SWITCHING POWER SUPPLY AND CHARGING APPARATUS

摘要

A switching power supply includes a DC/AC inverter, an AC/DC converter, a first capacitor that passes an alternating current outputted from the DC/AC inverter, a second capacitor that passes the alternating current, and a reactor that passes part of the alternating current. An output voltage from the AC/DC converter is adjusted by a change of the period in which the reactor passes the part of the alternating current.

主权项

1. A switching power supply comprising:
a DC/AC inverter that includes a switching circuit that converts a received direct current into an alternating current; an AC/DC converter that converts the alternating current into a direct current; a first capacitor disposed in a first current path connecting one output of the DC/AC inverter and one input of the AC/DC converter, the first capacitor passing the alternating current; a second capacitor disposed in a second current path connecting the other output of the DC/AC inverter and the other input of the AC/DC converter, the second capacitor passing the alternating current; and a reactor disposed in a third current path connecting the one input and the other input of the AC/DC converter, the reactor passing part of an alternating current outputted from the DC/AC inverter, wherein the AC/DC converter converts the alternating current, which the first capacitor and the second capacitor passed, into the direct current, and an output voltage from the AC/DC converter is adjusted by a change of the period in which the reactor passes the part of the alternating current.