1. Permanent magnet motor is an electric motor that uses permanent magnets to provide a magnetic field. For a motor to do work, two conditions are required: one is the existence of a magnetic field, a...
[backcolor=rgb(222, 240, 251)]I am a newbie, and I am using a TFT 7-inch touch screen in my project. I have a question that I don't quite understand. [/backcolor] [backcolor=rgb(222, 240, 251)]Does th...
Recently, I tested an automotive component. The chip used was JTA1021, the Lin output was 100-170KHz, and the radiated emission exceeded the standard by about 12dB.
The current rectification methods a...
[i=s]This post was last edited by xld0932 on 2019-4-19 12:25[/i] [font=Tahoma][size=3] Overview: The latest AT file on Espressif's official website is the ESP8266 AT Bin V1.7.0 version released on Aug...
Read image. Get pixels and print. Mat src_image_ = imread( "/home/jack/test2.jpg"); Vec3b bgr = src_image_.at(src_image_.rows/2,src_image_.cols/2);cout"B="If you don't force the conversion, the output...
[font=新宋体]【Ask if you don't understand】 As shown in the figure, the input on the far left of the circuit is 540VDC after rectification of 380VAC. On the secondary side, the "ground" GND of the output ...