VNI8200 has been impossible to source even small quantities (100s) . My customer is exasperated and looking for alternatives. Are there changes in availability expected, other similar ST parts in the pipeline, or should I design it out?

I have a circuit very similar to AN4993 figure 7 that used a BTA16 Triac. They have become hard to find, so I am looking at replacing it with the more modern T1620T-8I , which is a snubberless triac. After reading AN4993 several times, I just want to...

I'm looking to build a small linear motor, that could move or just accelerate an incoming load with permanent magnets attached along a path, like a touchless conveyor belt. https://en.wikipedia.org/wiki/Linear_motorIt might have as few as 3 or as man...