We found this circuit in a 90's EDN. The circuit is based on a control integrated that is still common in these types of applications. The circuit uses a PROM.
The circuit shown is from Texas Instruments optoelectronics documentation. The input signal is...
It is an improved version of the previous circuit with a voltage follower that reduces the load...
This circuit was obtained in an American documentation of 1975. The transistor can be the BC548, and...