Microchip Technology ARD00342 사용자 설명서
MCP3901 AND PIC18F65J90
ENERGY METER
REFERENCE DESIGN
© 2012 Microchip Technology Inc.
DS51968A-page 3
Table of Contents
1.1 Introduction ................................................................................................... 11
1.2 What the MCP3901 and PIC18F65J90 Energy Meter
1.2 What the MCP3901 and PIC18F65J90 Energy Meter
Reference Design Kit Includes ............................................................... 12
2.1 Overview ...................................................................................................... 13
2.2 Input and Analog Front End ......................................................................... 16
2.2 Input and Analog Front End ......................................................................... 16
3.1 Calculation Engine Signal Flow Summary ................................................... 17
3.2 Register List ................................................................................................. 18
3.3 MODE ........................................................................................................... 19
3.4 STATUS ....................................................................................................... 20
3.5 CAL_CONTROL ........................................................................................... 20
3.6 LINE_CYC ................................................................................................... 21
3.7 LINE_CYC_CNT ......................................................................................... 21
3.8 RAW2_I_RMS .............................................................................................. 21
3.9 RAW_I_RMS ................................................................................................ 22
3.10 I_RMS ........................................................................................................ 22
3.11 RAW2_V_RMS ......................................................................................... 22
3.12 RAW_V_RMS ........................................................................................... 22
3.13 V_RMS ....................................................................................................... 22
3.14 LINE_FREQUENCY ................................................................................... 23
3.15 RAW_POWER_ACT ................................................................................. 23
3.16 POWER_ACT ............................................................................................. 23
3.17 POWER_APP ............................................................................................ 23
3.18 RAW_POWER_REACT ............................................................................. 24
3.19 POWER_REACT ........................................................................................ 24
3.2 Register List ................................................................................................. 18
3.3 MODE ........................................................................................................... 19
3.4 STATUS ....................................................................................................... 20
3.5 CAL_CONTROL ........................................................................................... 20
3.6 LINE_CYC ................................................................................................... 21
3.7 LINE_CYC_CNT ......................................................................................... 21
3.8 RAW2_I_RMS .............................................................................................. 21
3.9 RAW_I_RMS ................................................................................................ 22
3.10 I_RMS ........................................................................................................ 22
3.11 RAW2_V_RMS ......................................................................................... 22
3.12 RAW_V_RMS ........................................................................................... 22
3.13 V_RMS ....................................................................................................... 22
3.14 LINE_FREQUENCY ................................................................................... 23
3.15 RAW_POWER_ACT ................................................................................. 23
3.16 POWER_ACT ............................................................................................. 23
3.17 POWER_APP ............................................................................................ 23
3.18 RAW_POWER_REACT ............................................................................. 24
3.19 POWER_REACT ........................................................................................ 24