Design and Implementation of Digital Controller with Two-Degree-of-Freedom Control for DC/DC Buck Converter

• Main Authors: Chun-Ting kuo, 郭俊廷
• Other Authors: 賴炎生
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/wbmrgh

碩士 === 國立臺北科技大學 === 電機工程系研究所 === 96 === 　　The objective of this thesis is to design and　implement the two-degree-of-freedom digital controller for buck converter. Therefore, the converter provides satisfied tracking and load regulation performance. The controller is designed and implemented for the buck converter under voltage mode control, average current mode control and peak current mode control. 　　The mathematic models of the buck converter under voltage mode control, average current mode control and peak current mode control are derived in order to design the related controllers. Moreover, two-degree-of-freedom controllers are designed and verified by simulation and experimental results. The specifications of the designed and implemented buck converter include: input voltage = 12 V, output voltage = 3.3 V and output current = 20 A. Experimental results derived from the DSP-based system demonstrate that the buck converter based upon the designed two-degree-of-freedom digital controller provides satisfied tracking and load regulation performance.