Jenson 发表于 February 2, 2021
It feels that it is used for voltage regulation.
Terry 发表于 February 2, 2021
Which of the two ends of the mos tube is the output and which is the power supply? Hard to judge.
Elsa 发表于 February 2, 2021
D19 increases circuit reliability and stability. Not very useful here. It doesn't matter.
