多路多档数字式交流恒流源电路的设计  

Multiplexing multiple digital ac constant current source circuit design

作　　者：刘洪正[1] 袁海燕[1] 尚兆功 隋首钢[2] 

机构地区：[1]山东省电力集团公司电力科学研究院,山东济南250101 [2]山东建筑大学,山东济南250101

出　　处：《自动化与仪器仪表》2016年第1期179-181,共3页Automation & Instrumentation

摘　　要：详细介绍了多路多档数字式交流恒流源电路的工作原理、电路设计以及控制策略,通过与现有恒流源技术的比较,该电路能够稳定产生多路多档恒定电流;并且该电路利用单片机控制,工作稳定且控制方便;4路调挡与4路选通电路能够分时复用同一高精度恒流源电路,既节省成本又能够消除系统误差;使用合理的程序算法,实现4路调挡与4路选通电路的协调控制。通过实验表明该电路具有上述优点,能够在电子测量领域广泛应用。Introduced the working principle circuit design and control strategy of multiplexing multiple digital ac constant current source circuit,by comparing with the existing technology of constant current source,the circuit can generate multiplexing multiple stable constant current; and the circuit using single- chip microcomputer control,stable working and easy to control; 4 road block and 4 road called the road can reuse the same high precision constant current source circuit,which saves cost and can eliminate system error; the program algorithm is reasonable,achieving 4 shift and 4 road gate circuit coordination control. The experiments show that the circuit has the advantages mentioned above,can be widely used in electronic measurement field.

关 键 词：恒流源 多路多档 数字式 

分 类 号：TN86[电子电信—信息与通信工程]