Dielectric relaxation of the ionic liquid, 1-ethyl-3-methylimidazolium ethyl sulfate (EMI+ETS-), is studied using molecular dynamics (MD) simulations. The collective dynamics of polarization arising from cations and anions are examined. Characteristics of the rovibrational and translational components of polarization dynamics are analyzed to understand their respective roles in the microwave an...

A research project has been carried out for the last five years, the subject of which is to develop effective methods to control electromagnetic noise radiation from digital electronic devices. Engineering approaches were chosen and some new modeling methods of electromagnetic phenomena around a printed circuit board are shortly described in relation to EMI subjects. Those results have been com...

In this paper the susceptibility of integrated bandgap voltage references to Electromagnetic Interference (EMI) is investigated by on-chip measurements carried out on Kuijk and Tsividis bandgap circuits. These measurements highlight the offset in the reference voltage induced by continuous wave (CW) EMI and the complete failures which may be experienced by bandgap circuits. The role of the susc...

This work is focused on the susceptibility of integrated circuits (ICs) to electromagnetic interference (EMI). The main issue is simulation and measurement on device level and circuit level. The work gives an overview of the overall electromagnetic compatibility (EMC) issues, and shows Direct Power Injection (DPI) measurement technique for conducted electromagnetic interference. Related researc...

This paper deals with the simulation of a Boost Power Factor Correction (PFC) Converter with Electro Magnetic Interference (EMI) Filter. The diode rectifier with output capacitor gives poor power factor. The Boost Converter of PFC Circuit is analyzed and then simulated with diode rectifier. The Boost PFC Converter with EMI Filter is simulated for resistive load. The power factor is improved usi...

This work presents the analysis of radiated EMI problems associated with DC-DC buck converters and the solutions for minimize the reverse recovery of the Drain-Bulk diode of the synchronous switching MOSFET. The DC-DC buck converter topology is used in computers and telecom applications because of its high power efficiency and multiple DC levels. For reducing the reverse recovery and its relate...

The design of static power converters makes intervene an important number of variables as well as several different kinds of constraints. The goal of this work consists in introducing the EMI constraint at the time of the power electronic circuit’s design while leading an accurate analysis of the conducted sources of perturbations. The developed models aim to improve the realism of the power co...

ICD shocks can result from a variety of etiologies; determining the proper etiology of the inappropriate shock is essential for correction of the problem. Electromagnetic interference (EMI) can mimic cardiac signals and cause inappropriate defibrillator shocks. We present two cases of inappropriate ICD shocks due to EMI and reversal of the proximal and distal DF-1 lead terminals of the ICD lead...

This paper presents a high-frequency electronic ballast for HID lamps. A new fixed frequency dimming method with low EMI features is developed in this research. The proposed electronic ballast has the advantages of high power density, simple circuit and low EMI features. The circuit operating principle and design procedures are described in detail. A laboratory prototype was built and tested. T...

In railway applications possible interaction between power train and signalling system requires efforts to Electro Magnetic Compatibility (EMC) problems. With the progress of power device technology in recent years, it has become feasible to improve performances of power electronics systems; however EMI noise, caused by fast switching commutations in power converters, has to be managed. EMC con...