Simulating ESD Effects on PCB Signals

Case study of ESD simulation using Sigrity Speed2000: workflow, IEC-61000-4-2 ESD gun model, effects of decoupling capacitors and TVS on signal integrity.

EMC Suppression Techniques for Brushed DC Motors

Analysis of radiated emission sources in brushed DC motor design and practical EMC mitigation, covering common-mode and differential-mode filtering (chokes, BDL, ferrites).

EM Interference: Common-Mode vs Differential-Mode

Technical overview of electromagnetic noise covering conducted vs radiated noise, measurement units, coupling mechanisms and common-mode suppression techniques.

Ripple and Noise in Switching Power Supplies

Technical guide to ripple and noise in switching power supplies: causes, oscilloscope measurement methods and standards, test fixtures, and mitigation techniques.

Basic Power Supply Filter Design

Overview of filters: definitions, frequency and loss classifications, Butterworth/Chebyshev/Bessel designs, and key parameters like insertion loss.

The Story Behind the Discovery of Electromagnetic Waves

Chronicles Hertz's 1888 detection of electromagnetic waves and Marconi's development of wireless telegraphy, from laboratory measurements and demonstrations to transatlantic radio.

Lightning Surge Test System Components and Operation

Overview of surge test system design per GB/T 17626.5-2019, covering combined wave generator operation (1.2/50us-8/20us), calibration and standardized test procedures.

EMC Testing Methods for Energy Storage Systems

EMC testing requirements for energy storage systems, summarizing IEC 61000 radiated and conducted immunity tests (IEC 61000?4?3, -4?6, -4?16).

What is EMI Shielding Film and How It Works

Overview of EMI shielding film market, applications and industry chain: role in FPCs, drivers including FPC growth, China capacity shift, and 5G deployment.

Crosstalk in EMI: Description

Technical overview of PCB crosstalk: capacitive and inductive coupling, forward/backward effects, impact on signals, and PCB layout recommendations to reduce EMI.