EMI Noise Reduction for PFC Converter with Improved Efficiency and High Frequency Clock

Autor: Jing Li, Minh Tri Tran, Haruo Kobayashi, Yifei Sun, Shotaro Sakurai, Noriyuki Oiwa, Yasunori Kobori
Rok vydání: 2018
Předmět:
Zdroj: 2018 14th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT).
Popis: This paper proposes a new Power Factor Correction (PFC) converter with Electro-Magnetic Interference (EMI) noise reduction and improved efficiency using 500kHz clock. Using Schottky Barrier Diodes (SBDs) of Silicon Carbide (SiC), the efficiency is improved with suppression of recovery currents of freewheel diodes. Thanks to this suppression, the operating clock frequency can be as high as 500kHz, which enables to use very small inductors and capacitors in the low-pass filter (LPF) located in the front-end. Also by modulating the clock frequency, the EMI noise is reduced by -18.8 dB using the triangular modulation signal with 0.75V amplitude and 500 Hz frequency.
Databáze: OpenAIRE