I just saw a news video saying that at 8 a.m. on September 16, the U.S. space exploration technology company SpaceX used the manned Dragon spacecraft and the Falcon 9 rocket to launch the first purely
In this circuit, the secondary circuit voltage regulator TL431 is used as the reference and feedback error amplifier, sampling the output, generating an error voltage, which is converted into an error
Now I use AD software to draw pictures
The problems encountered are:
The trace width is 0.4mm and 0.8mm, and the maximum current will not exceed 500mA. I thought that when the hole was punched
The via
I believe that the first lesson for everyone to learn about single-chip microcomputers is to light up the first LED lamp. The first time you light up an LED, you must be very excited. You can control