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 is the traditional configuration of an unregulated bridge rectified power source. The circuit...
In the figure we have a circuit that produces interval pulses, reproduced in the piezoelectric...
Found in American documentation from the 90s, this circuit passes frequencies above 1 kHz. The...