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-wenkub
2023-05-19 15:10:01 本頁面
【正文】 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 area around of an interference source or by conduction through mon cabling or wiring connections. In this study conducted emission is considered only. Equipment such as puters, receivers, amplifiers, industrial controllers, etc that are exposed to interference corruption are called victims. The mon connections of elements, source lines and cabling provide paths for conducted noise or interference. Electromagic conducted interference has two ponents as differential mode and mon mode ??9 . A. Differential mode conducted interference This mode is related to the noise that is imposed between different lines of a test circuit by a noise source. Related current path is shown in Fig. 1 ??9 . The interference source, path impedances, differential mode current and load impedance are also shown in Fig. 1. B. Common mode conducted interference Common mode noise or interference could appear and impose between the lines, cables or connections and mon ground. Any leakage current between load and mon ground could be modeled by interference voltage source. Fig. 2 demonstrates the mon mode interferenc
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