摘要
该数控恒流源采用模块化设计,基于单片机控制,明显提高了恒流源的稳定度及输出精度。输出电流值通过键盘和开关来进行设置,配合单片机的编程来实现显示和控制,同时D/A的显示利用DAC0832来实现,模拟输出控制电压,然后由功率三极管与运算其组成的电流反馈系统实现输出电流的恒定。
Through the keyboard and switch to set the value of the output current,with the microcontroller programming to achieve the display and control,while the D\A display to realize the use of DAC0832,analog output control voltage,constant and the power transistor and the operation which are composed of the current output current feedback system.
出处
《电子测试》
2013年第6S期4-5,共2页
Electronic Test
关键词
单片机
数控恒流源
模块化
运算放大器
single chip microcomputer
modularization
operational amplifier
