具有同相和反相降压-升压操作的高效三电平AC-AC变换器

In this article, a new coupled-inductors based three-level bipolar buck–boost ac–ac converter is proposed. The proposed converter can produce highly efficient and symmetric in-phase and antiphase buck and boost modes of operation with much lower component voltage and current stresses. This reduces the operation and design complexity, and helps to achieve a high-efficiency operation. The high-frequ...