2021-06-15 - John Dunn

Can LED bulbs survive long-term storage?

Light bulbs that have been in storage for many years pose no problem, but LED light bulbs would not likely…

2021-06-09 - Michael A. Shustov

Circuit solves independent frequency and fill factor adjustment problems

Here are two new solutions to the problem of independent frequency and fill factor adjustment in RC rectangular pulse generators.

2021-06-09 - Keith Szolusha and Brandon Nghe, Analog Devices Inc.

How to use LTspice to produce bode plots for LED drivers

Proper control loop phase and gain measurements should be made by factory experts possessing (expensive) equipment and commensurate experience. For…

2021-06-01 - Susan Nordyk

32-bit stereo audio DAC enables expressive playback

Part of Rohm’s MUS-IC series for high-end audio equipment, the BD34301EKV 32-bit stereo audio DAC enables expressive playback of music.

2021-06-01 - John Dunn

Nature exploits prime numbers to ensure cicada survival

Nature exploits prime numbers to ensure the survival of two closely-related species and the magnitude of acoustic stress that gets…

2021-05-26 - Victor Wollesen and Eldrich Rebello

SDR enables mechanisms for tuning various frequencies

This tutorial on software-defined radio discusses how it enables specific mechanisms for tuning various frequencies including direct sampling and mixing.

2021-05-20 - John Dunn

Use a Smith chart for component characterizations

Applicability of the Smith chart also applies to component characterizations, sometimes with intuitively surprising results.

2021-05-19 - Chang Fei Yee

Essential considerations for effective power rail noise filtering with ferrite beads

This article highlights the essential considerations for effective power rail noise filtering on PCB assembly with ferrite beads.

2021-05-18 - Bill Schweber

DC/DC controller incorporates active filtering of switching noise

A new DC/DC controller incorporates active filtering of switching noise on a DC power rail into its basic design.

2021-05-12 - Vijay Deshpande

Build a low-cost solar day lamp

This Design Idea presents inexpensive design features that expand the solar day lamp's usefulness for several applications.