xdliuyuxin 发表于 2015-10-26 16:22 假设三极管导通的时候是工作在饱和区的,LED压降为2V.则470欧姆电阻压降只剩下3.3(VBAT)-2-0.2=1V,电流 ...
Undo
Redo
Table
Removeformat
Autotypeset Left Center Right
FloatLeft FloatRight Orderedlist Unorderedlist
点击图片添加到帖子内容中
Archiver|手机版|小黑屋|52RD我爱研发网 ( 沪ICP备2022007804号-2 )
GMT+8, 2024-4-19 19:33 , Processed in 0.042436 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.5
© 2001-2023 Discuz! Team.