低压电力线载波通信的接口电路设计

中国加入WTO后纺织业面临的竞争环境发生变化,面对国外反倾销等其他非关税壁垒的加强,研究浙江纺织业如何通过规范竞争秩序等措施,避免被国外反倾销,对具有比较优势的浙江纺织业具有重要意义。

Design of the Interface Circuit of Communication with Low-Voltage Power Line

In the interest of realizing carrier communication using LVPL, it is a sticking point to design the interface circuit of the communication. The difficulty is: one side,higher efficiency of loading carrier signals is demanded;on the other hand,very little disturbs from LVPL are required.So,the "complex-coupling-technology"of combining"electromagnetism-coupling"to"RC-coupling"is used to solve the difficulty. Based on the"complex-coupling-technology",the interface circuit of the communicationusing LVPL is analysed and designed. Simulation and experimentation results show that the interface circuit not only has higher efficiency of loading carrier signals but also can completely close off 50Hz signal from LVPL. Therefore, the interface circuit can apply to communication systems on LVPL.