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Matrix converter has low voltage transfer ratio, especially those with non-sinusoidal output. The research of matrix converters driving BLDC (brushless DC) motors with rectangular phase current is found only in one paper. But the voltage transfer ratio (UPN/2Uim, UPN is the equivalent output DC voltage, i.e. the leg-leg voltage of BLDC, and Uim is the peak input phase voltage, which is different from...