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Application-specific instruction-set processor for control of multi-rail DC-DC converter systems
Date
2013
Abstract
Conventional digital signal processor (DSP) based digital controllers are not specifically optimized for multi-rail DC-DC converter applications. A new application-specific instruction-set processor (ASIP) that overcomes the shortcomings of existing controllers has thus been designed, implemented, and evaluated. The proposed dual multiply-accumulate (MAC) architecture has been implemented using a field programmable gate array and verified in a closed-loop power converter system. The benefits of the proposed ASIP are illustrated through a comparison with a conventional single MAC processor architecture. Experimental results demonstrate improved output voltage transient response compared with existing DSP-based controllers when controlling multiple DC-DC converters. In the case of multiple converters that have a non-integer switching frequency ratio more significant improvements in transient response are obtained due to the processor's interrupt controller.
Supervisor
Description
peer-reviewed
Publisher
IEEE Computer Society
Citation
IEEE Transactions on Circuits and Systems I: Regular Papers;60 (1), pp. 243-254
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Files
Funding code
Funding Information
Irish Research Council (IRC)
Sustainable Development Goals
External Link
Type
Article
Rights
https://creativecommons.org/licenses/by-nc-sa/1.0/