November 2019

This article looks at some of the reasons why the filters you may think will work often do not when they’re put into real circuits. So… let’s talk about why filters fail.

This article describes a practical approach to the design and build of a sleeve dipole antenna mandated by a custom EMC standard.

Medical device veteran Jon Speer breaks down the latest changes in the medical device regulatory landscape, both in Europe and the U.S.

This article discusses where we are currently with the IEC 60601 series of standards and where we are headed for the next round of amendments (2020 - 2022). Further down the line is the development of the next full edition of the IEC 60601 Series (targeting around 2024 publication).

The risks of product liability sometime affect technological developments in hardware and software used to make products. They can stifle innovation and make some advancements seem too risky. How does the law view these products and what can be done to evaluate and reduce these risks.

Product markings and labels provide information about the product, installation, and use. The markings and labels can also provide warnings to avoid hazardous energy transfer to a body part. The product safety aspects of markings for identification, ratings, functions, connections, and warnings are described.

Let’s look at some examples of potential model deficiencies.

The Banana Skin columns were compiled by Keith Armstrong, of Cherry Clough Consultants Ltd, from items he found in various publications, and anecdotes and links sent in by the many fans of the column.