基于HCNR201的信号测量电路的研究

Research on measuring circuits of signal based on HCNR201

现代测控系统常用弱电信号控制强电,电气隔离至关重要。针对目前电气隔离器件状况,提出基于高精度线性光耦HCNR201的电压、电流测量电路。实验结果表明:电路稳定性好、线性度高。

Electrical isolation is vital to modern measuring and controlling system in which high amplitude signal is generally controlled by low voltage.Introduced are measuring circuits of voltage and current based on HCNR201,high-precision and high-linearity optocoupler,after surveying different kinds of current electrical isolators.Experimental results show that these circuits are highly stable and linear.