2013•Applied Mechanics and MaterialsOpen access

Application of EMI Filter in Design of Switching Power Supply

Pan Guo, Jian Song, Hong Zhang, Xin Li, Rui Lu

Abstract

Because of its high reliability and stable output, switching power supply is widely used in power electronic systems, but it is can not be ignored that its self-generated electromagnetic has a profound effect on the whole system. In order to suppress conducted interference generated by switching power supply, this article proposed a cascaded technology about the integrated EMI filter, and a simulation is carried out for the power converter output waveform. Experimental results show that this cascaded technology about the integrated EMI filter has a good inhibition on the harmonic.

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Available abstract

Key concepts: EMI, Electromagnetic interference, Electronic engineering, Switched-mode power supply, Power (physics), Filter (signal processing), Reliability (semiconductor), Harmonic