![](https://img-bbs.csdn.net/upload/202004/15/1586909019_756644.jpeg)
CodePudding user response:
Upstairs to the brothers, two type of chip is very fuzzy couldn't see, make clear a bit and see,![](https://img.codepudding.com/202012/175167060620411.gif)
![]( https://img.codepudding.com/202012/175167060620411.gif )
CodePudding user response:
The board feels like the male version of the male die, a lot of home made like that,CodePudding user response:
Brothers, the forehead temperature gun used in a DC/DC step-up IC, ultra low power/low ripple in need can find me,