摘要
介绍一种基于LPC9401单片机的单项复费率电能表的接口电路的设计,使用ADE7755作为计量芯片,并可以通过RS485和红外两种接口同外界通信。I2C总线器件的应用,减少了电路连线,提高了电能表工作的可靠性。
The interface circuit design for multi-rate Watt-hour meter based on the chip of LPC9401 is introduced.The meter with both RS-485 interface and infrared communication method and use an ADE7755 as measuring chip. The application of two-line bidirectional I^2C bus simplifies circuit and enhances the reliability.
出处
《电测与仪表》
北大核心
2007年第3期30-33,共4页
Electrical Measurement & Instrumentation
