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Harmonic standards such as IEEE 519 have prompted the adoption of active rectifiers or the use of multiple pulse rectifiers for three phase AC-DC conversion system in variable speed drives and other applications. Although active rectifiers are capable of excellent line current waveforms and DC bus regulation, they do result in increased EMI at the input terminals. On the other hand, passive filters...
Conducted electromagnetic interference resulting from common mode noise currents are a significant problem with switching power converters. Such noise current arises as result of the broadband nature of the switching waveforms that are coupled into the ground through parasitic capacitive paths. It is common to employ passive LC-filters to mitigate common mode noise keeping the noise levels below applicable...
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