Abstract
This letter studies and analyzes the working features of main circuit of tri-level boost Power Factor Correct (PFC) converter and the advantages of tri-level switch converter in aspects of bearing high-voltage of power components, overall system loss and magnetic component selection based upon the single-level boost PFC switch converter. Besides, relying on the application of microprocessor in power converter technology and DSP (Digital Signal Processing) chip’s strong calculating capacity, the letter presents the adoption of modified scheme of tri-level boost PFC converter under the control of predictive control algorithm. Moreover, the operating principle and control method are specified, the results of circuit test and analysis are provided and the advantages of predictive control technology-based multi-level boost PFC converter is verified.
Published Version
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