To power a TLC555, use TL431 to make a small power supply. The schematic diagram comes from the TL431 chip manual.
How to calculate the output current of this power supply
The blue box on the left of the picture below is a complete DC boost circuit, so what is the function of adding the red box circuit on the right? Please help me answer this question. Thank you!
LT317:
Everyone has three kinds of freedom:the freedom to let gothe freedom to keepthe freedom to choose.People have the freedom to gain and the freedom to let go.