This course is a high-quality teaching video on the principles and applications of inverters taught by Professor Li Jiusheng of Harbin Institute of Technology. The complete course has a total of 36 hours. The main circuit of the frequency converter is the power conversion part that provides voltage-regulated and frequency-modulated power to the asynchronous motor. The main circuit of the frequency converter can be roughly divided into two categories. The voltage type is a frequency converter that converts the DC of the voltage source into AC, and the filter of the DC circuit. It's a capacitor. The current type is an inverter that converts DC from a current source into AC, and its DC loop filter is an inductor. It consists of three parts: the "rectifier" that converts industrial frequency power into DC power, the "smoothing circuit" that absorbs the voltage pulsations generated in the converter and inverter, and the "inverter" that converts DC power into AC power. Transformer".
In the process of making circuit boards, ink is needed to be printed on the solder mask and text to meet the functional requirements of the circuit boards. Let's first introduce the brands of commonly
First of all, I would like to thank the forum platform for providing us with such good resources. I haven't participated in forum activities for a long time. This time I happened to be making a small
Sensor nodes are required to work for a long time. Frequent replacement of batteries is time-consuming, laborious, and impractical in many situations. They cannot be charged as frequently as portable
How can we quickly become an embedded programmer? Actually, there is no shortcut to engineering. Let's listen to what a great programmer wrote below! Let's talk about hardware first: Read your digital
I used to use STM32F103V8, but this time I changed to STM32F103VB, bought 30, but there was a problem. I soldered two boards, and the crystal oscillator of one board would only start to oscillate (11.
[CCIDnet News] June 10th news: National Semiconductor Corp., which produces both analog and digital chips, announced its fourth-quarter results on Thursday. The company's profit increased this quarter
PCB Design
京公网安备 11010802033920号
