We found this circuit in the Texas Instruments optoelectronics manual. Field effect transistors can be BF245 and bipolar BC548. The sensor is a photodiode in the photo-generator mode.
This 13.8 V power supply with 10 A output is intended to supply power to automotive power...
With the circuit shown in the figure, we have a logic signal to activate a calling device when...
We found this circuit in an American documentation from the 90's. The circuit can be assembled with a...