Suppression of EMI radiation noise by inductor current recoil on boost PFC. Issue 16 (10th January 2019)

• Record Type: Journal Article
• Authors: Shen, Zhou; Zhao, Yang; Yan, Wei; Yu, Jin; Zhou, Mengxia; Chen, Tao; Zhu, Jiaming
• Is Part Of: Journal of engineering. Volume 2019:Issue 16(2019)
• Page Start: 1991
• Page End: 1997
• Publication Date: 2019-01-10
• Subjects: inductors -- switching convertors -- power factor correction -- electromagnetic interference; power factor correction -- electronic devices -- electromagnetic interference noise -- electromagnetic environment -- radiation EMI model -- high‐frequency noise current -- EMI radiation noise suppression technology -- transient current change rate -- radiation EMI noise -- EMI standardisation -- electric field radiation -- boost inductor current recoil method -- magnetic field radiation noise -- boost PFC circuit -- boost PFC hardware circuit -- loss 20.0 dB -- frequency 100.0 kHz to 5.0 MHz; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.8894
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : As the development of switching power and power factor correction (PFC) technology in electronic devices, there is strong transient current rate and electromagnetic interference (EMI) noise caused by switching power supply MOSFET, IGBT, and other semiconductor, which can seriously affect the normal operation of electronic devices and the electromagnetic environment. This paper established a radiation EMI model of Boost PFC circuit under critical conduction mode (CRM); extracted the high‐frequency noise current caused by Boost PFC switching device; proposed EMI radiation noise suppression technology by inductor current recoil; discussed the influence of the boost inductor and the parasitic capacitance, the transient current change rate, and the radiation EMI noise; built a Boost PFC hardware circuit; examined on EMI standardisation based on RE 101 (magnetic field radiation) and RE 102 (electric field radiation). It is proved that the boost inductor current recoil method can effectively suppress the radiation EMI noise of the Boost PFC circuit under CRM. Results show that the magnetic field radiation noise can be reduced to 2 dBpT in frequency 25 Hz–100 kHz, the radiation noise can be reduced to 20 dB V/m in frequency 100 kHz–5 MHz.