2019-04-18 - Timothy Hegarty

Reduce EMI and power loss in dual-battery automotive systems

This article highlights a power-stage layout for lower EMI in automotive DC/DC regulator circuits that use a controller with external…

2019-04-12 - Bill Schweber

Is Studying Classic Analog Filters Still Worth It?

Analog, discrete-element filters have served us well for over a hundred years, but maybe we now need to focus education…

2019-04-08 - Bill Schweber

Is hand-soldering still needed?

Let’s face it: most components are too small to solder and many ICs simply can’t be hand-soldered due to connection…

2019-04-02 - Kenneth Wyatt

Design PCBs for EMI, part 2: Basic stack-up

Learn how to stack-up a board's trace, power, and return layers to minimize interference.

2019-03-15 - Kenneth Wyatt

Design PCBs for EMI, part 1: How signals move

Part 1 of this two-part article explains the relationship between electrical signals and magnetic fields and how signals move through…

2019-02-08 - Kenneth Wyatt

Review: Tekbox TBCP1 RF current probe

The Tekbox TCBP1 has an attractive price, but has a mechanical limitation not found in more expensive probes.

2019-01-25 - Bob Witte

What’s that signal’s bandwidth?

A signal's bandwidth is related to its rise time because rising edges usually have the signal's highest frequency components.

2018-11-21 - Martin Rowe

Repair: HP 34401A capacitor failure

In another case of failed capacitors, this classic meter needed some power-supply capacitors replaced, and the diodes that came with…

2018-11-07 - Istvan Novak

PCB fixtures improve component measurements

Using PCBs as fixtures improves component characterization measurements over wires and connectors.

2018-10-17 - Amitava Banerjee & Jeetendra Ashok

PCI Express 3.0 needs reliable timing design

Timing plays an essential role in determining the reliability of applications using PCI Express. With an understanding of the impact…