e-PassiveBlog

Resistors in power and signal circuits rarely see pure DC; they are often stressed by pulses, surges and elevated temperatures...

The article explains basic definition of inductance, impedance and inductive losses. Inductors are not just abstract L symbols in schematics but real...

This article elaborates on design and calculation of basic DC/DC power converters. The post is based on Würth Elektronik‘s “DC/DC Converter Handbook”...

Magnetic-core selection determines the achievable inductance, saturation margin, power loss, thermal performance and EMI behaviour of inductors and transformers. A...

Magnetic flux density, magnetic flux and Faraday–Lenz law explain why a voltage appears across an inductor when its current changes....

The voltage coefficient of resistance (VCR) is a key non‑linearity parameter of high‑value resistors that can quietly dominate error budgets...

Inductors, transformers, ferrite beads and common-mode chokes all rely on the magnetic field produced by electric current. This knowledge article...

This article introduces some key electrical resistor parameters such as resistivity, thermal resistance and TCR temperature coefficient. Key Takeaways The...

This article provides an overview of common and less-common inductor and transformer symbols. The inductors, coils or chokes are electrical...