EDN

Reducing EMI by using spread spectrum techniques

As an engineer, you know how fast consumer electronics devices operate and how many tasks they perform in fraction of second. High-speed operation of these devices has made possible the many pleasures ...
EDN

05.21.98 Use spread-spectrum techniques to reduce EM

Use spread-spectrum techniques to reduce EMISteve Bolger and Samer Omar Darwish, Integrated Circuit SystemsIn many countries, EMI requirements limit the selling of PCs. Spread-spectrum techniques are ...
Electronic Design

Measure Spread-Spectrum Clock’s Effects On Switching Supply EMI

Fig 1. In a typical PWM controller in which the active devices are driven by a simple square wave, a Fourier representation of the clock’s frequency spectrum consists of the fundamental switching ...
Electronic Design

Tried-and-True Techniques to Lower EMI in Power-Supply Designs

Ways to mitigate noise in SMPS. What to look for in PCB layout to reduce EMI. What are SSFD and DRSS? Electromagnetic-interference (EMI) reduction techniques for power circuit designs are segmented ...
Radio World

DARPA Wants to Create Jam-Resistant Comm System

This article originally appeared in TV Technology. DARPA is soliciting for innovative research proposals to explore the feasibility of a wideband spread-spectrum RF communications system with greater ...