Electromagnetic far field impedance is about 377Ω = 120π or 29,9792458 × 4 × πΩ for the vacuum velocity of light. Any electromagnetic wave far enough from its source (rule of thumb >wavelength/2 × π) ...

Power supplies are simple, right? Just figure out how much power draw all your computer parts use, get one with a few more watts, and call it a day. Wrong! In addition to creature comforts like ...

Most casual business users don't give a lot of thought to their computer's power supply unless they use a laptop and lose its AC adapter. However, desktop computer power supplies are crucial ...

This article outlines power, ground, PCB, and system layout hints and kinks. It includes an overview of using power, ground star points, and multifrequency power decoupling. It also shows how to ...