This regulator with current boost and short circuit protection was found in the LM2931 manual that is used in this case. The integrated circuit is not very common today.
Using a 555, this configuration appears elsewhere on this site. This is from American...
This circuit from a 90s Electronics Now, uses a 4010 gate as a signal amplifier. The circuit...
The circuit shown in the figure has a more efficient action, with an attenuation of 12 dB per...