sfs

可实验0.5KHZ到10KHZ的简单测频,并由数码管显示出来!(Experimental 0.5KHZ can be simple to 10KHz frequency measurement by digital tube display!)

采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号，经过IR2104控制MOS，从而控制整个BUCK电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值，并由此调整输出的PWM的占空比，形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A，以0.01A递增，输出最大10V，液晶能显示实时输出电流与电压(use STC controller to generate pwm signal ，whic can dribe mos pipe，then control buck circuit)

脉搏血氧仪采用无创式技术测量血液中的氧含量。(The pulse oximeter was used to measure the oxygen content in the blood by noninvasive technique.)

CC2530获取终端光亮度，用于智能家居组网(Acquisition of analog brightness values in CC2530 ​ ​ for smart home networking)

T2 定时器应用简例，利用T2定时器控制小车的调速与测速功能的新定时办法(T2 timer application simple example, the use of the T2 timer to control the car' s speed and the speed function of the new timed approach)

说明：  arduino用u8g库驱动显示，外加DS18B20显示温度(Arduino uses u8g library to drive display and DS18B20 to display temperature)

单片机联网的UIP协议程序，以及必要的驱动程序。(Networked microcontroller UIP agreement procedure, and the necessary drivers.)

一个用C语言编写的51单片机实现频率测量的简易程序(yi ge yong C yu yan bian xie de 51 dan pian ji shi xian pin lv ce liang de jian yi cheng xu )

用单片机开发板对步进电机进行调控的代码，按键控制，可调速，正反转可调，并且带有1602液晶显示代码，显示步进电机当前的状态。(Code for regulation of the stepper motor microcontroller development board, key control, adjustable speed adjustable, rotating, and with 1602 LCD code display stepper motor current state.)

：针对电动汽车永磁同步电机无位置传感器控制系统，在两相静止坐标系( —B)内将滑模观测器法 与MRAS结合，提出了基于模型参考自适应的滑模观测器，并利用自适应律估计永磁同步电机的转子速度。仿真 和试验表明无位置传感器控制方法是切实可行的。 关键词：电动汽车永磁同步电机无位置传感器控制 自适应滑模观测器(This paper presents a new adaptive slid—mode observer for electric vehicle permanent magnet synchronous motor(PMSM)sensorless control system，which is combined with the sliding mode observer and model reference adaptive method in the two—phase stationary reference frame． The speed of PMSM rotor is estimated by adaptive law．Simulation and experimental results show that the sensol ]ess control method is practical and feasible。 Key words：EV PMSM position sensor]ess control ASMO(adaptive slid—mode observer))