基于ADE7758的复费率三相电能表设计

摘要

设计了基于电能计量芯片ADE7758和单片机PIC16F877为核心的复费率三相电能表,实现了复费率电能计量、记录、自动抄表等功能.对具体的电压电流采样电路、计量电路、时钟电路、RS-485和红外通信电路等进行设计,并给出了系统软件流程图.设计的电能表硬件电路简单,抗干扰能力强,不同的通信接口方便用户使用,具有一定的应用价值.%A three-phase multi-rate electric power meter based on energy measurement chip ADE7758 and PIC16F877 single chip was developed. The meter realizes multi-rate electric power measurement, register and automatic metering. The measuring circuit of voltage and current,calendar and clock circuit, RS - 485 interface and infrared communication circuit was designed. And system software flow diagram was given. Hardware design of the meter circuit is simple,anti-interference ability,different communication interface user-friendly,has a certain value.