MCP3909RD-3PH1 Microchip Technology, MCP3909RD-3PH1 Datasheet - Page 50

• 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
5.3.4
FIGURE 5-4:
DS51643B-page 46
Flow Chart for Gain Matching Flow
Gain Matching Flow Chart.
CAL_CONTROL register
Put meter in Calibration
Enable Calibration Mode
PHy_W_RAW register
Consider this phase U1
by setting bit 0 and 1 of
Set MODE1 register
Configuration C1 (V
bits and LINE_CYC
PHy_W_GAIN and
calibration register
contents based on
Calculate & Write
Read contents of
Read contents of
STAND_W_RAW
PHy_VA_GAIN
and I
Section 5.3.5
CAL_MODE
equations in
bit 1 low
register
register
B
to 1
at PF=1).
Is
?
YES
B
NO
© 2008 Microchip Technology Inc.