A digital filter system (DFS), Part 1
Editor’s note: In this Design Idea (DI), contributor Bonicatto designs a digital filter system (DFS. This is a benchtop filtering system that can apply various filter types to an incoming signal. Filtering range is up to 120 kHz.
In Part…
Silly simple precision 0/20mA to 4/20mA converter
This Design Idea (DI) offers an alternative solution for an application borrowed from frequent DI contributor R. Jayapal, presented in: “A 0-20mA source current to 4-20mA loop current converter.”
It converts a 0/20mA current mode input,…
Transitioning from Industry 4.0 to 5.0: It’s not simple
The shift from Industry 4.0 to 5.0 is not an easy task. Industry 5.0 implementation will be complex, with connected devices and systems sharing data in real time at the edge. It encompasses a host of technologies and systems, including a high-speed…
Expanding power delivery in systems with USB PD 3.1
The Universal Serial Bus (USB) started out as a data interface, but it didn’t take long before progressing to powering devices. Initially, its maximum output was only 2.5 W; now, it can deliver up to 240 W over USB Type-C cables and connectors,…
Simple state variable active filter
The state variable active filter (SVAF) is an active filter you don’t see mentioned much today; however, it’s been a valuable asset for us old analog types in the past. This became especially true when cheap dual and quad op-amps became…
A budget battery charger that also elevates blood pressure
At the tail end of my September 1 teardown of EBL’s first-generation 8-bay battery charger:
I tacked on a one-paragraph confession, with an accompanying photo that as usual, included a 0.75″ (19.1 mm) diameter U.S. penny for size comparison…
Delta-sigma demystified: Basics behind high-precision conversion
Delta-sigma (ΔΣ) converters may sound complex, but at their core, they are all about precision. In this post, we will peel back the layers and uncover the fundamentals behind their elegant design.
At the heart of many precision measurement…
