POWER SUPPLY DEVICE AND POWER SUPPLY METHOD

摘要

When amplifying an RF signal for power supply or a pulse signal for data transmission, amplification is performed so that the peak power of the RF signal is greater than the peak power of the pulse signal. Thus, it is possible to charge a capacitor (23) of a non-contact type radio communication device (2) by transmitting the RF signal having a large peak power even when the distance to the non-contact type radio communication device (2) is large.