| Summary: | 碩士 === 國立虎尾科技大學 === 航空與電子科技研究所 === 102 === This thesis presents the design and implementation of a buck-boost cascaded converter with wide output voltage range to reach power factor correction. The buck mode of the proposed buck-boost converter is selected when the input rectifier voltage is higher than the output voltage. Similarly, the boost mode of the one is selected when the input rectifier voltage is lower than output voltage. In the proposed, the Renesas micro-controller is used and implemented with predictive pulse width modulation control, this method can improve the performance of the PF and THD. Finally, a 1kW buck-boost cascaded converter is proposed to reach high power factor, reduce the harmonic distortion of the input current, and improve the system efficiency.
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