适用高精度电流表校测的直流稳流电源

A Direct Current stablized Power Source For Correcting and Measuring of High Precision Current Meters

研究一种高稳度直流电源电路，它采用闭环式负反馈稳压控制回路（比例积分器）来实现输出电流的恒定．叙述了电路的工作原理和电路基本组成．并对电路的主要无任元件、参数作了分析计算，该电源作为直流电表校测电源，其可调范围大。

The author introduces a kind of circuit of the direct power source of hing stability in this article.Voltage stablized control loops negative feedback are made ues of to realize constancy of outputcurrent. Working principle and basic component of the circuit are detaied in this article and main components and parameters have been analysed and calculated. The power source has a wide adjustable range and stable performance as a correcting and measuring power source of direct current meters.