Conducted Electromagnetic Interference Spectral Peak Mitigation in Luo-Converter Using FPGA-Based Chaotic PWM Technique
Copyright policy )Conducted Electromagnetic Interference Spectral Peak Mitigation in Luo-Converter Using FPGA-Based Chaotic PWM Technique
Chaotic switching is a newly evolve randomization method which suppress the conducted electromagnetic interference generated within the DC-DC converter. It can also suppress the spectral peaks present in the frequency band effectively by spread spectrum technique and spread it over the wide range of frequency band implying electromagnetic interference (EMI) suppression. In this article, a chaotic pulse width modulation technique based on randomized carrier frequency modulation with fixed duty ratio is generated through field programable gate array for suppressing the conducted electromagnetic interference generated within the Luo-converter. A hardware prototype of Luo-converter is developed in order to analyze EMI reduction through power spectral density analysis by comparing both traditional periodic PWM switching and chaotic PWM switching. The results obtained from the hardware setup shows significant reduction of EMI with chaotic switching as compared to traditional pulse width modulation switching under both boost and buck operation of Luo-converter.
RCFMFD, SPECTRAL energy distribution, PULSE width modulation, IMAGE encryption, PULSE width modulation transformers, chaotic PWM technique, ELECTROMAGNETIC interference, GATE array circuits, PULSE width modulation inverters, EMI, FIELD programmable gate arrays, FPGA, Luo-converter
RCFMFD, SPECTRAL energy distribution, PULSE width modulation, IMAGE encryption, PULSE width modulation transformers, chaotic PWM technique, ELECTROMAGNETIC interference, GATE array circuits, PULSE width modulation inverters, EMI, FIELD programmable gate arrays, FPGA, Luo-converter
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