DSP-Based Digital Controller for Multi-Phase Synchronous Buck Converters

Jung-Hoon Kim; Jeong-Gyu Lim; Se-Kyo Chung; Yu-Jin Song

DSP-Based Digital Controller for Multi-Phase Synchronous Buck Converters

Vol. 9, No. 3, pp. 410-417, May 2009

10.6113/JPE.2009.9.3.410

Synchronous buck converter

Voltage regulation module

digital controller

Parallel operation

Digital signal processor

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Abstract

This paper represents a design and implementation of a digital controller for a multi-phase synchronous buck converter (SBC) using a digital signal processor (DSP). The multi-phase SBC has generally been used for a voltage regulation module (VRM) of a microprocessor because of its high current handling capability at a low output voltage. The VRM requires high control performance of tight output regulation, high slew rate, and load sharing capability of multiple converters. In order to achieve these requirements, the design and implementation of a digital control system for a multi-phase SBC are presented in this paper. The digital PWM generation, current sensing, and voltage and current controller using a DSP TMS320F2812 are

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Cite this article

[IEEE Style]

J. Kim, J. Lim, S. Chung, Y. Song, "DSP-Based Digital Controller for Multi-Phase Synchronous Buck Converters," Journal of Power Electronics, vol. 9, no. 3, pp. 410-417, 2009. DOI: 10.6113/JPE.2009.9.3.410.

[ACM Style]

Jung-Hoon Kim, Jeong-Gyu Lim, Se-Kyo Chung, and Yu-Jin Song. 2009. DSP-Based Digital Controller for Multi-Phase Synchronous Buck Converters. Journal of Power Electronics, 9, 3, (2009), 410-417. DOI: 10.6113/JPE.2009.9.3.410.