![]() This tool was developed in order to run in a Personal Computer and can simulate the entire EMI spectrum. #Emi Filter Design Software fullIn this work a full simulation tool is presented. A very good method for this simulation was presented by Albach. The curves are made taking into account a simulation of the measuring apparatus in accordance with CISPR 16. In that work the authors only present the first harmonic. Which it was based, in a group of curves as you can see in figure 1, that allow us to determine the amplitude of the conducted EMI Differential Mode (DM) (first harmonic) in dB/µV in accordance with the International Special Committee on Radio Interference publication 16 (CISPR 16) standard, for (Cuk, Buck, Boost, Buck-Boost, Sepic and Zeta) converters working as PFP, in all operates modes Continuous Conduction Mode (CCM), Discontinuous Conduction Mode (DCM) and Frequency Modulation (FM) as proposed by Albach. A method for determination of PFP conducted Electromagnetic Interference (EMI) emission was presented by Dos Reis et al. All these facts demonstrate the importance of the EMI analysis of power converters working as Power Factor Preregulator (PFP). These regulations also limit the minimum power factor for the equipment connected to the AC line. This is because the converters need to fulfil the international standards for EMI of current and future regulation limits of conducted and radiated noise generation. The influence of the EMI injected into the AC line by the power converters working as Power Factor Preregulators (PFP) in the electronic design is becoming more and more important. These fees fade into insignificance when compared with the impact of the resulting delay on product time to market. Keeping this in mind, is important to minimize the EMI failures in the design time, because the real cost of EMI compliance failing is not the charge made to EMC credential laboratories for testing and re-testing, that can be expensive, with Test House fees up to U$ 1,500.00 per day. ![]() INTRODUCTION A crucial task in the recent years has been the reduction of the product development time, because the product lifetime has become shorter quickly. Therefore, this can be an useful aid for power electronics designers. An EMI filter design methodology that allow us to accommodate the conducted Electromagnetic Interference (EMI) generated by power factor correctors to international standards in the design step is also presented. Using this Software, we can determine full EMI spectrum in dB/µV in accordance with the CISPR 16 standard. Dos Reis Pontifícia Universidade Católica do Rio Grande do Sul Faculdade de Engenharia Departamento de Engenharia Elétrica Avenida Ipiranga, 6681 - Porto Alegre – RS CEP 90619-900 - Brasil Abstract - In this paper a simulation tool that allows us to determine the conducted Electromagnetic Interference (EMI), generated for the basic PFP converters (Cuk, Buck, Boost, Buck-Boost, Sepic, and Zeta converters) will be presented. Tool for Conducted EMI and Filter Design Elio Freitas Magnus, Júlio C. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |