MCP39F521 datasheet(23/52 Pages) MICROCHIP

tên linh kiện	MCP39F521

Giải thích chi tiết về linh kiện	I2C Power Monitor with Calculation and Energy Accumulation

PDF	52 Pages

Scroll/Zoom	100%

nhà sản xuất	MICROCHIP [Microchip Technology]

Trang chủ	http://www.microchip.com

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23 / 52 page

 2015 Microchip Technology Inc.

DS20005442A-page 23

MCP39F521

FIGURE 5-2:

RMS Current and Voltage Calculation Signal Flow.

5.5

Power and Energy

The MCP39F521 offers signed power numbers for

active and reactive power, import and export registers

for active energy, and four-quadrant reactive power

measurement. For this device, import power or energy

is considered positive (power or energy being

consumed by the load), and export power or energy is

considered negative (power or energy being delivered

by the load). The following figure represents the

measurements obtained by the MCP39F521.

FIGURE 5-3:

The Power Circle and Triangle (S = Apparent, P = Active, Q = Reactive).



OffsetCurrentRMS:s32

CurrentRMS:u32

Range:b32

÷2RANGE

VoltageRMS:u16

ApparentPower:u32



ACCU

2N-1

÷ 2N



ACCU

-1

÷ 2N

GainCurrentRMS:u16

GainVoltageRMS:u16

÷2RANGE



Quadrant I

Quadrant II

Quadrant IV

Quadrant III

Import Active Power

Export Active Power

Import Reactive Power

Export Reactive Power

Consume, Inductive

Consume, Capacitive

Generate, Inductive

Generate, Capacitive

-P, +Q

+P, +Q

+P, -Q

-P, -Q

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