We found this circuit in a 1997 documentation. It is possible to automatically reverse the direction of rotation of a three-phase motor. The circuit uses WEG timers and contactors.
S1 changes the selection of the input signals in the circuit shown here. Other type of circuits,...
Found in documentation two years 80, this toy instrument uses an integrated circuit little...
With this configuration, greater power can be obtained from an operational amplifier, thanks to...