论文部分内容阅读
利用电力线载波通信是用电管理和配电自动化中一种最有效、最经济、最简便的数据传输方式。在实验和应用电力线载波集成芯片ST7538的基础上,对该芯片的功能、特点及工作原理进行了较全面的介绍;然后根据其特点、工作原理设计了一种接口电路。通过长期测试与现场应用,证明了该芯片具有性能优良、功能强大、使用方便等特点,其接口电路既能高效率地传输载波信号,又能完全地隔离50Hz/60Hz的工频信号,具有进一步推广应用的价值。
The use of power line carrier communication is one of the most efficient, economical, and simplest data transmission methods in power management and distribution automation. Based on the experiment and application of power line carrier integrated chip ST7538, the function, characteristics and working principle of the chip are introduced in detail. Then an interface circuit is designed according to its characteristics and working principle. Through long-term test and field application, it has been proved that the chip has the characteristics of excellent performance, powerful function and convenient use. The interface circuit can transmit the carrier signal with high efficiency and can completely isolate the power frequency signal of 50Hz / 60Hz, Promote the value of the application.