I can't select the copper part after the ad is covered. I created it on the top layer and immediately selected it. I tried it on other layers, but they can't be selected after they are created. I can
Does anyone have a good way to pull up the P0 port of the 51 single-chip microcomputer to 6.5V (the single-chip microcomputer is powered by 3.3V, and the P0 port is used as an output port to generate
Ladies, when you choose a husband, please compare the electronic engineer with the following professions: Doctor Almost all women like to pursue doctors. So don't expect your marriage to last more tha
[size=3]During this year, I believe you have participated in many wonderful activities organized by EEWORLD! I heard that some netizens have won so many awards, while others have never received any pr
[i=s] This post was last edited by qwqwqw2088 on 2019-2-27 08:52 [/i] [b][size=4]Ripple[/size][/b] [size=4]The output of a switching power supply is not truly constant. There is periodic jitter in the
PCB Design
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