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In conformity with the IEC61000-4-2 standard, we conducted a case study of electrostatic discharge (ESD) tests for a small-type control board to investigate the basic coupling characteristics of induced noises by indirect ESDs. With a vertical coupling metal plane (VCP) and a horizontal coupling metal plane (HCP), the test was conducted under ±4kV and ± 8kV charging voltages. Pulse width modulation...
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