| Summary: | 碩士 === 南台科技大學 === 電機工程系 === 98 === An interleaved boost converter with high power factor, low harmonics distortion, high efficiency and high power density has been presented in this thesis. Boost converter is the most common pre-regulator architecture and an interleaved boost structure can be used to reduce the pre-regulator input and output ripple current, furthermore, to reduce the values of inductor and capacitor required to bear the stress of the circuit. The thesis focuses on this type of architecture along with the UCC28070 control chip produced by T.I., which adopts the fixed frequency average current model method and is operated in continuous current mode to increase output power and power density. Finally, an prototype based on the UCC28070 controller has been set up and experimental results show that the interleaved control can reduce the current ripple, and suitable for the application of pre-regulator.
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