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The PFC Boost Converter is an integral part of modern power supplies to improve power factor in electronic devices. The inherent problem associated with it is common mode (CM) Electromagnetic interference (EMI) noise arising due to the higher switching transition rate (dv/dt). The main coupling path for the CM noise is provided by parasitic capacitance occurring between the switching node and ground...
This paper is about the design of an electrostatic shield in an electric machine for hybrid electric vehicles and other applications. A parasitic shaft to ground voltage is responsible for bearing currents and disturbances in the radio frequency range. Hence, a slot-embedded shield is used to mitigate the capacitive coupling of stator and rotor thereby reducing these effects. With an ideal shield...
The design of passive EMI filters demands simultaneous consideration of multiple aspects, including the manufacturing costs, especially crucial for industry applications. In this article the stray components of the filter elements, the electromagnetic couplings, the circuit layout and the magnetic materials are taken into consideration. Impact of every aspect on the insertion losses (IL) is analysed...
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