Suggested by Sprague in the 1980s documentation, this circuit can control three-phase AC motors. The original documentation does not specify the maximum motor current.
This circuit was found in an Italian magazine Radiorama from 1960, but it can be assembled with...
In the figure we have a TTL logic interfacing circuit as CMOS logic using a 6N139 optocoupler...
Found in an Electronic Design, this small power source uses a battery as a voltage reference,...