This 90s Motorola circuit from, has current limiting foldback. The power transistor is from the era, and equivalents can be used. The output is 250 V.
Unlike the CIR4620 circuit, the circuit shown in the figure operates by capacitance. This means...
This circuit is from an old publication of 1972 but can be mounted with BC548 transistors for 12 V...
We found this circuit in an old optoelectronics manual from Texas Instruments. However, more...