Microchip Technology ARD00342 Benutzerhandbuch
MCP3901 AND PIC18F65J90
ENERGY METER
REFERENCE DESIGN
© 2012 Microchip Technology Inc.
DS51968A-page 11
Chapter 1. Product Overview
1.1
INTRODUCTION
The MCP3901 and PIC18F65J90 Energy Meter Reference Design is a fully functional
IEC Class 0.5 compliant single-phase meter. This low-cost design does not use any
transformers and requires few external components. The PIC18F65J90 directly drives
the LCD, and includes both an isolated USB connection for meter calibration and
access to the device power calculations. The system calculates active energy, active
power, RMS current, RMS voltage, reactive energy, reactive power, apparent power
and other typical power quantities.
IEC Class 0.5 compliant single-phase meter. This low-cost design does not use any
transformers and requires few external components. The PIC18F65J90 directly drives
the LCD, and includes both an isolated USB connection for meter calibration and
access to the device power calculations. The system calculates active energy, active
power, RMS current, RMS voltage, reactive energy, reactive power, apparent power
and other typical power quantities.
The Microchip Energy Meter 1-Phase Software is used to calibrate and monitor the
system, and can be used to create custom calibration setups. For some accuracy
requirements, only a single point calibration may be needed. The energy meter
software offers an automated step-by-step calibration process that can be used to
quickly calibrate energy meters.
system, and can be used to create custom calibration setups. For some accuracy
requirements, only a single point calibration may be needed. The energy meter
software offers an automated step-by-step calibration process that can be used to
quickly calibrate energy meters.
FIGURE 1-1:
MCP3901 and PIC18F65J90 Single-Phase Energy Meter.