Power supply and power system

Abstract

A power supply according to the present disclosure includes: a step-down circuit which has at least one pair of positive/negative step-down switching elements; at least one pair of positive/negative inductors to which voltage is applied via the step-down switching element, and one pair of positive/negative output capacitors which are connected in series and charged by electrical current passing through the inductor, and steps down input voltage and then outputs; an inverse-conversion circuit which has a plurality of inverse-conversion switching elements, and inverse-converts output voltage of the step-down circuit into alternating current; and a control circuit which controls switching of the plurality of step-down switching elements so that the output voltage of the step-down circuit becomes a desired voltage.

Dependencies are inferred from the claim text.