Browsing by Author "Ali, Majid"

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    Design and implementation of digital controllers for buck converter using linear and nonlinear control methods
    (Department of Electrical and Electronic Engineering, Islamic University of Technology (IUT), Board Bazar, Gazipur-1704, Bangladesh, 2012-11-15) Ali, Majid; Khan, Safiullah; Waleed, Muhamad
    DC-DC power converters play an important role in powering telecom and computing systems. With the speed improvement and cost reduction of digital control, digital controller is becoming a trend for DC-DC converters in addition to existed digital monitoring and management technology. In this thesis, digital control is investigated for DC-DC converters applications. To deeply understand the whole control systems, DC-DC converter models are investigated based on averaged state-space modeling. Considering Buck DC-DC converter, the thesis takes it as an example for digital control modeling and implementation. In Chapter 3, unified steady-state DC models and small-signal models are developed for DC-DC buck converters. Based on the models, digital controller design is implemented. In Chapter 4, digital modeling platforms are established based on Matlab, Digital PID design and corresponding simulation results are provided. Also some critical issues and practical requirements are discussed. In Chapter 6, a DSP-based digital controller is implemented with the TI‘s DSP chip TMS320F2812. Related implementation methods and technologies are discussed.