Abstract
Power Factor Corrections (PFC) are widely used in ac to dc power supplies. Modeling the PFC circuits and predicting the conducted emission (CE) are important in power supply designs. This paper introduces a transient model of a critical conduction mode (CRM) power factor correction. The control circuit of the PFC is built to achieve a CRM working condition with a constant on-time switching. The simulated time domain noise waveform is converted to the conducted EMI in frequency domain via short-time fast Fourier transform (STFFT). The simulated conducted EMI is compared to measured results below 1MHz.
Recommended Citation
H. Kim et al., "Predicting the Conducted Emission of a CRM PFC Below 1MHz by Transient Modeling," 2020 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2020, pp. 494 - 497, article no. 9191520, Institute of Electrical and Electronics Engineers, Jul 2020.
The definitive version is available at https://doi.org/10.1109/EMCSI38923.2020.9191520
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
conducted emissions (CE); electromagnetic interference (EMI); power factor correction (PFC)
International Standard Book Number (ISBN)
978-172817430-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jul 2020
Comments
National Science Foundation, Grant 1916535