| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-contact power-feeding system of a resonant type that has high power-transmission efficiency and in which a wireless communication function is installed. <P>SOLUTION: The non-contact power-feeding system includes: a power transmission device that has a power transmission element transmitting AC power, and a first microprocessor provided between an AC power supply and the power transmission element and generating a transmission signal; and a power receiving device that has a power receiving element receiving the AC power, a rectifier circuit, a smoothing circuit, a voltage conversion circuit, a second microprocessor generating a reply signal on the basis of the transmission signal, a charge control circuit to which an output voltage from the voltage conversion circuit and the reply signal are inputted, and a power storage device in which charge is controlled by the charge control circuit. The charge control circuit switches charging speed to the power storage device on the basis of the reply signal, changes the resistance value of the power storage device, changes the impedance of the power storage device, and then generates a modulation signal. The generated modulation signal is transmitted from the power receiving device to the power transmission device and is processed by the first microprocessor. <P>COPYRIGHT: (C)2013,JPO&INPIT |
