摘要
设计了一种低压电力线载波通信模块系统,重点介绍了系统的实现过程。以89C2051为核心控制器,利用专用电力线载波芯片ST7538,设计并解释了系统的硬件连接;对ST7538电力线接口电路进行了设计,并对其中的发送放大电路及其电源控制、耦合电路的设计做了详细的描述;对模块系统做了软件设计。实验结果表明,该模块系统工作稳定、可靠。
A carrier communication module for low voltage power line was designed, and implementation of system was introduced emphatically. Taking use of 89C2051 as core controller, the hardware connection and interface circuit of system were designed and interpreted by special power line carrier chip ST7538. The design of power control of amplifier circuit of transmitter and coupling circuit was detailed expounded, and software design of module was given. The experiment shows that the module system can work stably and reliably.
出处
《低压电器》
北大核心
2008年第11期33-36,共4页
Low Voltage Apparatus
关键词
电力线载波通信
调制与解调
接口电路
串行通信
carrier communication of power line
modulation and demodulation
interface circuit
serial communication
