Abstract: A charging device and its charging method of self-moving type of mouse is disclosed. The method comprises the following steps: Step (a): providing a wireless mouse and a charging device, wherein the wireless mouse comprises a base, a displacement-detecting portion positioned on the base, a moving portion capable of stretching out of the base, and a transceiving portion connected to a charging battery. Step (b): Placing the wireless mouse and the charging device on a plane. Step(c): Having the displacement-detecting portion detect whether the wireless mouse is in action or not. Step (d): If the wireless mouse is in action, then, after the displacement-detecting portion acquires a displacement signal with respect to the plane, repeat Step (c); after the wireless mouse stops action for a predetermined time, let the moving portion stretch out of the base. Step (e): Having the moving portion in action, and let the wireless mouse perform a number of sets of predetermined displacement motion.

Abstract: A power supply adapter includes an input terminal to input an alternating current power supply, a converter circuit electrically connected to the input terminal to convert the alternating current power supply into multiple direct current voltage signals and multiple alternating current voltage signals, a plurality of direct current voltage output terminals electrically connected to the converter circuit, and a plurality of alternating current voltage output terminals electrically connected to the converter circuit. Thus, the power supply adapter converts the single alternating current power supply into multiple direct current voltage signals and multiple alternating current voltage signals for use with multiple loads, so that the power supply adapter is available for multiple direct current loads and multiple alternating current loads.