Implementation and Study of Sepic Converter with Coupled Inductor

• Main Authors: Shi-Yi Lin, 林仕鎰
• Other Authors: Yi-Nung Chung
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/18210888448821522020

碩士 === 國立彰化師範大學 === 電機工程學系 === 101 === A sepic converter with coupled inductor is studied and implemented in this thesis. Buck-boost converter is widely used in many step-up/down applications to regulate output voltage. Because of the common ground and small ripple current of the input and output voltage, sepic converter is being substituted for buck-boost converter. However, the two inductors are needed, the circuit complexity and non-cost-effective are became more serious for sepic converter. In this thesis, a coupled inductor is adopted to integrate the two inductors of the sepic converter. Therefore, the cost of the inductor is reduced. The circuit operation principle of the sepic converter with coupled inductor is presented in detail. Also, the simulated and experimental results are used to demonstrate the performances of the coupled inductor sepic converter.