Yesterday I received a call from the courier and learned that the [POS machine kit] had arrived. I was very happy. I wonder what was inside? I was looking forward to it. When I opened it, I saw a lot ...
[size=4][color=#000000][backcolor=white] In many engineering applications, PWM waves (pulse width modulation) are needed, such as motor speed regulation, temperature control and power adjustment. This...
[p=30, null, left][color=#252525][font=宋体,]The economic term "inflation" may be the most appropriate to describe the battery life of mobile phones. A few years ago, even flagship models such as Samsun...
Under EVC, IImage can decode PNG, but why is the transparent part white? Below is the code. How can I solve this problem? Is there any other way to solve the display problem of PNG under EVC? hr = Fin...
[i=s] This post was last edited by wgsxsm on 2015-6-12 10:39 [/i]Note: KEY 1,3 are connected together by hardware, please ignore the NC component. As shown in the figure above, when the KEY is pressed...
In any switching power supply design, the physical design of the PCB board is the last link. If the design method is not appropriate, the PCB may radiate too much electromagnetic interference, causing...