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Effects of Quantization on Digital Buck Converter Switch Mode Power Supply

Mark Lorenze Torregoza1, Elmer R. Magsino1, and Jessica C. Cabiles-Magsino2
1.Electronics and Communications Engineering Department, Gokongwei College of Engineering, De La Salle University-Manila, Taft Avenue, Philippines
2.Electrical and Electronics Engineering Institute, University of the Philippines–Diliman, Philippines
Abstract—The development of power supplies has evolved from using linear or series regulator to switch mode power supplies (SMPS). Nowadays, SMPS have employed the use of digital controllers such as microcontrollers and digital signal processors (DSP’s) to provide compensation, housekeeping, fan control, communication, etc. The main advantages of using a digital controller are: insensitivity to environment and component tolerances, repeatability, predictability, flexibility and size reduction of power supply units (PSUs). These are very much appealing to the designer’s viewpoint; however, these come with disadvantages such as limitation in bandwidth due to sampling rate, peripheral’s speed and high prototyping cost. In this paper, we observe one of the existing problems revolving around the use of digital controllers in SMPS, i.e. quantization.

Index Terms—quantization effects, buck converter, digital signal processors

Cite: Dawid Janas and Krzysztof K. Koziol, "Improved Performance of Ultra-Fast Carbon Nanotube Film Heaters," Jounal of Automation and Control Engineering, Vol. 2, No. 2, pp. 154-159 June, 2014. doi: 10.12720/joace.2.2.154-159
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