In this 2001 circuit we have the way to trigger an SCR with a phototransistor. The circuit appears elsewhere in this section, obtained from publications from different eras.
September 2016 - Mouser Electronics already has in stock the new IC TPS92515 LED driver from Texas...
This circuit is a variation of the previous one (CIR9748) having an output of 600 ohms. The T1...
This circuit was found in the 2005 Linear Technology Linear Circuit Manual. It is a sensor with large...