Daily Archives: 2-March-2014

Paper Mechanism Project I Have to Build

I think this interrupted motion paper machine is really interesting. This is on my list for a project. If you want to see other projects like this, got Robert Ives' web site.

Posted in Paper Machines | Comments Off on Paper Mechanism Project I Have to Build

Incredible Mechanical Music Player

Take a look at this digitally-created instrument and how it is being played.

Posted in Personal, Uncategorized | Comments Off on Incredible Mechanical Music Player

Schmitt Trigger Design Math

I have a home project that requires me to design a Schmitt trigger circuit. There are numerous places on the web where you can find design equations for the Schmitt trigger constructed using an open-drain comparator. Unfortunately, these design equations do not model the output low-level saturation voltage of the comparator and in my application I need to be concerned about this voltage. My objective is to determine formulas for the resistors in the circuit as a function of the various threshold and output voltage levels I require. Continue reading

Posted in Electronics | 14 Comments