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KMID : 0896219990190010175
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Journal of Daegu Health College
1999 Volume.19 No. 1 p.175 ~ p.187
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Single Phase Multi-Level AC-DC Converter
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Chun Jung-Ham
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Abstract
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Single-phase multi-level AC-DC converter that is composed of diode bridge and switch is proposed. 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, where M is the number of Switching Converter. 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 generating high voltage step changes as pulse with modulation technology. The technique illustrates its validity and effectiveness through the PSIM.
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