壓降型pwm外文翻譯--基于降壓型pwm開關(guān)電源的建模、仿真和減少傳導(dǎo)電磁干擾(已修改)
2025-06-01 15:10 本頁面
【正文】 中文 1790字 Modeling, Simulation, and Reduction of Conducted Electromagic Interference Due to a PWM Buck Type Switching Power Supply I 基于降壓型 PWM 開關(guān)電源的建模、仿真和減少傳導(dǎo)電磁干擾 I I. INTRODUCTION FAST semiconductors make it possible to have high speed and high frequency switching in power electronics ??1 . High speed switching causes weight and volume reduction of equipment, but some unwanted effects such as radio frequency interference appeared ??2 . Compliance with electromagic patibility (EMC) regulations is necessary for producers to present their products to the markets. It is important to take EMC aspects already in design phase ??3 . Modeling and simulation is the most effective tool to analyze EMC consideration before developing the products. A lot of the previous studies concerned the low frequency analysis of power electronics ponents ??4 ??5 . Different types of power electronics converters are capable to be considered as source of EMI. They could propagate the EMI in both radiated and conducted forms. Line Impedance Stabilization Network (LISN) is required for measurement and calculation of conducted interference level ??6 . Interference spectrum at the output of LISN is introduced as the EMC evaluation criterion ??7 ??8 . National or international regulations are the references for the evaluation of equipment in point of view of EMC ??7 ??8 . II. SOURCE, PATH AND VICTIM OF EMI Undesired voltage or current is called interference and their cause is called interference source. In this paper a highspeed switching power supply is the source of interference. Interference propagated by radiation in ar
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