2002 · 10 citations · 4 references
EngineeringComputer EngineeringElectrical EngineeringDesign AutomationField-programmable Gate ArraysSystem-on-chip DesignConverter TopologiesDc-dc ConversionDc-dc ConvertersField-programmable Gate Array ArchitectureFpga ArchitectureFuzzy LogicBoolean EquationsBuck ConvertersBuck-boost ConvertersFuzzy ControlFuzzy Control SystemsFuzzy Inference SystemsFuzzy Rule-based SystemsVlsi Implementation
An intelligent fuzzy logic inference pipeline for the control of a DC-DC buck-boost converter was designed and built using a semi-custom VLSI chip. The fuzzy linguistics describing the switching topologies of the converter was mapped into a look-up table that was synthesized into a set of Boolean equations. A VLSI chip-a field programmable gate array (FPGA)-was used to implement the Boolean equations. Features include the size of RAM chip independent of number of rules in the knowledge base, on-chip fuzzification and defuzzification, faster response with speeds over giga fuzzy logic inferences per sec (FLIPS), and an inexpensive VLSI chip.
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