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Power factor correction (PFC) converters are commonly used at the first stage in single-phase switch-mode AC/DC power converters to improve the input current waveform distortion and achieve high efficiency in energy conversion. The operating condition of MOSFET in a PFC converter changes dynamically and periodically. This paper studies the operating condition and output load dependency of spectrum...
This paper presents the analytical equations to model the equivalent noise source for conducted EMI simulation in the frequency domain. The continuous conduction mode boost converter is modeled. By means of a test case, it is shown that the equivalent noise source provides a reasonable estimate of the switching waveform and a good estimate of the EMI noise.
The suggested requirements for radio-free pin-type, switch and bus, and suspension insulators, if acceptable, indicate and justify from a factory testing and production viewpoint, the following conclusions as regards existing standard designs: 1. For distribution voltages up to 4,400 or even 5,500 volts, the small one-piece pin-type insulators used require no ``radio-proofing'', even on solidly grounded...
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