Over the last decades, significant advances in power semiconductor device technologies and low-cost/high-speed control processors along with demands of industries have reached beyond standard ac/ac power converters with voltage-source inverters fed from diode rectifiers. Power electronics converters have been matured to stages toward improving utility interface, compact physical realization, and increased high-power handling capability. This book addresses ac/ac power converters with specific superiorities: converter type utility interface to obtain unity power factor, a matrix converter to realize compact size converter, and a current-fed converter with high-power handling capability. Based on the converter structures, this book provides new converter topologies and control algorithms to enhance their performance and provide solutions to conventional ones’ drawbacks. The designs and operational principles in this book should be useful to professionals in power electronics and motor drive fields, or anyone else who might be considering application of power electronics circuits to diverse application areas.

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