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Specialized Digital Signal Processor for control of multi-rail/multi-phase high switching frequency power converters

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3 Author(s)
Mooney, J. ; Dept. of Electron. & Comput. Eng., Univ. of Limerick, Limerick, Ireland ; Halton, M. ; Mahdi, A.E.

This paper describes a Digital Signal Processor (DSP) whose architecture has been purposely developed for executing power converter control algorithms. It is intended for use in the control of multi-phase or multi-rail switching power converters. The DSP's novel dual multiplier-accumulator datapath allows multiple operations to be executed in a single clock cycle, thus shortening required execution times of power control algorithms compared with standard low-end DSPs. The processor has been designed using the Verilog Hardware Description Language (HDL), implemented on an FPGA development board and tested in a closed-loop system controlling three independent 500 kHz synchronous buck converters.

Published in:

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Date of Conference:

21-25 Feb. 2010