components

The fundamental circuit background is presented and illustrated by the resonance phenomenon in the non-ideal models of passive circuit components: capacitors, ferrite beads, resistors, and inductors.

This article analyzes the V-I characteristic of a varistor and shows it is more appropriate to treat the varistor as a current dependent resistance rather than the conventionally taught voltage dependent resistance. Spice circuit examples are given, based on a current dependent resistance varistor model.

Assessing the liability between the raw material suppliers, component suppliers, finished product manufacturers, installers, and maintenance personnel is a very difficult legal proposition.

This article describes the MOV circuit design sequence for the AC mains port overvoltage protection of pluggable type A equipment.

Resonances in components are a well-known topic for electronic designers when working in high frequencies (e.g. EMI/EMC). Do not forget to test your components with an impedance analyzer, especially if they are custom magnetic components.

Over the past 5 or 6 years, industry and university researchers have advanced the state of the art in system-level ESD simulation, and this article provided an overview of some of those activities.

Usually HF filters are designed using inductors with cores. In this way a medium/high inductance value is obtained in small size components. But using cores has a limitation.

High-quality inductors and capacitors can create dangerous resonant circuits, generating voltage peaks up to Q times the input voltage. This underdamped behavior causes EMI issues, component damage, and circuit malfunctions. Strategic damping with resistors or ferrites provides effective solutions for power integrity problems.

EMI filter design hinges on critical component placement. Learn how strategic orientation of capacitors and inductors can transform electromagnetic interference performance, potentially solving compliance issues with existing components and minimal design changes.

Take time to check for EMI, efficiency, temperature, safety, immunity, or any other requirement in your product.