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Microchip Technology MCP3905A Скачать руководство пользователя страница 17

MCP3905A/06A ENERGY METER

REFERENCE DESIGN

©

2009 Microchip Technology Inc.

DS51565B-page 13

Appendix A. Schematics and Layouts

A.1

INTRODUCTION

This appendix contains the following schematics and layouts for the MCP3905A/06A
Energy Meter Reference Design:

• Board Schematic

• Board – Top Layer

• Board – Bottom Layer

A.2

SCHEMATICS AND PCB LAYOUT

The layer order is shown in Figure A-1.

FIGURE A-1:

LAYER ORDER

Top Layer

Bottom Layer

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15
16
17
18
19
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Содержание MCP3905A

Страница 1: ...2009 Microchip Technology Inc DS51565B MCP3905A 06A Energy Meter Reference Design...

Страница 2: ...rochip Technology Incorporated in the U S A All other trademarks mentioned herein are property of their respective companies 2009 Microchip Technology Incorporated Printed in the U S A All Rights Rese...

Страница 3: ...Kit Includes 5 Chapter 2 Installation and Operation 2 1 Introduction 7 2 2 Features 7 2 3 Getting Started 8 2 4 Energy Meter Reference Design Overview 9 2 5 Front Side Of PCB Detailed Description 10...

Страница 4: ...MCP3905A 06A Energy Meter Reference Design DS51565B page iv 2009 Microchip Technology Inc NOTES...

Страница 5: ...started with this board Appendix A Schematics and Layouts Shows the schematic and board layout diagrams for the MCP3905A 06A Energy Meter Reference Design Appendix B Bill Of Materials BOM Lists the p...

Страница 6: ...ld characters A dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format where N is the total number of digits R is the radix and n is a digit 4 b0010 2 hF1 Text in angle br...

Страница 7: ...contains the following information Product Support Data sheets and errata application notes and sample programs design resources user s guides and hardware support documents latest software releases...

Страница 8: ...Meter Reference Design DS51565B page 4 2009 Microchip Technology Inc DOCUMENT REVISION HISTORY Revision B August 2009 Update from MCP3905 06 to MCP3905A 06A devices Revision A July 2005 Initial Relea...

Страница 9: ...s instantanous power information for calibration The device contains function blocks specific for IEC energy meter compliance such as a no load threshhold and startup current The MCP3905A 06A Energy M...

Страница 10: ...MCP3905A 06A Energy Meter Reference Design DS51565B page 6 2009 Microchip Technology Inc NOTES...

Страница 11: ...ive Energy Meter Design Using The MCP3905A 06A DS00994 2 2 FEATURES The MCP3905A 06A Energy Meter Reference Design PCB has the following features Protection for IEC62053 Energy Meter EMC Immunity Test...

Страница 12: ...t JP3 to the neutral line 3 Connect JP1 and JP2 across the shunt 4 Connect JP5 and JP6 to the mechanical counter 2 3 2 Calibration of the Frequency Output using the Voltage Divider Calibration Circuit...

Страница 13: ...CB standoffs The major components on the front side of the MCP3905A 06A Energy Meter Refer ence Design are listed here and described in Section 2 5 Front Side Of PCB Detailed Description 1 Shunts for...

Страница 14: ...or is shorted and bypassed 2 5 3 Output Connections for Mechanical Counter and Calibration JP5 JP7 JP5 and JP6 are the differential output drive for the mechanical counter JP7 is the calibration or mi...

Страница 15: ...supply is created from a half wave zener diode limited AC signal feeding a 7805 5V regulator C17 and C16 divide the AC signal coming directly from the line and designed in this document for 220V The...

Страница 16: ...MCP3905A 06A Energy Meter Reference Design DS51565B page 12 2009 Microchip Technology Inc NOTES...

Страница 17: ...cs and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP3905A 06A Energy Meter Reference Design Board Schematic Board Top Layer Board Bottom Layer A 2 SC...

Страница 18: ...1K R16 330K R15 330K C10 0 1uF VDD JP1 JP2 R21 470 Ohms MOV1 140 J JP4 JP3 VDD CAL LOW CAL HIGH R23 1K J12L 0 Ohms J11L 0 Ohms J12H 0 Ohms J11H 0 Ohms J13L 0 Ohms J14L 0 Ohms J14H 0 Ohms J13H 0 Ohms J...

Страница 19: ...Schematics and Layouts 2009 Microchip Technology Inc DS51565B page 15 A 4 BOARD LAYOUT TOP LAYER A 5 BOARD LAYOUT BOTTOM LAYER...

Страница 20: ...MCP3905A 06A Energy Meter Reference Design DS51565B page 16 2009 Microchip Technology Inc NOTES...

Страница 21: ...R10U 5 J11H J12H J13H J14H J15H RES 0 0 OHM 1 8W 5 0805 SMD Panasonic ECG ERJ 6GEY0R00V 5 J11L J12L J13L J14L J15L Do Not Populate 8 JP1 JP8 PIN RECPT 032 046 DIA 0328 SER Mill Max Manufacturing Corp...

Страница 22: ...CG ERJ 8GEYJ100V 1 U1 Energy Metering Device Microchip Technology Inc MCP3905A I SS 1 U2 IC VOLT REG 5V 100MA 8 SOIC National Semiconductor LM78L05ACM 1 U3 1 CHANNEL OPTO COUPLER TRANS DIP NEC PS2501...

Страница 23: ...Bill Of Materials BOM 2009 Microchip Technology Inc DS51565B page 19 NOTES...

Страница 24: ...ng Tel 86 24 2334 2829 Fax 86 24 2334 2393 China Shenzhen Tel 86 755 8203 2660 Fax 86 755 8203 1760 China Wuhan Tel 86 27 5980 5300 Fax 86 27 5980 5118 China Xiamen Tel 86 592 2388138 Fax 86 592 23881...

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