INVERTER FOR DEVELOPING THREE LEVEL VOLTAGE

摘要

PURPOSE: An inverter for generating a three-level voltage is provided to simplify a circuit configuration by reducing the number of diodes and switching devices using a bidirectional switch device. CONSTITUTION: A division unit(10) divides input DC power into three voltage levels and is comprised of two same capacitors. A switching device(20) is connected to each node of the division unit with three voltage levels. A bidirectional switching device(30) is connected between an AC voltage output terminal(40) and a middle voltage level node among three voltage levels.