MCP3909RD-3PH1 Microchip Technology, MCP3909RD-3PH1 Datasheet - Page 52

• Manufacturer Part Number: MCP3909RD-3PH1
• Description: REF DESIGN MCP3909 3PH ENGY MTR
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-3PH1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: No
• Utilized Ic / Part: MCP3909, PIC18F2520, PIC18F4550
• Primary Attributes: 3-Ph, 220 VAC, In Case, LCD, USB, GUI
• Secondary Attributes: Opto-Isolated Interface for Safety
• Operating Voltage: 220 V
• Operating Current: 5 A
• Description/function: Energy Meter
• For Use With/related Products: MCP3909
• Lead Free Status / RoHS Status: Not applicable / Not applicable

MCP3909 3-Phase Energy Meter Reference Design
5.3.6
FIGURE 5-5:
DS51643B-page 48
Flow Chart for Active Power Phase Delay
Active Power Phase Delay Flow Chart.
Offset Flow
Proceed to
For This
Phase
YES
Put meter in Calibration
Enable Calibration Mode
CAL_CONTROL reg to 1
PHy_W_RAW register
Set MODE1 register bits
and LINE_CYC register
PHy_DELAY calibration
by setting bit 0 and 1 of
register contents based
Configuration C2 (V
STAND_W_RAW
Read contents of
Read contents of
and I
Calculate & Write
on equations in
Section 5.3.7
CAL_MODE
Calibrate
bit 1 low?
register
B
Offset?
Power
Active
at PF=0.5)
Is
YES
NO
B
NO
End This
Phase
© 2008 Microchip Technology Inc.