대용량 31 레벨 단상 AC/DC 컨버터

Single-phase multi-level AC-DC converter is proposed that is composed of diode bridge and switch. The number of the supply current level is depending on the individual current level of the converter. A converter circuit, the number of the level is equal to 2^M+1 -1 The proposed circuit has converter with 31 current levels. When the number of current level is increased, smoother sinusoidal waveform can be obtained directly and it is possible to control the supply current almost continuously from zero to maximum without step changes of generating high voltage as pulse width modulation technology. Also, filter circuit is iscity. It is illustrated technique are confirmed the validity and effectiveness through the simulation & experiments