ARD00280,771-0344,Microchip 模拟开发套件 ARD00280 ,Microchip
The PIC18F87J72 Single-Phase Energy Meter Reference Design is a fully functional single phase meter featuring the PIC18F87J72 MCU with Analog Front End. This design uses a shunt for the current sensor in place of expensive current transformers. The PIC18F87J72 directly drives the LCD and includes both an isolated USB connection and non-isolated RS-232 interface for meter calibration and access to the device power calculations. The system calculates active/reactive energy, forward/reverse energy, active/reactive/apparent power and RMS current/voltage. The Microchip Energy Meter Single-Phase Software is used to calibrate and monitor the system. It can also be used to create custom calibration setups. For some accuracy requirements only a single point calibration may be required. The energy meter software offers an automated step by step calibration process that can be used to quickly calibrate energy meters.
Working single-phase energy meter
Energy calculation firmware: Active/Reactive Energy; Forward/Reverse Energy; Active/Reactive/Apparent Power; RMS Current & Voltage; Editable by meter designer
GUI-assisted software calibration
LCD display for energy
Low cost shunt based design
Better than IEC Class 0.5 performance
One PIC18F87J72 Single-Phase Energy Meter Reference Design
