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MCP3901 Datasheet(PDF) 13 Page - Microchip Technology

Part # MCP3901
Description  Energy Meter Reference Design
PDF  46 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3901 Datasheet(HTML) 13 Page - Microchip Technology

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MCP3901 AND PIC18F65J90
ENERGY METER
REFERENCE DESIGN
© 2012 Microchip Technology Inc.
DS51968A-page 13
Chapter 2. Hardware
2.1
OVERVIEW
Figures 2-1 and 2-2 show the MCP3901 and PIC18F65J90 and Energy Meter
Reference Design:
FIGURE 2-1:
Top View – Hardware Components.
DANGER
HIGH VOLTAGE
MCP3901 / PIC18F65J90 SHUNT METER
J2
U1
D1
D9D8
D3
D2
J3
LCD1
P1
J4
SW2
SW1
SW3
1
2
4
5
10
9
8
7
6
Legend:
1
=
IR for meter communication
7
=
Push button Switches
2
=
Test points
8
=
9-digit LCD Display with icons for kWh and kVARh
3
=
MCP3901 Analog Front End
9
=
Pulse Output for Active and Reactive
(isolated)
4
=
+9V DC Input (non-isolated)
10
=
USB Connection (isolated)
5
=
Connections to shunt
current sensing resistor
6
=
Connections to Line and Neutral
3



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