摘要
在高电压领域中,高压侧检测设备(如PT,CT)或传感器的输出信号需要传输到低压侧,光纤隔离式信号传输装置不仅能完成信号的传输,还能实现高低压的电气隔离,同时也具有很强的抗电磁干扰能力。利用电压-频率(V-F)转换芯片LM331和HFBR14XX系列光电器件设计出一套适合高电压直流测量信号的光纤隔离传输装置,并给出了具体的电路原理图。对其中的V-F转换电路进行了仿真,分析表明,其误差为0.01 V。
In high-voltage fields, high-voltage side inspection equipment （such as CT, PT） or the output signal of the sensor needs to be transmitted to the low-voltage side, the fiber isolation- transmission device not only can complete the transmission of the signal and achieve electrical isolation, but also has a strong ability to resist electromagnetic interference. A set of fiber isolation-transmission device for high-voltage DC measurement signal is designed by using the voltage frequency conversion （VFC） chip LM331 and photoelectric converter HFBR14XX. The circuit also is given. The V-F converter circuit is simulated, and the analysis shows that its error is 0.01 V.
出处
《辽宁科技大学学报》
CAS
2015年第5期366-369,共4页
Journal of University of Science and Technology Liaoning
