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| Número de pieza | MCP3907 | |
| Descripción | Energy Meter Reference Design | |
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MCP3907
Energy Meter
Reference Design
© 2010 Microchip Technology Inc.
DS51917A
1 page  
MCP3907 ENERGY METER
REFERENCE DESIGN
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB® IDE on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
MCP3907 Energy Meter Reference Design. Items discussed in this chapter include:
• Document Layout
• Conventions Used in this Guide
• Recommended Reading
• The Microchip Web Site
• Customer Support
• Document Revision History
DOCUMENT LAYOUT
This document describes how to use the MCP3907 Energy Meter Reference Design
as a development tool to emulate and debug firmware on a target board. The manual
layout is as follows:
• Chapter 1. “Product Overview” – Important information about the MCP3907
Energy Meter Reference Design.
• Chapter 2. “Installation and Operation” – Includes instructions on how to get
started with this board, with a detailed description of each block.
• Appendix A. “Schematic and Layouts” – Shows the schematic and layout
diagrams for the MCP3907 Energy Meter Reference Design.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MCP3907 Energy Meter Reference Design.
© 2010 Microchip Technology Inc.
DS51917A-page 5
5 Page 
MCP3907 ENERGY METER
REFERENCE DESIGN
Chapter 2. Installation and Operation
2.1 INTRODUCTION
The MCP3907 Energy Meter Reference Design is a complete stand-alone
single-phase residential meter design for energy meter manufacturers. This energy
meter design does not require a crystal for a lower cost meter design. This design also
serves as the design of the analog front end (AFE) for advanced meter products. The
design includes a low cost DC power supply circuit and the necessary protection for
IEC62053-21 EMC testing and IEC62053-21 accuracy.
.
8884822
9995933
0006044
1117155
1000 imp/KWh
Class 1 Meter
5(40)a
MCP3907
Reference Design
MCP3907
Class 1 Meter 5(40)a
POWER = 1432 kW
ENERGY = 43213 kWh
01/05/2010
15:23:23
PIC® MCU
MCP3907
DIGITAL
ANALOG
current sensing
element
current sensing
element
MCP3907 Stand-Alone Mechanical Counter
Energy Meter
Microcontroller-based LCD Energy Meter
FIGURE 2-1:
MCP3907 Stand-Alone Energy Meter and Microcontroller-Based Energy-Using
MCP3907 AFE Design.
For more detailed information regarding design decisions and approach to IEC
compliance using the circuitry in this board, please refer to AN994 application note
(DS00994).
© 2010 Microchip Technology Inc.
DS51917A-page 11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet MCP3907.PDF ] | |
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