MCP3909EV-MCU16 Microchip Technology, MCP3909EV-MCU16 Datasheet - Page 42

• Manufacturer Part Number: MCP3909EV-MCU16
• Description: EVALUATION BOARD FOR MCP3909
• Manufacturer: Microchip Technology

Specifications of MCP3909EV-MCU16

• Number Of Adc's: 2
• Number Of Bits: 16
• Sampling Rate (per Second): 15k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±1 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: MCP3909
• Silicon Manufacturer: Microchip
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: MCP3909
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP3909 / dsPIC33F 3-Phase Energy Meter Reference Design
DS51723A-page 42
4.4.1
The process of phase calibration is as follow:
1. Setup input condition: Phase A, voltage input 220V, current input is the current
2. Load the dsPIC33F with the proper correction factors. This is automatically done
3.
4. Repeat for Phases B & C.
Note:
for region 1, voltage and current inputs of phase B and phase C are zero.
using the PC software. See Chapter 5. “PC Software”.
phase A.
Repeat steps 1 and 2 for phase lag calibrations for all current regions of
Phase Lag Calibration Process
If the power metering error still can not meet the requirement, the meter can
be calibrated a few more times. When doing so, simply input a new error
value into the front-end of the meter.
© 2009 Microchip Technology Inc.