplied alternating-current voltage to a direct-current voltage by using the rectifier circuit, and supplies the voltage adjustment load with the direct-current voltage, and raises the direct-current voltage until the direct-current voltage applied to the voltage adjustment load measured by the detector circuit reaches within a range of defined voltage,
• wherein, when the measured direct-current voltage reaches within the range of the defined voltage, the power reception controller switches over from the non-conductive to the conductive the electric connection between the rectifier circuit and the real load by using the real load connector switch, and supplies the real load with the direct-current voltage.

A wireless power transmitter apparatus comprising a power transmission apparatus;

• and a power reception apparatus,
• wherein the power reception apparatus receives an alternating-current voltage transmitted wirelessly from a power transmitter apparatus comprising a switching circuit operative to supply a power transmitter apparatus resonance coil with the alternating-current voltage, the power reception apparatus comprising:
• a power reception apparatus resonance coil, to which the alternating-current is transmitted from the power transmitter apparatus resonance coil by electromagnetically coupling the power transmitter apparatus resonance coil with the power reception apparatus resonance coil,
• a rectifier circuit operative to convert the alternating-current voltage transmitted by the power reception apparatus resonance coil to a direct-current,
• a real load supplied with the direct-current voltage from the rectifier circuit,
• a voltage adjustment load having an impedance larger than that of the real load and connected in parallel to the rectifier circuit between the rectifier and the real load,
• a real load connector switch that switches conduction and non-conduction of electric connection between the rectifier circuit and the real load,
• a detector circuit operative to measure the direct-current voltage applied to the voltage adjustment load,
• a power reception controller that controls the real load connector switch that switches over between connection and non-connection of the electric connection between the rectifier circuit and the real load,
• wherein the power reception controller makes the electric connection between the rectifier circuit and the real load non-conductive by using the real load connector switch before startup of the power transmitter apparatus,
• wherein, when the power transmitter apparatus is started up, the power reception controller keeps the non-conductive by using the real load connector switch and supplies the rectifier circuit with the alternating-current voltage transmitted from the power transmitter apparatus, converts a supplied alternating-current voltage to a direct-current voltage by using the rectifier circuit, and supplies the voltage adjustment load with the direct-current voltage, and raises the direct-current voltage until the direct-current voltage applied to the voltage adjustment load measured by the detector circuit reaches within a range of defined voltage,
• wherein, when the measured direct-current voltage reaches within the range of the defined voltage, the power reception controller switches over from the non-conductive to the conductive the electric connection between the rectifier circuit and the real load by using the real load connector switch, and supplies the real load with the direct-current voltage.