The purpose of the strobe circuit in this sensor amplifier is to reduce consumption. The circuit is from old documentation (1970s), but the idea can be used in modern applications.
This application is from a circuit manual from the 90s and only works with incandescent lamps. The triac...
This circuit was found in an American magazine in 1978. It activates a relay when the speed of a...
This circuit is from 1976 documentation, but it can be assembled with more modern transistors like...