EMI, EMS, and EMC: Key Differences

Summary of EMI and EMC: definitions, principles, radiated vs conducted interference, immunity strategies, shielding, filtering, and EMC testing.

EMC ESD Models Explained

Technical overview of ESD models and measurement methods, focusing on HBM parameter measurement, capacitance estimation and robustness testing for electronic devices.

10m, 5m and 3m Semi-Anechoic Chamber Specs

Technical specifications for 3 m, 5 m and 10 m semi-anechoic chambers: shielding structure, absorbers, NSA, sVSWR, quiet zone dimensions and radiated immunity/emission compliance

Common ESD Protection Devices and Principles

Overview of ESD protection devices (diode, MOS/BJT, resistor, SCR), their avalanche/snapback mechanisms, trigger/hold voltages, and comparative per-area robustness.

LDMOS Design Considerations for ESD Protection

Technical overview of LDMOS application in high-voltage ESD protection, covering GGNLDMOS design, RESURF, field plates, super junction and layout/structure trade-offs

EMI Mitigation for Buck Converter Topology

Analysis of electromagnetic interference in switching power supplies and practical mitigation: shorten switching loop, lower di/dt, ferrite beads, RC snubbers, common-mode choke.

Transformer Inter-Winding Shield Impact on SMPS EMI

How a shielded transformer suppresses EMI: an inter-winding shield tied to primary ground blocks distributed-capacitance coupling, reducing conducted and radiated emissions.

EMC Fixes for Massage Chair Display Upgrade

EMC case study: reducing clock-related emissions after adding a display using a spread-spectrum IC, capacitive and RC filtering, and improved grounding of the ribbon cable.

What Is EMI? Power Supply EMI Solutions

Summarizes EMI sources in switching power supplies and mitigation—layout, loop reduction, package techniques—and how low-noise μModule regulators simplify PCB design.

Legendre Filter Synthesis and Design Details

Derivation of Legendre filter synthesis from monotone minimum-attenuation constraints, with MATLAB design tool, coefficient generation and LP/BP examples.