西安交通大学的电力电子课件，写的很好！ 从器件介绍到后面逆变器、整流器等的介绍都不错！-Xi' an Jiaotong University power electronic courseware, written well! From the introduction to the back of the device inverter, rectifier, etc. are all good descr iption!

SMD二极管,三极管代码识别手册 希望能给大家识别二极管,三极管的型号提供帮助-SMD diode, triode manual code recognition we hope that they will identify the diode, triode models to help

用动态扫描的方法编程检测键盘按键的状态，当有按键按下的键码，同时将键码显示在8位发光二极管上。-Dynamic scanning method with the detection of the keyboard keys programmed state, when there are key codes of keys pressed, while key code displayed in the eight light-emitting diode.