I'm going to do a project recently that requires controlling the forward and reverse rotation of a 220V AC motor. This requires two 943 relays and BT136 to achieve this. Does anyone have a good circui
I now have a board, in which I have written the USB firmware program, but I don't know how to develop the driver for the PC. I want to learn it, and hope everyone can give me some advice. I know the d
Revenue statistics of the world's top 14 wafer foundries in 2005 Company Name 2005 Revenue (US$ 100 million) Headquarters TSMC 82.2 Taiwan UMC 28.2 Taiwan SMIC 11.7 Mainland China CHARTERED 11.3 Singa
I don’t know why, but such a serious epidemic suddenly happened in 2020, and I predict that it will continue in the next few years.The disaster of 2020 has undoubtedly dealt a heavy blow to everyone.
[align=left]For many people, low-frequency magnetic field interference is the most difficult interference to deal with. This interference is generated by direct current or alternating current. For exa
Abstract: The dual closed-loop decoupling control principle of voltage-source PWM rectifier is analyzed. In view of the fact that grid disturbance and load disturbance have a great influence on the dy