This circuit is from 1964 documentation but can be easily implemented based on current components. Input waveforms and detection are shown next to the diagram.
This is a simple solution for old vehicles that do not have this feature, having been found in a...
Taking advantage of the high input impedance of the operational amplifier 741 and its high gain, we...
An interesting possibility of use for the 555 CMOS is as a low consumption LED flasher, as shown. In...