Electric circuit for converting direct current (DC) voltage into alternating current (AC) voltage, has converter placed between voltage terminals, and series circuit that is formed on DC voltage side based on number of converters

摘要

The electric circuit (10) has two DC-voltage terminals (12,13) and the AC voltage terminal (35). The switched power converter is placed between the DC-voltage terminals and the AC voltage terminal. The series circuits (S1,S2) are formed on DC voltage side based on number of switched power converters. The intermediate circuit capacitors of the switched power converter are connected in series.