Jestine-Yong-LCD-MONITOR-REPAIR--

在所考虑的时间间隔内,变化的电流、电压或功率的最大瞬间值。 (In the considered time intervals, change the maximum instantaneous value of the current, voltage or power.)

在arduino平台上，利用数字通信口输出pwm信号从而控制舵机转角(On the arduino plate, to use pwm signal control the rotation angle of steering engine.)

本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。(the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the )

DIYMP3，能智能播放，很好的运用了STM32系统相关知识，花费了我将近半年的努力，基本上包含了STM32所有功能的应用。(DIYMP3, play to intelligence, very good use of the STM32 system related knowledge, it took me about half effort, basically contains all STM32 function application.)

Keil uVision3例证代码NOMOD51 This file is part of the C51 Compiler package Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc. Version 8.01(Keil uVision3 example code NOMOD51This file is part of the C51 Compiler package Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc. Version 8.01)

It do the decoupled load flow in power system

sle4442 ic 卡 在8051单片机上读写功能的汇编语言实现(sle4442 ic card in 8051 on the reading and writing assembly language functions realize)

说明：  基于matlab/simulink永磁同步电机的模糊PID控制仿真模型，适用于永磁同步电机，仿真效果还可以(The fuzzy PID control simulation model based on MATLAB / Simulink is suitable for PMSM, and the simulation effect can also be)

说明：  基于16位ADC，AD7705的称重系统设计，以单片机89s52为数据处理和控制模块，1602为显示模块(Precision Weigh Scale Design Using the AD7192, 24-Bit Sigma-Delta ADC with Internal PGA, as AD converter and MCU 89s52 as data processer and controller)

stm32 smbus驱动程序，smbus和ii2c差不多，但有很多不同(stm32 smbus driver, smbus and ii2c similar, but there are a lot of different)