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".
The deployment of the Beidou satellite navigation system was completed some time ago, which can provide global users with all-weather, all-day, high-precision positioning and navigation services. Posi
Solution IntroductionThe non-magnetic smart water meter solution is based on the MCU chip to realize the water meter related metering functions. The module is divided into a transmitting coil and a re
Using a current transformer can reduce the loss when measuring the primary current of the converter. For example, in a high-power switching power supply, a current transformer coil is needed to monito
This program is to make the P0.0 port output PWM waveform to control the LED light and form a gradual brightness effect.The while (1) loop that is always executed in the main function is to make the d