Fields radiated by electrostatic discharges

Wilson, Perry F.; Ma, Mengyao; Ondrejka, Arthur

doi:10.1109/isemc.1988.14109

Cited by 25 publications

(15 citation statements)

References 8 publications

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“…According to the specific ESD situation, the numerical calculation method to solve ESD electromagnetic field distribution has been paid more and more attention [7][8], such as finite difference time domain method(FDTD).Wilson [9] think that the electric spark generated by non-contact electrostatic discharge (air discharge)on an infinite grounded conductive floor, as electric small size, time-varying linear electric dipole, the discharge channel current uniform distribution, as shown in Fig.2. The electrode accumulate a large number of charge when electrostatic discharge begin, electrode discharge gradually as the discharge process, the discharge current decide the rule of time variation, through the current time integral can be approximated get electrode initial charge, then after discharge begin, electric charge on the electrode is:…”

Section: A Esd Emp Electromagnetic Field Modelmentioning

confidence: 99%

Modelling of electromagnetic field coupling from ESD EMP to PCB

et al. 2012

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Printed circuit board(PCB) designers require fast and accurate methods of simulating immunity of PCB to electrostatic discharge(ESD) events to adequately predict and analyze ESD issues. An efficient methodology for calculating the electromagnetic field coupling from ESD electromagnetic pulse(EMP) to PCB while fully considering the non-linear circuit elements in the PCB core is proposed in this paper. Voltages and currents within the PCB are found by merging full-wave simulations of ESD EMP with a SPICE model of the PCB and the coupled electromagnetic energy. This method was verified through experiments, results show the promise of the method. This hybrid modelling method can significantly accelerate simulation time compared with traditional modelling techniques and can allow the designers to explore the variation in coupling that occurs with small changes in the test setup better, such as the position and orientation of the EMP and PCB pins.

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Section: A Esd Emp Electromagnetic Field Modelmentioning

confidence: 99%

Modelling of electromagnetic field coupling from ESD EMP to PCB

et al. 2012

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“…For that reason, the ESD test is one of the standard and most severe electromagnetic compatibility (EMC) tests for electronic equipment [1]. Therefore, the ability to correctly predict, calculate, and model pulse currents and associated EM fields related to ESD is of great importance [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Model of human body for electrostatic discharge analysis based on method of moments and frequency-dependent surface resistance

Olćan

Djordjević

2013

2013 IEEE International Symposium on Electromagnetic Compatibility

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We present a model of human body for full-wave numerical analysis of contact electrostatic discharge. The model is based on frequency-dependent surface resistance distributed over the surface of the body, which models the measured parameters of human tissue. The numerical analysis is done by method of moments with surface integral-equation formulation in the frequency domain. The results for currents and fields in time domain are obtained using discrete (inverse) Fourier transform and frequency-domain data. The flexibility of the proposed model is tested and discussed by comparing the numerical results to the standard waveform of current in electrostatic discharge. The results for magnetic field, in the vicinity of the discharge, are compared to those found in the literature. The model predicts correctly both waveforms and peak values for currents and magnetic fields.

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“…Transient current inside a hard disk drive due to external ESD will damage magnetoresistive (GMR) sensors magnetically or physically [2]. Facing these problems, most reports focused on the damage mechanism of the EMI induced by transient voltage or current [3], [4] and theoretical calculation and measurement on electromagnetic field caused by ESD [5]- [7]. Few literature concerns the relationship between the transient voltage or current induced by EMI and external ESD [8].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic topology analysis on relation between electromagnetic interference inside equipment and external electrostatic discharge

Niu

Song

Geng

et al. 2008

2008 Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compati

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Simulation based on electromagnetic topology theory was applied to analyze the relationship between internal electromagnetic interference (EMI) and external electrostatic discharge (ESD) of semi-shielded electrical equipment. The topological structure model of the equipment was built to analyze the coupling paths of external disturbance. To the aperture coupling path, a new method was adopted to determine the transfer function between external disturbance and internal sensitive component, which was modeled as a wire conductor in this paper. The simulation result shows that the EMI induced by external ESD on the wire conductor depends on its length and location. The results compare well with previous reports.

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Fields radiated by electrostatic discharges

Cited by 25 publications

References 8 publications

Modelling of electromagnetic field coupling from ESD EMP to PCB

Modelling of electromagnetic field coupling from ESD EMP to PCB

Model of human body for electrostatic discharge analysis based on method of moments and frequency-dependent surface resistance

Electromagnetic topology analysis on relation between electromagnetic interference inside equipment and external electrostatic discharge

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