照片视图或管理信息源

本次设计的数控直流电阻箱主要由恒定电流源部分、显示部分、键盘部分、电源部分组成。以STM32单片机为核心控制恒流源，恒流源电路由达林顿三极管、高精度运算放大器、采样电阻等组成。通过键盘输入给定值，经D/A转换器将数字信号转换为模拟信号，控制电流。采用电流反馈电路控制精度，经多次调试改进，实现了直流电阻箱的功能。本次设计的数控直流电阻箱较以往的电阻箱相比，其优点在于可操作性强、精度高、体积小、高效节能等优点。适用于作为直流负载的应用场合。(The numerical control DC resistance box designed mainly consists of constant current source part, display part, keyboard part and power supply part. The constant current source is controlled by STM32 single chip microcomputer. The constant current source circuit is composed of Darlington transistor, high precision operational amplifier and sampling resistor. Through the keyboard input a given value, the D/A converter converts the digital signal into analog signal to control the current. The control precision of the current feedback circuit is improved, and the function of the DC resistance box is realized through many debugging improvements. Compared with the conventional resistance box, the designed DC resistance box has the advantages of strong operability, high accuracy, small size, high efficiency and energy saving. It is suitable for application as DC load.)

说明：  DS18B20 测温，利用protues和keil联调的方式实现，测量的温度范围在-55°C~+125°C。(DS18B20 temperature measurement using keil FBI protues and means to achieve the measured temperature range-55 ° C ~+125 ° C)

学习C++时候,创建一个测试小类.供学习用

JY901 stm32f1程序 包括串口和IIC通信 亲测可用(JY901 stm32f1 include usart and IIC it can be used in different place)

51单片机播放音乐《兰花草》程序，包括proteus仿真(51 microcontroller play music " orchids" program, including proteus simulation)

battery_params battery_params

Gud system for resume making in C,C++

编程序实现如下功能：输入任意一个年份，按以下格式输出该年份全年的公历日历。(Programmed to achieve the following functions: Enter any one year, according to the following format output that year Gregorian calendar year.)

基于LPC2103的步进电机驱动实现。 可做为步进电机驱动算法的范例。电机算法为T型/s型结合算法。 有效的驱动电机。同时，可以做为LPC2103的学习使用，结合实际项目，学习LPC2103 同时，可以做为步进电机驱动的学习范例，可以很好的了解步进电机的驱动实现

CRT-571-V10 IC卡发卡机软件