51黑论坛_STM32超声波

单片机模拟交通灯显示。其中，红灯与绿灯显示时间均为50s，中间的黄灯显示时间为15s。绿灯用八位发光二极管流动闪烁作代表；红灯用八位发光二极管全亮作代表；黄灯用八位发光二极管全亮全灭闪烁作代表。刚开始显示的为绿灯。(SCM simulated traffic light display. Among them, the red and green display times are 50s, in the middle of the yellow light is displayed for 15s. Green with eight light-emitting diode flashes as a representative flow red with eight full brightness light-emitting diodes as a representative yellow with eight light-emitting diodes for all light flashes Quanmie representatives. Just beginning to show as green. Display order: green- yellow- red- yellow- green- yellow- red- ..................)

相比于传统使用的电机，永磁同步电动机（PMSM）具有着比较高的工作效率、比较高的力矩惯量比、比较高的能量密度和环保节能等优越特性，所以对永磁同步电机进行控制调速方面的研究有着相当重要的意义。我们设定电机转速初始值作为给定值，然后与反馈的实际值进行比较，得到的差值输入PI控制器进行控制，得到交轴电流。同时三相绕组输出的电流经过clarke变换和park变化得到电流的实际值，分别与给定值进行比较，将比较后的值再进行park转换，得到的结果经过SVPWM技术调制之后输入到逆变器，继而可以驱动三相电机。(Used compared to traditional motor, permanent magnet synchronous motor (all-digital fuzzy) has a higher efficiency, higher moment of inertia ratio, higher energy density and superior properties such as environmental protection and energy saving, so the control of permanent magnet synchronous motor speed regulation research has important significance. We set the initial value of motor speed as the given value, and then compare it with the actual value of feedback. The difference obtained is input to PI controller for control, and the current of crossaxis is obtained. At the same time the output three-phase winding current through Clarke transformation and park changes the current actual value, compared with a given value respectively, after comparing the value of the park transformation again, the result after SVPWM modulation technology input to the inverter, which in turn can drive three-phase motor.)

mems books--contains all information about micro electro mechanical systems

基于stm32USB模拟鼠标移动，演示用键盘的S1,S2,S3,S4模拟鼠标的上下左右移动。(Based on stm32, USB mouse, demonstration of the keyboard S1, S2, S3, S4 simulated mouse from top to bottom and move around.)

PT2258源代码,音频处理系统，高低音及输入切换(PT2258 source code, audio processing system, high and low, and input switching)

能够快速读取电子海图，还有简单的显示功能(ENC )

一个通过USB->UART读取C8051F060的程序，实现曲线分析、放大、报表等，采用多线程。 驱动从www.silabs.com下载，要用NI的UI控件。完整版。(a USB-)

采用multisim2000电路软件对蔡氏混沌电路以及蔡氏混沌电路的同步进行实现。(Software used multisim2000 circuit and Chua' s chaotic Chua' s chaotic circuit in parallel circuit to achieve.)

ez80L92系列汇编语言 单片机的始祖，不过在工控领域还是有人在使用。24位单片机(ez80l92 assembly language)

红外摇控(HT6221)控制小车,用51单片机编写的(Infrared remote control (HT6221) to control the car, written in 51 single chip microcomputer )