Today I am experimenting with a single chip Universal Active Filter, in this case I made a small PCB for the UAF-42 from Texas Instruments. I chose this part in particular as it facilitates setting ...

Active filters are ubiquitous in electronic design today, performing signal-frequency manipulation and conditioning for audio, IF (intermediate frequency), and digital-signal processing. The success ...

In the last edition of Don’t Fear the Filter, we built up two examples of the simplest and most-used active filter of all time: the two-pole Sallen-Key lowpass. This time, we’re going to put two of ...

Scientists in the Middle East have developed a series active filter to improve power quality in grid-tied PV systems, consisting of an inductor, two capacitors, and four transistor-diode pairs. The ...

When multistage designs are intended using low power op amps, the load presented by a poorly designed stage might in fact impair the intended signal frequency response above the high pass corner. Some ...

Sponsored by Texas Instruments: A unique electromagnetic-interference reduction feature facilitates high-power-density designs while shrinking their footprint and cost. Since power density is a ...

All circuits, analog or digital, have characteristics dependent on the values of their component parts. Invariably, these parts are non-ideal in many ways. Even their most fundamental characteristics, ...

Physicists have proven theoretically that active sieving, as opposed to its passive counterpart, can improve the separation abilities of filtration systems. Active sieving also has the potential to ...

Schaffner is aiming at active front end (AFE) drives and active in-feed converters (AIC) with a range of three-phase LCL mains filters. Called FN 6840, they come in a variety of specifications and are ...