MCP3909RD-3PH3 Microchip Technology, MCP3909RD-3PH3 Datasheet - Page 51
MCP3909RD-3PH3
Manufacturer Part Number
MCP3909RD-3PH3
Description
REF DESIGN FOR MCP3909 W/18F2520
Manufacturer
Microchip Technology
Datasheets
1.MCP3909T-ISS.pdf
(44 pages)
2.MCP3909T-ISS.pdf
(104 pages)
3.MCP3909RD-3PH3.pdf
(88 pages)
4.MCP3909-ISS.pdf
(40 pages)
Specifications of MCP3909RD-3PH3
Main Purpose
Power Management, Energy/Power Meter
Utilized Ic / Part
MCP3909, PIC18F2520, PIC18F4550
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Secondary Attributes
-
Embedded
-
Primary Attributes
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- MCP3909T-ISS PDF datasheet
- MCP3909T-ISS PDF datasheet #2
- MCP3909RD-3PH3 PDF datasheet #3
- MCP3909-ISS PDF datasheet #4
- Current page: 51 of 88
- Download datasheet (2Mb)
© 2008 Microchip Technology Inc.
5.3.5
The following equations apply for calculating the gain matching in between phases.
The notation “<S>” is used for the standard phase measurement, thus the
PH<S>_W_RAW number is read from the standard phase register, STAND_W_RAW,
that was recorded during the standard phase calibration.
The notation “<Un>” represents the value for the phase being matched to the standard
phase.
For active power gain matching:
EQUATION 5-9:
For apparent power gain matching:
EQUATION 5-10:
Note:
Note:
Gain Matching Equations
Convert to 16-bit signed integer for compatibility with 18F2520 register and
firmware calculations.
Convert to 16-bit signed integer for compatibility with 18F2520 register and
firmware calculations.
PHY_W_GAIN
PHY_VA_GAIN
=
=
⎛
⎝
STAND_W_RAW
---------------------------------------- -
⎛
⎝
PHY_W_RAW
STAND_W_RAW
---------------------------------------- -
PHY_VA_RAW
Meter Calibration
⎞
⎠
⎞
⎠
•
•
16384
16384
DS51643B-page 47
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