This circuit was suggested by Sprague Electric in an 80's documentation. The circuit uses a tachometric sensor for feedback. The current was not indicated in the original documentation.
This sample and hold circuit is from a 1969’s documentation. However, it can be built with modern...
The integrated circuit used in this 1975 application no longer exists, and it is also not...
This circuit, suggested by Philips Components, uses as a base a voltage comparator of the type...